Crevasse Stacking

Under Construction

Crevasse Stacking is an opener inspired by HeboMAI Spin starting with a T-spin Mini Single. Afterwards the flat 'Crevasse' allows for various stacking methods while ideally maintaining a low board state.

First Bag
There are many sequences in which you can build this stack using a J-spin or S-spin. If T is in hold, considering the mirrored setup, a J is required before S or L before Z, if you cannot prop the S/Z on eachother.

General Stacking Methods
A T-spin Mini Single sends 0 lines on its own, meaning in versus gamemodes you will likely receive garbage making long continuations risky. It is possible to downstack while maintaining back-to-back but is situational.


 * T-spin Double → 6-3: Either O or J is required before Z, 2nd diagrams avoid potential soft-drops.

The STMB Cave setup often leads to more Floating T-spins in the next bag, when Z comes before S, shown here but are risky.


 * T-spin Double → Shachiku Train: Completing the 2nd T-spin Double of Shachiku Train is usually impractical, instead stacking 5-4 is easier. Looping Shachiku for two bags is possible as shown here but prevents immediate downstacking.


 * Imperial Cross: Useful for bags with an early Z, but requires another T before downstacking is possible.

There are two ways to spin the J into place, if the I isn't placed use the second method which utilises a 180° Rotate or soft-drop onto the S instead.

An alternate Imperial Cross → Imperial Cross setup. See potential continuations here.

