rB2r2k/Q1nbpp1p/1p5b/1Npp2p1/P1P3P1/3nKP1B/1P2P2P/RN5R w - - 0 21
FEN state: rB2r2k/Q1nbpp1p/1p5b/1Npp2p1/P1P3P1/3nKP1B/1P2P2P/RN5R w - - 0 21 ; Best move: a7c7
The current state of the chess board is: Black rook at a8, white bishop at b8, black rook at e8 and black king at h8. White queen at a7, black knight at c7, black bishop at d7, black pawn at e7, black pawn at f7 and black pawn at h7. Black pawn at b6 and black bishop at h6. White knight at b5, black pawn at c5, black pawn at d5 and black pawn at g5. White pawn at a4, white pawn at c4 and white pawn at g4. Black knight at d3, white king at e3, white pawn at f3 and white bishop at h3. White pawn at b2, white pawn at e2 and white pawn at h2. White rook at a1, white knight at b1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. White to move.