OCR
120 11 MULTIDIMENSIONAL EXPANSION OF THE ALGORYTHMICS... (b) BACKTRACK Figure 11.4. Key momentums from the Four queens AlgoRythmics choreography: (a) introductory dance; (b) non-attacking scene; (c) queen 3 is going to come back from the “hibernation mode” (queen 4 is dead on cell [4] [5]); (d) attacking scene; (e) first solution; (f) four-queen “victory dance”