Worldwide Combos

[TBC]

"Worldwide Combos" is an unofficial multiplayer block-stacking browser game. The first public release was made in 2017, July 2nd. Worldwide Combos differs from other similar games mostly by its multi-knockout gameplay, where players have to make their opponent top out as much as possible within the time limit. The game provides both "1 versus 1" multiplayer modes (including a ranked mode with a matchmaking system) and solo modes.

Gameplay
Even though Worldwide Combos's gameplay is essentially inspired by Guideline rules, a few mechanisms differ from other platforms. These changes were mainly made for balancing purpose, as having a multi-knockout system has a non-negligible influence on the game's meta.

Rotation system
Worldwide Combos uses SRS for its rotation system. However, it allows 180° rotations, which are not specified by the guidelines: when a 180° rotation is performed, two clockwise rotations are done, then the kick table is checked for the second rotation.

Handicap system
Worldwide Combos uses 3 main handicap types: holes, bombs, and solid.

Handicap with holes
Handicap with holes are lines with 9 out of 10 slots filled. These lines are cleared the same as player-made lines. The holes positions are determined randomly. However, when several lines are sent by placing one block, all the handicap lines sent will have the same slot unfilled

Handicap with bombs
Handicap with bombs are filled lines, but one of the 10 slots contain a bomb. These lines are cleared by placing a block right above the bomb's position. The bomb's positions are determined randomly. However, two or more consecutive bombs in the same column couldn't be cleared at the same time.

Solid handicap
Solid handicaps basically consist of fully filled lines. Since it is not possible to clear them in the normal way, in order to get rid of them one has to clear lines on their side. Then, while that player has handicap lines at the bottom of the grid, lines that should be sent to the opponent are not sent but are used to clear the solid lines. Solid handicaps are not used in Arena, but matches with this handicap can be played in custom rooms along with holes and bomb handicaps

Attack table
Worldwide Combos uses its attack table, which is not always the same depending on whether the all-spins option is enabled or not. A line clear is counted as a spin when the last used block cannot be moved before being first rotated.

Usual Attack Table
Worldwide Combos use a special combo system that let the combo bonus would depend on the current combo and handicap lines cleared in the combo. the Max. Lines Sent in the chart is the max combo bonus at that combo and the combo bonus would be Math.min(Math.max(1, h), l(k)), h is the total handicap lines cleared in the combo, k is the Max. Lines Sent.

All Spins Attack Table
Mostly it is the same as the Usual Attack Table, but it had some differences:
 * 1) Quadruple/Quintuple would break B2B.
 * 2) if the Spin used the same piece as the previous one, B2B would add 1 line, but if not, B2B would add 2 lines

Tuning Limit
in Tuning Limit, the DAS and ARR would be fixed to 150ms and 25ms, soft drop DAS and ARR would both be fixed to 25 ms, and the gravity would be fixed to 1/60G. Every Line clear would have 500ms Line ARE, but the player is able to spin the piece between it.

Basic Holes(Bombs)
When playing Basic Holes(Bombs), the following rules are in play: 7-bag randomizer, handicap lines have holes(bombs), and the usual attack table

Chaos Holes(Bombs)
When playing Chaos Holes(Bombs), the following rules are in play: 21-bag randomizer, handicap lines have holes(bombs),  All spins are enabled and the all spin attack table

Deadline Holes(Bombs)
When playing Deadline Holes(Bombs), the following rules are in play: 1-bag randomizer, handicap lines have holes(bombs), and the deadline attack table