r1bQ1b2/pp1npkpr/n6p/2pp1p2/2P2PP1/Nq1PP1K1/P6P/R4BNR w - - 4 15
FEN state: r1bQ1b2/pp1npkpr/n6p/2pp1p2/2P2PP1/Nq1PP1K1/P6P/R4BNR w - - 4 15 ; Best move: a2b3
The current state of the chess board is: Black rook at a8, black bishop at c8, white queen at d8 and black bishop at f8. Black pawn at a7, black pawn at b7, black knight at d7, black pawn at e7, black king at f7, black pawn at g7 and black rook at h7. Black knight at a6 and black pawn at h6. Black pawn at c5, black pawn at d5 and black pawn at f5. White pawn at c4, white pawn at f4 and white pawn at g4. White knight at a3, black queen at b3, white pawn at d3, white pawn at e3 and white king at g3. White pawn at a2 and white pawn at h2. White rook at a1, white bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 4. Full move number is 15. White to move.