MESON Chess Problem Database

Problem Display
PID: 149428 (1Q6/8/2BpP1N1/r2qr1p1/p1pNk3/R7/2K5/3R4 w - - 0 1)

Gockel, Hubert

The Problemist, 2012

1Q6/8/2BpP1N1/r2qr1p1/p1pNk3/R7/2K5/3R4

#2

8 + 8

SOLUTION

  • SOUND
  • Tries
    • 1.Qxd6?
      • threat
        • 2.Qxe5#
      • 1...Qxc6
        • 2.Re1#
      • 1...Rxe6
        • 2.Qxe6#
      • 1...Rf5!
    • 1.Qb4?
      • threat
        • 2.Qe1#
      • 1...c3
        • 2.Re1#
      • 1...Qxc6!
    • 1.Qh8?
      • threat
        • 2.Qh1#
      • 1...Rf5
        • 2.Re1#
      • 1...c3!
  • Keys
    • 1.Qf8!
      • threat
        • 2.Qf3#
      • 1...Rf5
        • 2.Qxf5#
      • 1...g4
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(H);XP(h)
      • Threat
        • QAR1(H),XR(f)
      • Vars
        • Q(e);N_SPINQ(e),XB(E)::R(A)
        • R(f);OGATE,XP(F)::QAR2(H),XR(f)
      • Refutation
        • R(f);
    • Try
      • Q(H);
      • Threat
        • QAR(H)
      • Vars
        • P(b);::R(A)
      • Refutation
        • Q(e);N_SPINQ(e),XB(E)
    • Try
      • Q(H);
      • Threat
        • QAB(H)
      • Vars
        • R(f);::R(A)
      • Refutation
        • P(b);
  • Actual
    • Q(H);
    • Threat
      • QAB1(H)
    • Vars
      • R(f);N_GUARD::QAB1(H),XR(f)
      • P(g);N_GUARD::QAR1(H)
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