An alternate T-spin Triple setup similar to the Imperial Cross setup.
 * T-spin Triple → Perfect Clear: 86.79% PC chance with 33 unique solutions [https://harddrop.com/fumen/?v115@9gRpwhh0BtC8Rpwhg0wwglBtD8whxwglF8whg0wwhl?C8JeAgWZASBIOBFbcRAyv78Aw3CwBFbEVCUePFDvAAAA9gR?pwhh0BtC8Rpwhg0R4BtD8whR4wwF8whg0ywC8JeAAPZASBI?OBFbcRAyv78Aw3CwBFbEwCTePFDvAAAA9gRph0whBtC8Rpg?0wwwhglBtD8xwwhglF8g0wwwhhlC8JeAAPZAy8nABFbcRAy?v78Aw3CwBFbEVCpuPFDvAAAA9gRph0ilC8Rpg0wwglAtR4D?8xwBtF8g0wwAtR4C8JeAAPZAxFYHBFbcRAyv78Aw3CwBFbU?EDUtHgCsAAAA9gRph0Q4BtC8Rpg0wwR4BtD8ywQ4F8g0zhC?8JeAAPZAx/vKBFbcRAyv78Aw3CwBFb8KCUtPFDvAAAA9gRp?hlQ4BtC8RpwwglR4BtD8xwg0Q4F8wwgli0C8JeAAPZAx/vK?BFbcRAyv78Aw3CwBFbUOCUNUFDvAAAA9gzhilC8i0wwglAt?R4D8xwBtF8g0wwAtR4C8JeAAPZAR+/DBFbcRAyv78Aw3CwB?FbUEDUt/VCpAAAA9gRpwhQ4BtwwC8RpwhR4ywD8whilF8wh?glQ4BtC8JeAAPZAR+nABFbcRAyv78Aw3CwBFbEVCJNegC6A?AAA9gRpzhwwC8Rpg0R4ywD8R4BtF8i0BtC8JeAAPZAx8P9A?FbcRAyv78Aw3CwBFbUEDUtHgCpAAAA9gRpilBtC8RpzhBtD?8glR4wwF8R4ywC8JeAAPZAR7HOBFbcRAyv78Aw3CwBFbEwC?zHDMCsAAAA9gRph0ilC8Rpg0wwzhD8xwBtF8g0wwglBtC8J?eAAPZAx5/DBFbcRAyv78Aw3CwBFbUED0PFgCsAAAA9gilzh?C8glBtR4ywD8BtRpF8R4RpwwC8JeAAPZAx5P9AFbcRAyv78?Aw3CwBFbMfCaNOMCsAAAA9gilzhC8glywRpR4D8BtRpF8ww?BtR4C8JeAAPZAR4XHBFbcRAyv78Aw3CwBFbUEDPNOMCsAAA?A9gilzhC8glBtR4ywD8R4RpF8BtRpwwC8JeAAPZAR4f2AFb?cRAyv78Aw3CwBFbMfCzXOMCsAAAA9gRpwhi0wwC8RpwhBtg?0xwD8whilF8whglBtwwC8JeAAPZAR4f2AFbcRAyv78Aw3Cw?BFbEVCpXegCqAAAA9gRpwhi0wwC8RpwhglQ4g0xwD8whglR?4F8whhlQ4wwC8JeAAPZAR4f2AFbcRAyv78Aw3CwBFbssCM+?dgCqAAAA9gRpwwzhC8Rpxwg0ilD8wwR4glF8R4i0C8JeAAP?YAZlwRASo78A1no2AlsCSASIbgCU+TPC9gili0wwC8glBtR?4g0xwD8BtRpF8R4RpwwC8JeAAPYAZVuRASo78A1no2AlsCS?ASIaFDzu/VC9gzhwwBtC8i0xwglBtD8g0R4glF8R4wwhlC8?JeAAPYAYlwRASo78A1no2AlsCSASYrtC6/NMC9gRpBti0C8?RpwwBtilD8xwR4F8wwR4glg0C8JeAAPYAY1pRASo78A1no2?AlsCSASITxCMnzPC9gg0zhR4C8i0BtywD8RpBtF8RpR4wwC?8JeAAPYAYFjRASo78A1no2AlsCSASIaFD0vLMC9gRpwhwwi?0C8RpwhxwilD8whBtglF8whwwBtg0C8JeAAPYAX1pRASo78?A1no2AlsCSASo8VC6+aPC9gRpwhwwi0C8RpwhxwilD8whww?R4F8whR4glg0C8JeAAPYAX1pRASo78A1no2AlsCSASILMC0?yaPC9gRpwhilwwC8RpwhglR4xwD8whi0F8whR4g0wwC8JeA?APYAWFsRASo78A1no2AlsCSAS42LCU9KWC9gili0wwC8glB?tR4g0xwD8R4RpF8BtRpwwC8JeAAPYAWlnRASo78A1no2Als?CSASIytC6u/VC9gRpg0R4BtC8RpzhBtD8i0wwF8R4ywC8Je?AAPYAWFjRASo78A1no2AlsCSASYlFDPentC9gRpwwi0glC8?RpxwzhD8wwR4g0F8R4ilC8JeAAPYAWFjRASo78A1no2AlsC?SASILMCvu/VC9gg0BtzhC8i0R4ywD8R4RpF8BtRpwwC8JeA?APYAVVlRASo78A1no2AlsCSASIytC0fbMC9gRpgli0wwC8R?pglBtg0xwD8hlBtF8zhwwC8JeAAPYAUVlRASo78A1no2Als?CSASoEgCsXmPC9gi0R4RpC8zhwwilD8g0xwglF8R4wwRpC8?JeAAPYAUFjRASo78A1no2AlsCSASYVWCpvytC9gzhwwRpC8?i0xwilD8BtwwglF8g0BtRpC8JeAAPYATVuRASo78A1no2Al?sCSAS4iWC0vCMC9gzhwwRpC8i0xwilD8g0R4glF8R4wwRpC?8JeAAPYATVuRASo78A1no2AlsCSASYrtCq+CMC9gi0R4BtC?8zhwwglBtD8g0xwglF8R4wwhlC8JeAAPYAT1gRASo78A1no?2AlsCSASYDxCaentC here].

Centre Well
A less committal stack that can be followed up with many freestyle techniques. The I can be placed in various ways allowing for 6-3, 5-4 or other stacks.


 * STMB Cave → 5-4: Resolving the centre well dependency with an I and J is desirable.


 * T-spin Double → 5-4: J and O can work in either order, the former allows for Blink SZ Prop opportunities whereas the latter allows for floating T-spins. In cases of an early I the third stack is always possible.


 * Mechanical TSD: A repeatable pattern that results in Floating T-spin Doubles. At any point one can donate the extra I breaking the pattern.

