r1bnk1nr/pp3pbp/3q2p1/4N1B1/2Bp1p1P/N6R/PPP3P1/R1QK4 b k - 3 21
FEN state: r1bnk1nr/pp3pbp/3q2p1/4N1B1/2Bp1p1P/N6R/PPP3P1/R1QK4 b k - 3 21 ; Best move: g7e5
The current state of the chess board is: Black rook at a8, black bishop at c8, black knight at d8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at f7, black bishop at g7 and black pawn at h7. Black queen at d6 and black pawn at g6. White knight at e5 and white bishop at g5. White bishop at c4, black pawn at d4, black pawn at f4 and white pawn at h4. White knight at a3 and white rook at h3. White pawn at a2, white pawn at b2, white pawn at c2 and white pawn at g2. White rook at a1, white queen at c1 and white king at d1. Black kingside is the only castle move available. Half move number is 3. Full move number is 21. Black to move.