Cooper's Hex
From HexWiki
A variant of Hex or of Y, where move order is changed from the ordinary alteration of Black and White (BWBWBWBW...) to a system where each player sometimes gets two moves (BWWBWBBWWBBWBWWBW...). The sequence is given by the odd-even parity of the sum of the binary digits of the natural numbers:
| Natural number | Sum of Digits | Parity | Player |
|---|---|---|---|
| 0 | 0 | E | B |
| 1 | 1 | O | W |
| 10 | 1 | O | W |
| 11 | 2 | E | B |
| 100 | 1 | O | W |
| 101 | 2 | E | B |
| 110 | 2 | E | B |
| 111 | 3 | O | W |
| 1000 | 1 | O | W |
Early reports indicate that in strategy, the game is somewhat similar to Halsør's Hex, where each player has two moves after Black's first move.
