No.504 (NG)

No.504 by Norbert Geissler – A four-men with excellent neutral AUW! Warm welcome to Norbert – master of miniature genre with a tens of beautiful problems created, and also one of the brightest developers in Popeye-team! (JV)

Definitions:

Take & Make: Having captured, a unit must immediately, as part of its move, play a non-capturing move in imitation of the captured unit from the capture-square. If no such move is available, the capture is illegal. Promotion by capture occurs only when a pawn arrives on the promotion rank as the result of a take&make move. Checks are as in normal chess: after the notional capture of the checked K, the checking unit does not move away from the King’s square.

Symmetry Circe: As Circe except that the rebirth square for the captured unit is that which lies at an equal distance (in a straight line) beyond the midpoint of the board. Thus a capture on c4 produces a rebirth on f5, a capture on g1 produces a rebirth on b8, and so on. Strictly speaking there are of course other types of symmetry: this one is rotational.

Circe: Captured units (not Ks) reappear on their game-array squares, of the same colour in the case of pieces, on the file of capture in the case of pawns, and on the promotion square of the file of capture in the case of fairy pieces. If the rebirth square is occupied the capture is normal.

No.504 Norbert Geissler Germany original-24.02.2014   h#2              b) wKf7→g5       (1+1+2) Take & Make Symmetry Circe     Solutions: (click to show/hide)   a) 1.nPf1=nR+ nRh1 2.K×h1-h7[+nRa8] nP×a8-f8=nS[+nRh1] # b) 1.K×f2-f3[+nPc7] nPb8=nQ 2.nQd8+ nP×d8-a8=nB[+nQe1] # (C+ by WinChloe 3.24 and Popeye 4.65)