# No.1357 (GW&DB)

 No.1357 Günther Weeth (Germany) & Dmitrij Baibikov (Israel) Original Retro & PG problems JF – R2017-18

Definitions: (click to show/hide)

 No.1357 Günther Weeth & Dmitrij Baibikov Germany / Israel original – 23.12.2018 Solution: (click to show/hide) white Ke1 Bg5g8 Sf5 black Kb7 Rd5 Ba1 Sf6g1 Pa7c2c4c7 -25 & #1    Proca Retractor       (4+9) Anti-Circe {no animation for Defensive Retractors (JV)} 1.Ke1:Pd2[Ke1], d3-d2+ 2.Ke2:Bf2[Ke1], d4-d3+ 3.Ke1-e2, Be3-f2+ 4.Kb3:Rb4[Ke1], Ra4-b4+ 5.Kc3-b3, a2-a1=B+ 6.Kd2-c3, Bf2-e3+ 7.Ke1-d2, Be3-f2+ 8.Kb5:Qa5[Ke1], Rd8-d5+ 9.Kb4-b5, Ra3-b4+ 10.Kc3-b4, Ra4-a3+ 11.Kd2-c3, Bf2-e3+ 12.Ke1-d2, Be3-f2+ 13.Kb5:Ba6[Ke1], Kc8-b7+ 14.Kb4-b5, Ra3-a4+ 15.Kc3-b4, Ra4-a3+ 16.Kd2-c3, Bf2-e3+ 17.Ke1-d2, Be3-f2+ 18.Kb4:Pb5[Ke1] !, Ra3-a4+ 19.Kc3-b4, Ra4-a3+ 20.Kd2-c3, Bf2-e3+ 21.Ke1-d2, Be3-f2+ 22.Kh7:Rh8[Ke1], 0-0-0+ 23.Kh6-h7, Sh7-f6+ 24.Be7-g5, Bf2-e3+ 25.Be6-g8 – fw.1.Sg7 # Please note: the uncapture 18.Kb4:Pb5[Ke1] serves the purpose of refuting 22…., Rg4:Xh4[Rh8]+ due to the fact that now this parry is illegal. The bPh7 having promoted on g1 for letting pass the wPh2 for capture-free promotion on h8 needs one capture on the g-file. So the balance proves that the rook on h8 as well as the rook on a8 cannot make use of a white unit for uncapturing. (Authors)