(13.10.2015) Wonderful fairy problem by Krassimir Gandev with double mirror stalemate after 9 Locust promotions.

The problem was found cooked and the author makes version 613.1 which is with Bishops instead of Knights on the initial position.

1.Pb7xc6(+Pc7) Pc7-c8=L 2.Pc6xd5(+Pd7) Pd7-d8=L 

3.Pd5xe4(+Pe7) Pe7-e8=L 4.Pe4xf3(+Pf7) Pf7-f8=L

5.Pf3xg2(+Pg7) La8xg2-h1(+Pg2) 6.Pg2xh1=L Pg7-g8=L

7.Lh1xh2-h3(+Ph7) Ph7-h8=L 8.Lh3xb3-a3(+nPb7) nPb7-b8=nL

9.La3xa2-a1(+Pa7) Pa7-a8=L ==

DoppellPatt, Echo - Patt (Author)

Mirror Circe: Like Circe, but the rebirth square of a piece is the square occupied at the beginning of an orthodox game by a piece of the same kind and of the other side. Related to the square they occupied before the rebirth:Rooks, Bishops and Knights are reborn on the square of the same color;Pawns (including fairy Pawns) are reborn on the same file; other fairy pieces are reborn on the same file and on the promotion rank of the other side.

Locust: a piece which moves only to capture. It lands on the same squares as a grasshopper, but the arrival square must be empty, because the locust captures its hurdle.

Neutral piece: A unit with this characteristic may be regarded as of either colour by the side whose turn it is to play. Neutral pawns promote to neutral pieces.