1rb1k2r/p1p1p1bp/1p5n/2P2pp1/1P2pP1P/N6R/P1qnN1P1/R1B1KB2 b k - 1 23
FEN state: 1rb1k2r/p1p1p1bp/1p5n/2P2pp1/1P2pP1P/N6R/P1qnN1P1/R1B1KB2 b k - 1 23 ; Best move: c2a4
The current state of the chess board is: Black rook at b8, black bishop at c8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at e7, black bishop at g7 and black pawn at h7. Black pawn at b6 and black knight at h6. White pawn at c5, black pawn at f5 and black pawn at g5. White pawn at b4, black pawn at e4, white pawn at f4 and white pawn at h4. White knight at a3 and white rook at h3. White pawn at a2, black queen at c2, black knight at d2, white knight at e2 and white pawn at g2. White rook at a1, white bishop at c1, white king at e1 and white bishop at f1. Black kingside is the only castle move available. Half move number is 1. Full move number is 23. Black to move.