Making a Super T-spin Double is only reliable when using one or two extra layers of minos created by the Mechanical T-spin Double setup, but prevents downstacking.


 * 5-Height Perfect Clear: This setup has a 99.25% PC chance with 124 unique solutions [https://harddrop.com/fumen/?v115@zgzhR4h0RpC8R4whg0AtRpC8hlwhBtF8glwhAtG8gl?whg0C8JeAgWaASE4UBFbcRAyv78Aw3CwBFb8KCs3HgCT+AA?Azgzhywi0C8zhR4g0C8BtwwR4F8BtglG8ilC8JeAAPaAS+3?5AFbcRAyv78Aw3CwBFbEVCadNPCU+AAAzg3hRpC8g0ilAtR?pC8i0BtF8glwwAtG8ywC8JeAAPaAy8XHBFbcRAyv78Aw3Cw?BFbEwC6/LgCJ+AAAzgzhAtilRpC8BtglR4RpC8AtzhF8g0R?4G8i0C8JeAAPaAy8/DBFbcRAyv78Aw3CwBFbUOCJnLuCM+A?AAzgzhywg0RpC8zhg0RpC8Btwwh0F8BtglG8ilC8JeAAPaA?y8P9AFbcRAyv78Aw3CwBFbEVCan3LCU+AAAzgzhBtzhC8Rp?BtilC8RpR4glF8i0G8R4g0C8JeAAPaAS7HOBFbcRAyv78Aw?3CwBFbUOCTHUFDJ+AAAzg3hRpC8Q4i0glRpC8R4ilF8Q4ww?g0G8ywC8JeAAPaAS7/DBFbcRAyv78Aw3CwBFbEwCMtHgCJ+?AAAzgzhywi0C8zhR4g0C8hlwwR4F8glRpG8glRpC8JeAAPa?AS7nABFbcRAyv78Aw3CwBFbMfCMdNPCU+AAAzgzhAtzhglC?8BtR4ilC8AtR4h0F8Rpg0G8Rpg0C8JeAAPaAy5XHBFbcRAy?v78Aw3CwBFbMfCKNUFDJ+AAAzgzhAtg0R4RpC8Bti0RpC8A?tzhF8ilG8glR4C8JeAAPaAxF45AFbcRAyv78Aw3CwBFbEVC?JnPFDT+AAAzgzhAtR4glRpC8BtilRpC8AtzhF8i0G8R4g0C?8JeAAPaAxF45AFbcRAyv78Aw3CwBFbUOCJHUFDT+AAAzgzh?ili0C8zhR4g0C8ywR4F8wwRpG8glRpC8JeAAPaAxFg2AFbc?RAyv78Aw3CwBFbMfCzeNPCM+AAAzgzhywi0C8Rpzhg0C8Rp?wwR4F8ilG8glR4C8JeAAPaAxFg2AFbcRAyv78Aw3CwBFbEV?CTXNPCU+AAAzgzhR4zhC8R4RpilC8BtRpglF8i0G8Btg0C8?JeAAPaAxCgRBFbcRAyv78Aw3CwBFbUOCaHstCJ+AAAzgzhi?li0C8Rpzhg0C8RpywF8BtwwG8glBtC8JeAAPaAxCoABFbcR?Ayv78Aw3CwBFbUEDUXNPCM+AAAzgzhR4hlRpC8zhglRpC8R?4Atg0glF8Btg0G8Ath0C8JeAAPaAxCQ9AFbcRAyv78Aw3Cw?BFbUEDvi3LCT+AAAzgzhAtilRpC8BtywRpC8AtzhF8g0glw?wG8i0C8JeAAPaARBYHBFbcRAyv78Aw3CwBFbUOCJnjxCM+A?AAzgzhAtywRpC8BtilRpC8AtzhF8g0glwwG8i0C8JeAAPaA?RBYHBFbcRAyv78Aw3CwBFbUOCJnjWCU+AAAzgzhywAtRpC8?ilBtRpC8glzhF8g0wwAtG8i0C8JeAAPaARBAEBFbcRAyv78?Aw3CwBFbUOCJHUFDU+AAAzg3hRpC8Q4ywglRpC8R4ilF8i0?G8Q4wwg0C8JeAAPaARBoABFbcRAyv78Aw3CwBFbUOCzCegC?J+AAAzgzhAti0RpC8BtR4g0RpC8AtzhF8R4glG8ilC8JeAA?PaAR+XHBFbcRAyv78Aw3CwBFbEVCJnzPCJNBAAzgzhRpywg?lC8Q4RpwhilC8R4g0whwwF8Q4g0whG8h0whC8JeAAPaAx8H?OBFbcRAyv78Aw3CwBFb8KCKNMgCU+AAAzgzhR4ywglC8i0w?hilC8R4g0whwwF8RpwhG8RpwhC8JeAAPaAx8nABFbcRAyv7?8Aw3CwBFbMfCpintCU+AAAzgzhR4hlRpC8R4Atg0glRpC8z?hglF8Btg0G8Ath0C8JeAAPaAx8nABFbcRAyv78Aw3CwBFb8?KCviPFDT+AAAzg3hRpC8Q4i0AtRpC8R4wwBtF8xwAtG8Q4w?wg0C8JeAAPaAx8P9AFbcRAyv78Aw3CwBFbEwCatHgCJ+AAA?zg3hRpC8ywglAtRpC8i0BtF8wwg0AtG8ilC8JeAAPaAx8P9?AFbcRAyv78Aw3CwBFbUEDqOMgCJ+AAAzgzhili0C8Q4Btyw?g0C8R4BtwwF8Q4RpG8glRpC8JeAAPaAR7fRBFbcRAyv78Aw?3CwBFbMfCzXmPCM+AAAzgzhywg0RpC8zhg0RpC8hlQ4h0F8?glR4G8glwwQ4C8JeAAPaAR7XHBFbcRAyv78Aw3CwBFbssCM?n3LCU+AAAzgzhBtwwi0C8Rpzhg0C8RpywF8ilG8glBtC8Je?AAPaAR7P9AFbcRAyv78Aw3CwBFbEVCPe/wCa+AAAzgzhR4A?tg0RpC8R4Btg0RpC8ywh0F8wwAtglG8ilC8JeAAPaAR7P9A?FbcRAyv78Aw3CwBFbEVCUnPFDT+AAAzg3hRpC8g0ywAtRpC?8i0BtF8ilG8glwwAtC8JeAAPaAR7P9AFbcRAyv78Aw3CwBF?bEVC6/dgCJ+AAAzgzhAtQ4zhC8BtR4ilC8Ath0Q4glF8g0R?pG8g0RpC8JeAAPaAx5/DBFbcRAyv78Aw3CwBFbMfCqyjFDJ?+AAAzgzhwwi0RpC8ywR4RpC8BtR4g0F8BtglG8ilC8JeAAP?aAx5nABFbcRAyv78Aw3CwBFbEVCa9KxCK+AAAzg3hRpC8Q4?i0glRpC8R4ilF8ywG8Q4wwg0C8JeAAPaAx535AFbcRAyv78?Aw3CwBFbEwCziHgCJ+AAAzg3hRpC8g0ilAtRpC8i0BtF8yw?G8glwwAtC8JeAAPaAx535AFbcRAyv78Aw3CwBFbEwC6/LgC?J+AAAzgzhR4whi0C8R4glywg0C8ilwhwwF8RpwhG8RpwhC8?JeAAPaAR43UBFbcRAyv78Aw3CwBFbMfCs+jPCJ+AAAzgzhR?4gli0C8R4zhg0C8BtywF8BtwwG8ilC8JeAAPaAR43UBFbcR?Ayv78Aw3CwBFbUEDUujPCM+AAAzgzhAtzhglC8BtRpilC8A?th0R4F8g0R4G8g0RpC8JeAAPaAR4fRBFbcRAyv78Aw3CwBF?bssCqirgCJ+AAAzgzhwwilRpC8zhAtRpC8ywBtF8g0glAtG?8i0C8JeAAPaAR4/DBFbcRAyv78Aw3CwBFbUOCaX9wCM+AAA?zgzhR4ywglC8zhilC8R4Atg0wwF8Btg0G8Ath0C8JeAAPaA?R4nABFbcRAyv78Aw3CwBFbUOC6SltCU+AAAzgzhBtywglC8?RpBtilC8RpR4wwF8i0G8R4g0C8JeAAPaAR4nABFbcRAyv78?Aw3CwBFbUOCTHUFDU+AAAzgzhg0ywRpC8zhglRpC8BtilF8?BtwwG8i0C8JeAAPaAR4f2AFbcRAyv78Aw3CwBFbUEDMX9wC?K+AAAzg0hywRpC8g0whglwwAtRpC8i0BtF8whglAtG8whhl?C8JeAAPaAR4f2AFbcRAyv78Aw3CwBFbUEDqSFgCU+AAAzgz