Connect 4 – Weak Solution Explorer

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Appears once the opening tree ends.

Win — Make a winning move, if available.
Block — Block an opponent winning move, if available.
! (urgent) — Play on it, if available.
@ (miai) — Play on it, only if exactly one is available.
| (claimodd) — Play on it only if on an odd row (1, 3, 5 from bottom).
· (claimeven) — Play on it only if on an even row (2, 4, 6 from bottom). Shown as · (dot) in the diagram.
+ — Play on it, if available.
= — Play on it, if available.
- — Play on it, if available.

Data & research by 2swap. Full explanation.