Original Problems, Julia’s Fairies – 2013 (III): September- December
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No.437 by Paul Rãican – Another interesting and difficult PG-play with Sentinels. (JV)
Sentinels: When a piece (Ks included but not pawns) moves, a pawn of the same colour appears on the vacated square unless that square is on the first or eighth ranks or there are 8 pawns of that colour on the board already.
No.437 Paul Rãican
PG 11 (11+15) С-
Solution: (click to show/hide)
1.Sh3 d6 2.Rg1 Bxh3 3.gh3 g6 4.Rxg6 Bg7 5.Rxd6 Bxb2[pg7] 6.Sa3 Bxa3[pb2] 7.Rb1 bc1=S 8.Rb3 Sxe2 9.Qxe2 Bxd6[pa3] 10.Qxe7+[pe2] Bxe7[pd6] 11.Rxa3[pb3] Bf8[pe7].
S-Ceriani-Frolkin, bB-circuit. (Author)