rNb2b1r/1n2p1kp/p6n/6p1/pP2P1P1/2PP1p1P/P2N1P2/R1B1KB1R w Q - 2 20
FEN state: rNb2b1r/1n2p1kp/p6n/6p1/pP2P1P1/2PP1p1P/P2N1P2/R1B1KB1R w Q - 2 20 ; Best move: b8c6
The current state of the chess board is: Black rook at a8, white knight at b8, black bishop at c8, black bishop at f8 and black rook at h8. Black knight at b7, black pawn at e7, black king at g7 and black pawn at h7. Black pawn at a6 and black knight at h6. Black pawn at g5. Black pawn at a4, white pawn at b4, white pawn at e4 and white pawn at g4. White pawn at c3, white pawn at d3, black pawn at f3 and white pawn at h3. White pawn at a2, white knight at d2 and white pawn at f2. White rook at a1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White queenside is the only castle move available. Half move number is 2. Full move number is 20. White to move.