1nb1kb1r/5r1p/6p1/pppp4/3P1p2/BPN1nK1P/P1P1PP1P/Q1R2BR1 b k - 0 21
FEN state: 1nb1kb1r/5r1p/6p1/pppp4/3P1p2/BPN1nK1P/P1P1PP1P/Q1R2BR1 b k - 0 21 ; Best move: e3f5
The current state of the chess board is: Black knight at b8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black rook at f7 and black pawn at h7. Black pawn at g6. Black pawn at a5, black pawn at b5, black pawn at c5 and black pawn at d5. White pawn at d4 and black pawn at f4. White bishop at a3, white pawn at b3, white knight at c3, black knight at e3, white king at f3 and white pawn at h3. White pawn at a2, white pawn at c2, white pawn at e2, white pawn at f2 and white pawn at h2. White queen at a1, white rook at c1, white bishop at f1 and white rook at g1. Black kingside is the only castle move available. Half move number is 0. Full move number is 21. Black to move.