Thank you Alexander for your comment, you are right, we did not pay attention to this!
Thank you Anatoly
К сожалению в третьем решении версии №1334.1 правило Breton adverse не нужно.
Position was hard, but the game is now flawless! I offered Yulia to publish it in collaboration Anatoly Stepochkin +…
1.b3! Q×b3 2.Sd8 Qg8 3.Be6 Ra3 4.Bd7 Qb3 5.Sf7 Qh3 6.g3 R×g3 7.Sf×e5‡
This is heavier, but it works : White : Kc8 Bd7 Sf7g6 Pf5b2g2 Black : Kg4 Qg3 Rh5h3 Ba8h2 Sf6b5…
George's version is more economical, but the attempt was lost. Анатолий Стёпочкин.
Never mind, was focusing only on the 1-move setplay.
But the try is missing in this setting.
Joost, you may - easily - have switchbacks with your idea : White : Ke8 Sd4 Pg6b2 Black : Kg8…