r1b3qr/ppBpNk1p/n7/4pP1P/1P4p1/3P1P2/P1P1K1P1/1R1Q1BbR w - - 0 21
FEN state: r1b3qr/ppBpNk1p/n7/4pP1P/1P4p1/3P1P2/P1P1K1P1/1R1Q1BbR w - - 0 21 ; Best move: e7g8
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at g8 and black rook at h8. Black pawn at a7, black pawn at b7, white bishop at c7, black pawn at d7, white knight at e7, black king at f7 and black pawn at h7. Black knight at a6. Black pawn at e5, white pawn at f5 and white pawn at h5. White pawn at b4 and black pawn at g4. White pawn at d3 and white pawn at f3. White pawn at a2, white pawn at c2, white king at e2 and white pawn at g2. White rook at b1, white queen at d1, white bishop at f1, black bishop at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. White to move.