?hwwR4g0RpC8zhg0RpC8ywh0F8R4glG8ilC8JeAAPZAZVuRA?So78A1no2AlsCSASYLgCK+9tCpAAAAzgzhwwRpi0C8zhR4g?0C8ywR4F8ilG8glRpC8JeAAPZAZVuRASo78A1no2AlsCSAS?YrtCp/dgCpAAAAzgzhi0glRpC8Q4zhRpC8R4ilF8Q4wwg0G?8ywC8JeAAPZAZVuRASo78A1no2AlsCSASY9tCP+TPCpAAAA?zgzhRpzhC8Q4RpAtilC8R4BtglF8i0G8Q4Atg0C8JeAAPZA?ZlnRASo78A1no2AlsCSAS4OFDzyCMCpAAAAzg3hRpC8Q4il?AtRpC8R4wwBtF8Q4xwG8glwwAtC8JeAAPZAZlnRASo78A1n?o2AlsCSASY9tC6yCMCpAAAAzg3hRpC8Q4g0ywRpC8R4ilF8?Q4glwwG8i0C8JeAAPZAZlnRASo78A1no2AlsCSASYrtC0vC?MCpAAAAzgzhywAtRpC8Q4g0wwBtRpC8R4ilF8Q4glAtG8i0?C8JeAAPZAZlnRASo78A1no2AlsCSASYrtC6vKxCpAAAAzg3?hRpC8BtilRpC8ywh0F8wwglg0G8Btg0C8JeAAPZAZlnRASo?78A1no2AlsCSAS4+wCsHDMCpAAAAzg3hRpC8Q4g0ilRpC8R?4ywF8Q4glwwG8i0C8JeAAPZAZlnRASo78A1no2AlsCSASY9?tCsvCMCpAAAAzg0hwwR4RpC8g0whxwAtRpC8i0BtF8whwwA?tG8whR4C8JeAAPZAZVlRASo78A1no2AlsCSAS4yPCp+ytCp?AAAAzgzhywilC8RpwwzhC8RpR4glF8i0G8R4g0C8JeAAPZA?ZFjRASo78A1no2AlsCSAS4mtCP+VWCpAAAAzgzhAtg0ywgl?C8Btg0whilC8Ath0whwwF8RpwhG8RpwhC8JeAAPZAZ1gRAS?o78A1no2AlsCSASICMCsfjxCpAAAAzgzhRpywglC8i0whil?C8Btg0whwwF8BtwhG8RpwhC8JeAAPZAYlwRASo78A1no2Al?sCSASoMFDs/dgCpAAAAzgzhAtywRpC8Bti0RpC8AtglQ4ww?g0F8glR4G8hlQ4C8JeAAPZAYVuRASo78A1no2AlsCSASYrt?CvfjxCpAAAAzgzhi0ilC8Q4BtzhC8R4BtglF8Q4wwg0G8yw?C8JeAAPZAYVuRASo78A1no2AlsCSASY9tCa+TPCpAAAAzgz?hi0glRpC8BtilRpC8ywR4F8wwR4G8Btg0C8JeAAPZAY1pRA?So78A1no2AlsCSASITxCaHUPCpAAAAzgzhilAtRpC8i0BtR?pC8ywR4F8wwR4G8glg0AtC8JeAAPZAY1pRASo78A1no2Als?CSASITxC6vKWCpAAAAzgzhg0ilR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AzgzhywAtRpC?8i0BtRpC8hlg0R4F8glR4G8glwwAtC8JeAAPZASlwRASo78?A1no2AlsCSASITWCvfjxCpAAAAzgzhywilC8RpwwzhC8RpA?tg0glF8Btg0G8Ath0C8JeAAPZASlnRASo78A1no2AlsCSAS?4OFDP+VWCpAAAAzgzhAtRpilC8BtQ4zhC8AtwwR4glF8xwQ?4G8wwRpC8JeAAPZAS1gRASo78A1no2AlsCSASY9tCpXMgCp?AAAAzg3hRpC8i0R4RpC8hlywF8glg0wwG8glR4C8JeAAPZA?R1pRASo78A1no2AlsCSASYDxCK9CMCpAAAAzgzhAtywRpC8?Bti0RpC8Atilg0F8glR4G8R4wwC8JeAAPZAR1gRASo78A1n?o2AlsCSASITWCvfjxCpAAAA here]. (URL too long)

