Color Block Jam level 1231
In other versions of the game this level is numbered 1238.
A schematic of the board. The game renumbers levels, so compare the board, not the number.
Solution videos
Other boards numbered 1238
The game shuffled level numbers. If the board above isn't yours, it may be one of these.
1233 · 2Videos: 2 · also 1238, 1242