[Retros] rights & ocassions / not answering Andrew anymore

Nicolas Dupont Nicolas.Dupont at univ-lille1.fr
Wed Jun 4 21:48:53 EDT 2014

> If this is not difficult [...]

Condition: a piece (King excluded) may give check only after his fourth move.

W: Kc3 Ra1 Pa2 B: Kc1 Sb2

1.Rb1 2.Ra1 3.Rb1 4.Ra1#

No solution with 3R.

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