rn2r3/N2b2pR/1p1pp1k1/n1P2p2/P2P4/3BqPP1/1p1NQ1P1/R1B1K3 w Q - 1 23
FEN state: rn2r3/N2b2pR/1p1pp1k1/n1P2p2/P2P4/3BqPP1/1p1NQ1P1/R1B1K3 w Q - 1 23 ; Best move: c1b2
The current state of the chess board is: Black rook at a8, black knight at b8 and black rook at e8. White knight at a7, black bishop at d7, black pawn at g7 and white rook at h7. Black pawn at b6, black pawn at d6, black pawn at e6 and black king at g6. Black knight at a5, white pawn at c5 and black pawn at f5. White pawn at a4 and white pawn at d4. White bishop at d3, black queen at e3, white pawn at f3 and white pawn at g3. Black pawn at b2, white knight at d2, white queen at e2 and white pawn at g2. White rook at a1, white bishop at c1 and white king at e1. White queenside is the only castle move available. Half move number is 1. Full move number is 23. White to move.