MESON Chess Problem Database

Problem Display
PID: 103544 (3B4/p4p2/p1Bk1P2/N4pN1/1p1P1p2/1PpKpP2/2RPR3/8 w - - 0 1)

de Gaetano, G

La Scacchiera, 1953

3B4/p4p2/p1Bk1P2/N4pN1/1p1P1p2/1PpKpP2/2RPR3/8

#2

12 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...cxd2
      • 2.Sb7#
    • 1...exd2
      • 2.Sxf7#
  • Tries
    • 1.Kc4?
      • 1...exd2
        • 2.Sxf7#
      • 1...cxd2!
    • 1.Bb6?
      • 1...cxd2
        • 2.Sb7#
      • 1...exd2
        • 2.Sxf7#
      • 1...axb6!
    • 1.Rc1?
      • 1...cxd2
        • 2.Sb7#
      • 1...exd2
        • 2.Sxf7#
      • 1...c2!
    • 1.Re1?
      • 1...cxd2
        • 2.Sb7#
      • 1...exd2
        • 2.Sxf7#
      • 1...e2!
  • Keys
    • 1.d5!
      • 1...Kc5
        • 2.Sb7#
      • 1...Ke5
        • 2.Sc4#
        • 2.Sxf7#
      • 1...cxd2
        • 2.Sxf7#
      • 1...exd2
        • 2.Sb7#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(a);XP(B)::S(H)
    • P(b);XP(B)::S(I),XP(i)
  • Tries
    • Try
      • K(E);S_FLIGHT
      • Vars
        • P(b);XP(B)::S(I),XP(i)
      • Refutation
        • P(a);XP(B)
    • Try
      • B(L);
      • Vars
        • P(a);XP(B)::S(H)
        • P(b);XP(B)::S(I),XP(i)
      • Refutation
        • P(h);XB(L)
    • Try
      • R(A);
      • Vars
        • P(a);XP(B)::S(H)
        • P(b);XP(B)::S(I),XP(i)
      • Refutation
        • P(a);
    • Try
      • R(C);
      • Vars
        • P(a);XP(B)::S(H)
        • P(b);XP(B)::S(I),XP(i)
      • Refutation
        • P(b);
  • Actual
    • P(G);
    • Vars
      • K(g);P_SPINP(a),S_FLIGHT::S(H)
      • P(a);XP(B)::S(I),XP(i)
      • P(b);XP(B)::S(H)
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