1rbq1kn1/1Q3ppr/2p5/2Ppp1bp/pB1P1P2/2N3PP/P1nNP3/R2K1BR1 w - - 0 21
FEN state: 1rbq1kn1/1Q3ppr/2p5/2Ppp1bp/pB1P1P2/2N3PP/P1nNP3/R2K1BR1 w - - 0 21 ; Best move: b7b8
The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8, black king at f8 and black knight at g8. White queen at b7, black pawn at f7, black pawn at g7 and black rook at h7. Black pawn at c6. White pawn at c5, black pawn at d5, black pawn at e5, black bishop at g5 and black pawn at h5. Black pawn at a4, white bishop at b4, white pawn at d4 and white pawn at f4. White knight at c3, white pawn at g3 and white pawn at h3. White pawn at a2, black knight at c2, white knight at d2 and white pawn at e2. White rook at a1, white king at d1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. White to move.