rnbk1r2/1ppp3p/4p2n/p4pp1/P1Pq4/RP4PP/1B1PPPB1/3QK1NR b K - 4 13
FEN state: rnbk1r2/1ppp3p/4p2n/p4pp1/P1Pq4/RP4PP/1B1PPPB1/3QK1NR b K - 4 13 ; Best move: d4b2
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at d8 and black rook at f8. Black pawn at b7, black pawn at c7, black pawn at d7 and black pawn at h7. Black pawn at e6 and black knight at h6. Black pawn at a5, black pawn at f5 and black pawn at g5. White pawn at a4, white pawn at c4 and black queen at d4. White rook at a3, white pawn at b3, white pawn at g3 and white pawn at h3. White bishop at b2, white pawn at d2, white pawn at e2, white pawn at f2 and white bishop at g2. White queen at d1, white king at e1, white knight at g1 and white rook at h1. White kingside is the only castle move available. Half move number is 4. Full move number is 13. Black to move.