Inferior Centre Well
A slightly inferior centre well stack due to the uneven height difference on either side of the well, resulting in less stable and diverse stacking options. In some cases you may need to 180° rotate the J.


 * STMB Cave → 5-4: This is difficult to convert to 5-4 without filling the L or I/J dependency and wasting a T piece, unlike the original Centre Well.

An interesting Triple Double Attack conversion after the first STMB Cave. This is also possible but avoidable in the original Centre Well as shown here.


 * 5-Height Perfect Clear: This setup has a 93.97% PC chance with I on hold. Without I on hold this becomes 90%, see the 48 unique solutions [https://harddrop.com/fumen/?v115@zgzhRpBthlC8Q4RpwhBtglC8R4g0whB8glD8Q4g0wh?G8h0whC8JeAgWaAT4fRBFbcRAyv78Aw3CwBFb8KCKNUFDP+?AAAzgzhR4zhC8R4Rpi0C8BtRpB8g0D8BtglG8ilC8JeAAPa?AyFgRBFbcRAyv78Aw3CwBFbEVCanntCJ+AAAzgzhR4BthlC?8R4RpBtglC8zhB8glD8g0RpG8i0C8JeAAPaASEgRBFbcRAy?v78Aw3CwBFbUOCpyaFDT+AAAzgzhRpBthlC8Q4RpwhBtglC?8R4wwwhB8glD8xwwhG8Q4wwwhC8JeAAPaAy/f2AFbcRAyv7?8Aw3CwBFb8KCUNUFDP+AAAzgzhBtzhC8RpBti0C8RpR4B8g?0D8R4glG8ilC8JeAAPaAS7HOBFbcRAyv78Aw3CwBFbEVCTn?PFDJ+AAAzgzhR4BthlC8i0whBtglC8R4g0whB8glD8RpwhG?8RpwhC8JeAAPaAS7P9AFbcRAyv78Aw3CwBFbMfCpizPCT+A?AAzgzhAtywhlC8BtzhglC8Ath0wwB8glD8g0RpG8g0RpC8J?eAAPaAxFIOBFbcRAyv78Aw3CwBFbMfCqSNFDU+AAAzgzhww?Rpi0C8ywzhC8BtRpB8g0D8BtglG8ilC8JeAAPaAxCQ9AFbc?RAyv78Aw3CwBFbEVCa+dgCK+AAAzgzhRpBthlC8i0whBtgl?C8ywwhB8glD8wwg0whG8RpwhC8JeAAPaARBIOBFbcRAyv78?Aw3CwBFb8KC0iPFDP+AAAzgzhRpBthlC8ywwhBtglC8i0wh?B8glD8wwg0whG8RpwhC8JeAAPaARBIOBFbcRAyv78Aw3CwB?Fb8KCqCmFDP+AAAzgzhAtywhlC8BtzhglC8AtRpwwB8glD8?i0G8Rpg0C8JeAAPaAR+P9AFbcRAyv78Aw3CwBFbUOCvSNFD?U+AAAzgzhAtywhlC8BtzhglC8Ati0B8glD8Rpg0G8RpwwC8?JeAAPaAR+35AFbcRAyv78Aw3CwBFbMfCqSNFDU+AAAzgzhB?tR4hlC8RpzhglC8RpBtB8glD8g0R4G8i0C8JeAAPaAR73UB?FbcRAyv78Aw3CwBFbUOCvSNFDT+AAAzgzhRpzhC8Q4RpAti?0C8R4BtB8g0D8Q4AtglG8ilC8JeAAPaAR7HOBFbcRAyv78A?w3CwBFbEVCatHgCJ+AAAzgzhAtwwR4hlC8BtzhglC8AtywB?8glD8g0R4G8i0C8JeAAPaAR7XHBFbcRAyv78Aw3CwBFbUOC?MejxCT+AAAzgzhBtR4hlC8RpzhglC8RpR4B8glD8g0BtG8i?0C8JeAAPaAR7P9AFbcRAyv78Aw3CwBFbUOCvSltCa+AAAzg?zhRpwhwwhlC8Q4RpywglC8R4g0whB8glD8Q4g0whG8h0whC?8JeAAPaAx5/DBFbcRAyv78Aw3CwBFbUOCzCegCJ+AAAzgzh?R4h0hlC8R4zhglC8ywg0B8glD8Btg0G8wwBtC8JeAAPaAx5?P9AFbcRAyv78Aw3CwBFbUEDMujPCpOBAAzgzhAtwwh0hlC8?BtzhglC8AtywB8glD8Rpg0G8Rpg0C8JeAAPaAx535AFbcRA?yv78Aw3CwBFbMfCMejxCK+AAAzgzhywi0C8Q4BtzhC8R4Bt?B8g0D8Q4wwglG8ilC8JeAAPaAR4HOBFbcRAyv78Aw3CwBFb?EVCznNPCU+AAAzgzhR4BthlC8zhBtglC8R4RpB8glD8g0Rp?G8i0C8JeAAPaAR4nABFbcRAyv78Aw3CwBFbUOCvibMCT+AA?Azg0hQ4BthlC8g0whR4BtglC8i0Q4B8glD8whRpG8whRpC8?JeAAPaAR4P9AFbcRAyv78Aw3CwBFbMfCqyLMCa+AAAzgzhR?pzhC8Q4ywi0C8R4hlB8g0D8Q4wwglG8RpglC8JeAAPaAR4P?9AFbcRAyv78Aw3CwBFbEVCz/dgCJ+AAAzgzhR4whwwhlC8i?0ywglC8R4g0whB8glD8RpwhG8RpwhC8JeAAPZAZlnRASo78?A1no2AlsCSASIKWC0PltCpAAAAzgzhywi0C8RpwwzhC8RpR?4B8g0D8R4glG8ilC8JeAAPZAZFjRASo78A1no2AlsCSASYr?tCP+lPCpAAAAzgzhili0C8Q4BtzhC8R4BtB8g0D8Q4RpG8g?lRpC8JeAAPZAYVuRASo78A1no2AlsCSASIytCae/VCpAAAA?zgzhR4zhC8R4hli0C8ywglB8g0D8BtglG8wwBtC8JeAAPZA?Y1pRASo78A1no2AlsCSAS4iWC0vLMCpAAAAzgzhwwR4i0C8?ywzhC8BthlB8g0D8BtglG8R4glC8JeAAPZAYVlRASo78A1n?o2AlsCSASYTFDpuntCpAAAAzgzhAtQ4zhC8BtR4i0C8AtRp?Q4B8g0D8RpglG8ilC8JeAAPZAXFjRASo78A1no2AlsCSASY?LgCKtbMCpAAAAzgzhRpwhwwhlC8i0ywglC8Btg0whB8glD8?BtwhG8RpwhC8JeAAPZAWVuRASo78A1no2AlsCSAS4iWC0PF?gCpAAAAzgzhwwQ4gli0C8ywzhC8BtR4B8g0D8BtQ4G8ilC8?JeAAPZAWFsRASo78A1no2AlsCSAS4aMCUt/VCpAAAAzgzhA?tg0whwwhlC8Btg0ywglC8Ath0whB8glD8RpwhG8RpwhC8Je?AAPZAWVlRASo78A1no2AlsCSASIKWC0fbMCpAAAAzgzhRpz?hC8Q4Rpwwi0C8R4xwB8g0D8BtwwG8Q4BtC8JeAAPZAWFjRA?So78A1no2AlsCSAS4ixCzvCMCpAAAAzgzhAtg0whR4wwC8B?tg0R4xwC8Ath0whB8wwD8RpwhG8RpwhC8JeAAPZAVVcRASo?78A1no2AlsCSASIKxCzfbMCpAAAAzgzhAtQ4zhC8BtR4i0C?8AtilB8g0D8glwwQ4G8ywC8JeAAPZAUVuRASo78A1no2Als?CSASYVWCqHMMCpAAAAzgzhAtQ4zhC8BtR4i0C8AtilB8g0D?8ywG8glwwQ4C8JeAAAzgzhAtQ4zhC8BtR4i0C8AtywB8g0D?8ilG8glwwQ4C8JeAAPZAUVuRASo78A1no2AlsCSASYDxCqH?MMCpAAAAzgzhRpwwi0C8Q4BtzhC8R4BtB8g0D8Q4xwG8Rpw?wC8JeAAPZAUVlRASo78A1no2AlsCSASIjFDp/dgCpAAAAzg?zhRpwhR4wwC8i0R4xwC8Btg0whB8wwD8BtwhG8RpwhC8JeA?APZAUVlRASo78A1no2AlsCSAS4ixCzPFgCpAAAAzgzhAtR4?i0C8BtwwzhC8AtywB8g0D8R4glG8ilC8JeAAPZATVuRASo7?8A1no2AlsCSASYDxCp3ntCpAAAAzgzhAthli0C8BtwwzhC8?AtywB8g0D8RpglG8RpglC8JeAAPZATVuRASo78A1no2AlsC?SASIKxCp3/VCpAAAAzgzhAtRpi0C8BtwwzhC8AtywB8g0D8?ilG8glRpC8JeAAPZATVuRASo78A1no2AlsCSASYDxCp3HgC?pAAAAzgzhywi0C8RpQ4zhC8RpR4B8g0D8ilG8glwwQ4C8Je?AAPZATVuRASo78A1no2AlsCSASYrtCPe/wCpAAAAzgzhAtQ?4zhC8BtR4i0C8AtglRpB8g0D8glRpG8hlQ4C8JeAAPZAT1p?RASo78A1no2AlsCSASYLgCqHMMCpAAAAzgzhili0C8RpQ4z?hC8RpR4B8g0D8glwwQ4G8ywC8JeAAPZASFsRASo78A1no2A?lsCSASY9tCPe/VCpAAAAzgzhili0C8RpQ4zhC8RpR4B8g0D?8BtQ4G8glBtC8JeAAPZASFsRASo78A1no2AlsCSAS4KuCPe?/VCpAAAAzgzhili0C8RpQ4zhC8RpR4B8g0D8ywG8glwwQ4C?8JeAAPZASFsRASo78A1no2AlsCSASY9tCPe/VCpAAAAzgzh?AtRpi0C8BtQ4zhC8AtwwR4B8g0D8xwQ4G8wwRpC8JeAAPZA?S1gRASo78A1no2AlsCSASY9tCp3HgCpAAAA here].

Crevice Stacking
Crevice Stacking, the precursor to Crevasse stacking, is more akin to HeboMAI Spin as it builds the overhang to the T-spin Double in the first bag. It is included here as it offers some piece sequences where Crevasse stacking cannot be built.

First Bag
Crevice stacking becomes useful when an early T prohibits the use of Crevasse stacking, but O comes before either S or Z. Note J and L are interchangeable resembling Joystick a different Mini Triple Double opener.

Second Bag
To perform the T-spin Double a minimum of two pieces are needed as opposed to one. Combined with the uneven stack this limits stable stacking choices. Like Crevasse Stacking most continuations result in 6-3 or 5-4.


 * Early S/Z: Blocks can be created interchangeably, with enough foresight it is generally simple to maintain a flat stack.

If you are forced into placing O on the left or O comes last there are some methods to not waste T if there is no simple solution.


 * Late S/Z: This allows for a Shachiku Train identical to the one in Crevasse Stacking. If Z comes before T one can opt for a floating T-spin instead.