r1bqk3/p3p2r/np1p1p1b/1p2P1Pp/PQP5/1P1P1NP1/1B2BP1n/3RK1R1 b q - 3 22
FEN state: r1bqk3/p3p2r/np1p1p1b/1p2P1Pp/PQP5/1P1P1NP1/1B2BP1n/3RK1R1 b q - 3 22 ; Best move: a6b4
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8 and black king at e8. Black pawn at a7, black pawn at e7 and black rook at h7. Black knight at a6, black pawn at b6, black pawn at d6, black pawn at f6 and black bishop at h6. Black pawn at b5, white pawn at e5, white pawn at g5 and black pawn at h5. White pawn at a4, white queen at b4 and white pawn at c4. White pawn at b3, white pawn at d3, white knight at f3 and white pawn at g3. White bishop at b2, white bishop at e2, white pawn at f2 and black knight at h2. White rook at d1, white king at e1 and white rook at g1. Black queenside is the only castle move available. Half move number is 3. Full move number is 22. Black to move.