000 00520nam a2200145 4500
999 _c13303
_d13303
008 190228b ||||| |||| 00| 0 eng d
022 _a0746-8342
082 _aDPer 510.5 C697 Jan 2012-Sept 2015 v. 43 & 46, n. 1-4
100 _aElran, Yossi.
_937196
245 _aRetrolife and the pawns neighbors
_cYossi Elran.
260 _aWashington D. C.:
_bMathematical Association of America,
_c©Jul 2012-Sept 2015.
300 _av43 n2, pages 147-151:
_billustrations;
_c28 cm.
650 _aPuzzles.
_937197
942 _2ddc
_cPER