Chess problem details
 Chess problem diagram
Category: Fairy
Type: ser-==n
Stipulation(s): ser-==101
Magazine: Bulletin 19, 31.12.2020, Pr. T514
Year of Publishing: 2020
Sentinelles Pion adverse
Symmetry Circe
Grid special
Solution: Click here for full details...

1.LO×f3-e4(+g2) 2.LO×g2-h1(b7;+e4) 3.LO×e4-d5 4.LO×d2-d1(+d5)
5.LO×d5-d6(e4) 6.LO×d7-d8(+d6) 7.LO×d6-d5(e3) 8.LO×e4-f3(d5)
9.LO×e2-d1(Sd7;+f3) 10.LO×f3-g4 11.LO×d7-c8(Ge2;+g4)
12.LO×b7-a6(g2) 13.LO×c6-d6(LOf3;+a6) 14.LO×f6-g6(+d6)
15.LO×d6-c6(+g6) 16.LO×d5-e4(+c6) 17.LO×e7-e8(Gd2;+e4)
18.LO×g6-h5(b3) 19.LO×c5-b5(f4) 20.LO×c6-d7(+b5) 21.LO×g4-h3(+d7)
22.LO×g2-f1(b7) 23.LO×e2-d3 24.LO×e4-f5(d5) 25.LO×d5-c5(e4)
26.LO×e3-f2(d6) 27.LO×d2-c2(Ge7) 28.LO×b3-a4(g6) 29.LO×b5-c6(g4)
30.LO×d7-e8(e2) 31.LO×e7-e6(Gd2) 32.LO×g6-h6(b3)
33.LO×f4-e3(c5) 34.LO×f3-g3(LOc6) 35.LO×d6-c7(e3) 36.LO×b7-a7(g2)
37.LO×a6-a5(h3)  38.LO×c5-d5(f4) 39.LO×d2-d1(Ge7) 40.LO×e2-f3(d7)
41.LO×g2-h1(b7) 42.LO×h3-h4(a6)  43.LO×e7-d8(Gd2) 44.LO×d7-d6(e2)
45.LO×f4-g3(c5) 46.LO×e3-d3(d6) 47.LO×d2-d1(Ge7) 48.LO×b3-a4(g6)
49.LO×a6-a7(h3) 50.LO×b7-c7(g2) 51.LO×e7-f7(Gd2) 52.LO×g6-h5(b3)
53.LO×g4-f3(b5) 54.LO×e4-d5(+f3) 55.LO×d2-d1(Ge7) 56.LO×d6-d7(e3)
57.LO×e7-f7(Gd2)  58.LO×f3

T514: It’s clear after the first moves that the right possibility of putting the white locust in the final position is on the b-column (not on the 2nd row, nor on the diagonal b1-h7). The initial moves release the fields to create pairs of fields for Symmetric Circe rebirth, especially d2 - e7, d7 - e2, c6 - f3, b7 - g2 and others. Releasing one field from a pair is important not only for the functioning ofthe Symmetric Circe, but also for moving the white locust by entering these fields. Field d2 can block the grasshopper “able to move”, because by its departure it leaves behind a white pawn. It gives check to the black king. Release of fields for Symmetric Circe rebirth circuits: f3 (immediately on the first move), g2 (2.Le4×g2-h1 (Pb7; +Pe4)), d2(4.Ld5×d2-d1 (+Pd5)), d7 (6.Ld6×d7-d8 (+Pd6)), e2 (23.Lf1×e2-d3). (Author)



© Jaroslav Stun, 2007, Voniak Chess dBase