rofChade and AllieStein promote to division 2. AllieStein continues to move up the divisions in season 15. It played with a known bug this division, in which it did not look at lines where the opponent castles. This bug is now fixed for division 2. rofChade started season 14 in division 4, and this season it won division 3.
Pedone and Nemorino are relegated to division 4. This is the second season in a row that Nemorino starts in division 4, then promotes to division 3 and then returns to division 4.
Division 3 was very tight, there were no engines that were clearly better or worse than the others. All engines finished with at least 3 wins and 2 losses and it took a while for the rankings to stablilize. The fight against relegation continued until the very last game.
The engines that will play in division 2: Fritz, Ginkgo, Xiphos, Booot, Nirvana, ChessBrain, rofChade, AllieStein.
Action in the last RR
After RR3: rofChade +4, AllieStein +3, Arasan +2, Gull 0, Nemorino, Vajolet and Pedone -2, Texel -3. rofChade, AllieStein and Arasan have a good chance of promotion, Nemorino, Vajolet, Pedone and Texel are fighting against relegation.
In rounds 22-23 Pedone lost twice to rofChade and AllieStein, while Texel won twice against Arasan and Nemorino. Arasan also beat Vajolet.
5 rounds to go: rofChade +5, AllieStein +4, Arasan +2, Gull 0, Texel -1, Nemorino and Vajolet -3, Pedone -4. Arasan is losing touch with the leaders, Texel improved its position.
In rounds 24-25 Nemorino lost twice against Vajolet and Pedone, its rivals in the bottom of the table. Texel beat Gull and lost to AllieStein, it remains in the middle of the table together with Gull. rofChade beat Arasan in a game where Arasan sacrificed pieces to get a pawn on the 7th rank, but the gamble failed. Arasan is 2 points behind the leaders.
3 rounds to go: rofChade +6, AllieStein +5, Arasan +1, Gull and Texel -1, Vajolet -2, Pedone -3, Nemorino -5. Arasan is probably not going to catch the leaders, rofChade and AllieStein will probably promote. The bottom is still tight, Pedone has a good chance of escaping relegation since its remaining games are against lower ranked opponents. Nemorino is almost surely going to be last. The last game of the division is Pedone-Vajolet in a King's Gambit, it might determine which engine relegates in the end.
There were 4 draws in round 26. In round 27 Texel beat Pedone, and as a result Pedone could only escape relegation if it beat Vajolet in the last game. rofChade beat Gull in black, Gull and Vajolet were tied with score -2 one point away from Pedone. However, Gull was safe due to better head to head results against Pedone and Vajolet. Arasan beat Nemorino, too late to catch up with the leaders. In the last round Arasan beat Gull, setting up a possible three-way tie with Vajolet and Pedone. rofChade beat Texel, with no impact on the table. The last game turned out to be uninteresting, Vajolet had a small eval advantage, and Pedone didn't come close to winning. All the tiebreak speculation became irrelevent and Pedone joined Nemorino at the bottom of the table.
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