rn2k1r1/pB2p1b1/1q4p1/1pP1N2p/3PP2n/PbP2p2/3B1P1P/RN2QK1R w q - 2 23
FEN state: rn2k1r1/pB2p1b1/1q4p1/1pP1N2p/3PP2n/PbP2p2/3B1P1P/RN2QK1R w q - 2 23 ; Best move: c5b6
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8 and black rook at g8. Black pawn at a7, white bishop at b7, black pawn at e7 and black bishop at g7. Black queen at b6 and black pawn at g6. Black pawn at b5, white pawn at c5, white knight at e5 and black pawn at h5. White pawn at d4, white pawn at e4 and black knight at h4. White pawn at a3, black bishop at b3, white pawn at c3 and black pawn at f3. White bishop at d2, white pawn at f2 and white pawn at h2. White rook at a1, white knight at b1, white queen at e1, white king at f1 and white rook at h1. Black queenside is the only castle move available. Half move number is 2. Full move number is 23. White to move.