# No.901 (SE)

 No.901 Stephen Emmerson (England) Original ProblemsJF Retro and PG problems 2015-2016    →Previous ; →Next ; →List 2015(II) Please send your original fairy problems to: julia@juliasfairies.com

No.901 by Stephen Emmerson – Impossible position in orthodox. PG in two phases with a seldom-used fairy condition Anti-Circe Equipollents

A new look of animated solutions uses functions written by Stephen Emmerson (updated page, 30.09.2015). (JV)

Definition:

Anti-Circe Equipollents: When capturing, the piece is reborn as far on from the square of capture as it has moved to get there, e.g. wPb3xc4-d5 (the P is reborn on d5 as b3-c4 is the same vector as c4-d5). The path from the capture to the rebirth square need not be clear, but the rebirth square must be on the board and clear. Pawns and Kings included.

 No.901 Stephen EmmersonEnglandoriginal – 25.09.2015 Solutions: (click to show/hide) white Bf1c1 Ke1 Qd1 Pa2b2c2d2e2f2g2h2 Sg1b1 Rh1a1 black Bf8c8 Ke8 Qd8 Ph7g7f7e7d7c7b7a7 Sg8b8 Rh8a8 PG4.5          b) Pd7→d5         (16+15)Anti-Circe Equipollents a) 1.Sb1-c3 e7-e5 2.Sc3-e4 Qd8-f6 3.Se4-g5 e5-e4 4.Sg5*e4[wSe4->c3] Qf6-c6 5.Sc3-b1 {dia} b) 1.Sg1-f3 d7-d5 2.Sf3-e5 Qd8-d6 3.Se5-d7 e7-e5 4.Sd7*e5[wSe5->f3] Qd6-c6 5.Sf3-g1 {dia (C+ by Popeye 4.73) } Knight return trips. White home setup after odd number of moves. Only e7-e5 repeated. Neat discriminator forces different knight. (Author)