r4b1r/pp1n1ppp/2pk3n/3p1b2/1P2pPP1/P1KP3P/2P1P1N1/R1BQ1BNR w - - 3 18
FEN state: r4b1r/pp1n1ppp/2pk3n/3p1b2/1P2pPP1/P1KP3P/2P1P1N1/R1BQ1BNR w - - 3 18 ; Best move: e2e3
The current state of the chess board is: Black rook at a8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black knight at d7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at c6, black king at d6 and black knight at h6. Black pawn at d5 and black bishop at f5. White pawn at b4, black pawn at e4, white pawn at f4 and white pawn at g4. White pawn at a3, white king at c3, white pawn at d3 and white pawn at h3. White pawn at c2, white pawn at e2 and white knight at g2. White rook at a1, white bishop at c1, white queen at d1, white bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 3. Full move number is 18. White to move.