r3kbnr/1Pp2p2/6pp/pN1p4/1n3p2/1R1P1N1R/1PPK1P2/3Q1B2 w q - 2 21
FEN state: r3kbnr/1Pp2p2/6pp/pN1p4/1n3p2/1R1P1N1R/1PPK1P2/3Q1B2 w q - 2 21 ; Best move: b7a8q
The current state of the chess board is: Black rook at a8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. White pawn at b7, black pawn at c7 and black pawn at f7. Black pawn at g6 and black pawn at h6. Black pawn at a5, white knight at b5 and black pawn at d5. Black knight at b4 and black pawn at f4. White rook at b3, white pawn at d3, white knight at f3 and white rook at h3. White pawn at b2, white pawn at c2, white king at d2 and white pawn at f2. White queen at d1 and white bishop at f1. Black queenside is the only castle move available. Half move number is 2. Full move number is 21. White to move.