rnbk2nr/3p4/1p2p3/1R3Npp/8/1qPPPPP1/3N2P1/2Q1KB1R w - - 0 21
FEN state: rnbk2nr/3p4/1p2p3/1R3Npp/8/1qPPPPP1/3N2P1/2Q1KB1R w - - 0 21 ; Best move: d2b3
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at d8, black knight at g8 and black rook at h8. Black pawn at d7. Black pawn at b6 and black pawn at e6. White rook at b5, white knight at f5, black pawn at g5 and black pawn at h5. Black queen at b3, white pawn at c3, white pawn at d3, white pawn at e3, white pawn at f3 and white pawn at g3. White knight at d2 and white pawn at g2. White queen at c1, white king at e1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. White to move.