1r1qk2r/pbppn3/4p1p1/1p4Pp/2PP4/4P2P/Pb1QP1B1/RNB1KR2 w Q - 2 18
FEN state: 1r1qk2r/pbppn3/4p1p1/1p4Pp/2PP4/4P2P/Pb1QP1B1/RNB1KR2 w Q - 2 18 ; Best move: c1b2
The current state of the chess board is: Black rook at b8, black queen at d8, black king at e8 and black rook at h8. Black pawn at a7, black bishop at b7, black pawn at c7, black pawn at d7 and black knight at e7. Black pawn at e6 and black pawn at g6. Black pawn at b5, white pawn at g5 and black pawn at h5. White pawn at c4 and white pawn at d4. White pawn at e3 and white pawn at h3. White pawn at a2, black bishop at b2, white queen at d2, white pawn at e2 and white bishop at g2. White rook at a1, white knight at b1, white bishop at c1, white king at e1 and white rook at f1. White queenside is the only castle move available. Half move number is 2. Full move number is 18. White to move.