rn1qkbr1/3ppp2/p4n2/5K2/4R1pP/p2P1p2/1PPN1Q2/5BNR w q - 0 23
FEN state: rn1qkbr1/3ppp2/p4n2/5K2/4R1pP/p2P1p2/1PPN1Q2/5BNR w q - 0 23 ; Best move: g1f3
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at e8, black bishop at f8 and black rook at g8. Black pawn at d7, black pawn at e7 and black pawn at f7. Black pawn at a6 and black knight at f6. White king at f5. White rook at e4, black pawn at g4 and white pawn at h4. Black pawn at a3, white pawn at d3 and black pawn at f3. White pawn at b2, white pawn at c2, white knight at d2 and white queen at f2. White bishop at f1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 0. Full move number is 23. White to move.