MESON Chess Problem Database

Problem Display
PID: 269320 (7Q/8/8/1K6/4kB2/4P3/3R4/8 w - - 0 1)

Petrasinovic, Petrasin

Seven Chess Notes, 2020

7Q/8/8/1K6/4kB2/4P3/3R4/8

#2

5 + 1

SOLUTION

  • SOUND
  • Tries
    • 1.Rf2?
      • 1...Kd3
        • 2.Qd4#
      • 1...Kd5
        • 2.Qe5#
      • 1...Kf5!
    • 1.Rd5?
      • threat
        • 2.Qh1#
      • 1...Kxd5
        • 2.Qe5#
      • 1...Kf3!
    • 1.Qg7?
      • 1...Kf3
        • 2.Qg2#
      • 1...Kf5!
    • 1.Qh2?
      • 1...Kf3
        • 2.Qg2#
      • 1...Kf5!
    • 1.Qg8?
      • threat
        • 2.Qd5#
      • 1...Kf3
        • 2.Qg2#
      • 1...Kf5!
  • Keys
    • 1.Rg2!
      • 1...Kd3
        • 2.Qd4#
      • 1...Kf3
        • 2.Qa8#
      • 1...Kd5
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAR1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);
      • Threat
        • QAB(E)
      • Vars
        • K(a);N_GUARD,S_FLIGHT,XR(A)::QAR1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Threat
        • QAB1(E)
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(A);
    • Vars
      • K(a);N_GUARD,S_FLIGHT::QAR1(E)
      • K(a);N_GUARD,S_FLIGHT::QAB(E)
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