The games played by LCZeroCPU are not taken into account for the qualification race. This does not change the results significantly (e.g. Wasp, Topple and Asymptote lose 0.5 points). The qualifiers for league 2 are: ScorpioNN, Stoofvlees, Marvin, Wasp, Topple and chess22k.
ScorpioNN and Topple improved a lot, in season 15 they were weak in divisions 4a and 4b.
Two NN engines enter the main TCEC draw (Stoofvlees and ScorpioNN). Recall that in season 15 AllieStein started from the bottom and reached the premier division. Will we see a repeat in this season?
League 2 will start soon, the qualifiers will join Fritz, Nirvana, Arasan, Texel, Vajolet, Gull, Pedone, Nemorino, RubiChess and Pirarucu. The top 4 will advance to league 1.
Notable games
Game 183, Marvin - Stoofvlees: Marvin was a pawn up in a QRN vs QRB position. Stoofvlees gave a second pawn and attacked the white king, but it wasn't strong enough. Marvin countered and won a rook and the game. First loss for Stoofvlees.
Game 188, chess22k - Asymptote: All pieces were on the board until move 39. The position opened, chess22k gave a pawn and created a central passer. Asymptote gave a rook for a knight to capture the passer, chess22k won the RN vs BN ending. With this win chess22k is back in the qualification race.
After 24 rounds the top of the table was (ignoring LCZeroCPU games): ScorpioNN +17, Stoofvlees +13, Wasp +11, Marvin +9, Topple +6, Asymptote +4, chess22k +4, Winter +2, Rodent -1, The Baron -1.
Game 226, Winter - ChessFighterNN: The game reached a drawn rook ending. ChessFighterNN lost two pawns and then blundered on move 109 and lost the game.
Game 230, Asymptote - Marvin: Asymptote was up a pawn from the opening. Marvin gave a second pawn and attacked the white king without success. The game reached a RN vs RN ending and the two pawns gave Asymptote the win.
Game 239, Minic - Asymptote: Minic was a pawn down in a QRR vs QRR position. Asymptote ignored the danger to its king when Minic put all its pieces on the h file. Minic traded RR for Q and reached a winning endgame.
After 28 rounds the top of the table was (ignoring LCZeroCPU games): ScorpioNN +21, Stoofvlees +17, Wasp +11, Marvin +10, chess22k +6, Topple +5, Asymptote +4, Winter +2.
Game 271, Tucano - Winter: Winter had an eval advantage of 1 in a RRB vs RRN position, but only managed to capture a pawn and Tucano held the draw.
Game 273, The Baron - Asymptote: Asymptote missed a win in a rook ending two pawns up.
After 31 rounds the top of the table was (ignoring LCZeroCPU games): ScorpioNN +24, Stoofvlees +20, Wasp +12, Marvin +12, chess22k +7, Topple +5, Winter +3, Asymptote +2.
Winter has only 2 games left. chess22k has to face the two leaders but has a 2 point advantage and will probably stay in the top 6. Topple has easier games but has to face Asymptote.
Game 284, chess22k - ScorpioNN: chess22k had an eval advantage from the start, ScorpioNN equalized and achieved a better position, but it let chess22k exchange pieces and lost its chance. The game reached a drawn kings and pawns position.
Game 287, Asymptote - Topple: Asymptote gave a bishop for pawns, Topple reduced to a B vs BN position 3 pawns down. The extra piece was enough for a win.
After round 32 Asymptote is out of the qualification race, Topple is ahead of Winter by 1.5 points with two games left.
In round 33 Winter played black against Wasp. It managed to get an advantage but reached a drawn rook ending with a pawn up. Topple played white against Bagatur and won easily.
Winter is out and Topple is the last to qualify for league 2.
Game 301, Igel - ScorpioNN: In a drawn QRR vs QRR position Igel seemed to blunder, ScorpioNN reduced to a rook ending a pawn up. Evals suggested ScorpioNN was winning, but it couldn't find the right moves and settled for a draw.
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