Peter Harris (South Africa)
Original Problems, Julia’s Fairies – 2013 (I): January – April
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No.266 by Peter Harris – Surprising promotions in the series of white moves only! (JV)
Chameleon Chess: All pieces on the board which are displayed as orthodox Q, R, B, S, are Chameleons. A Pawn can promote only in Chameleon-pieces.
Chameleon: On completing a move, a Chameleon (from classical standard type) changes into another piece, in the sequence Q-S-B-R-Q… Promotion may be to a chameleon at any stage in the cycle.
Ultra-Patrol Chess – A piece can move, capture or give check only if it is observed by a piece of its own side.
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.
Locust (L): moves on Q-lines but only by capturing an enemy unit, arriving on the square immediately beyond that unit, which must be vacant.
No.266 Peter Harris
с) remove LOc7, ser-#10
Solutions: (click to show/hide)
a) 1.Qa1-e5=S 2.Se5-d7=B[+wPe5] 3.Bd7-c8=R[+wPd7] 4.d7-d8=L 5.Ld8xg8-h8 6.e5xf6 7.Lh8xh7-h6 #
b) 1.Qa1-a2=S 2.Sa2-c1=B[+wPa2] 3.Bc1-b2=R 4.Rb2-c2=Q[+wPb2] 5.Qc2xh7=S[+wPc2] 6.Sh7xf6=B[+wPh7] 7.h7xg8=S #
c) 1.Kb1-a2 2.Ka2-b1[+wPa2] 3.a2-a4 4.a4-a5 5.a5-a6 6.a6-a7 7.a7-a8=Q 8.Qa8xg8=S 9.Qa1xf6=S 10.Sf6xh7=B[+wPf6] #