MESON Chess Problem Database

Problem Display
PID: 198447 (1Q6/8/5P2/5RBR/6k1/3KP3/6N1/6N1 w - - 0 1)

Gronroos, Mikael

Suomen Shakki, 1986

1Q6/8/5P2/5RBR/6k1/3KP3/6N1/6N1

#2

9 + 1

5454 Near Snap 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Qb7?
      • threat
        • 2.Qf3#
      • 1...Kg3
        • 2.Qf3#
      • 1...Kxf5
        • 2.Qe4#
      • 1...Kxh5!
    • 1.Qa8?
      • threat
        • 2.Qf3#
      • 1...Kg3
        • 2.Qf3#
      • 1...Kxf5
        • 2.Qe4#
      • 1...Kxh5!
    • 1.Qe8?
      • 1...Kxf5
        • 2.Qe4#
      • 1...Kg3!
  • Keys
    • 1.Qg8!
      • threat
        • 2.Bf4#
        • 2.Bh4#
        • 2.Bh6#
      • 1...Kg3
        • 2.Bh6#
      • 1...Kxf5
        • 2.Bh4#
      • 1...Kxh5
        • 2.Bf4#

Anticipated by 104647(1979)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(I);
      • Threat
        • QAB1(I)
      • Vars
        • K(a);P-FLIGHT::QAR1(I)
        • K(a);S_FLIGHT,XR(E)::QAB1(I)
      • Refutation
        • K(a);S_FLIGHT,XR(G)
    • Try
      • Q(I);
      • Threat
        • QAB1(I)
      • Vars
        • K(a);P-FLIGHT::QAR1(I)
        • K(a);S_FLIGHT,XR(E)::QAB1(I)
      • Refutation
        • K(a);S_FLIGHT,XR(G)
    • Try
      • Q(I);
      • Vars
        • K(a);S_FLIGHT,XR(E)::QAB1(I)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(I);
    • Threat
      • DUALS(3)
    • Vars
      • K(a);P-FLIGHT::QAR(I)+B(F)
      • K(a);S_FLIGHT,XR(E)::R(G)+B(F)
      • K(a);S_FLIGHT,XR(G)::R(E)+B(F)
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