MESON Chess Problem Database

Problem Display
PID: 271719 (8/2K5/5R2/8/3Pk3/7P/8/3N2Q1 w - - 0 1)

Petrasinovic, Petrasin

Seven Chess Notes, 2023

8/2K5/5R2/8/3Pk3/7P/8/3N2Q1

#2

6 + 1

SOLUTION

  • SOUND
  • Tries
    • 1.Rf3?
      • 1...Kxf3
        • 2.Qg4#
      • 1...Kd5!
    • 1.Rf4+?
      • 1...Kxf4
        • 2.Qg4#
      • 1...Kd5
        • 2.Qg8#
      • 1...Kd3!
    • 1.Rd6?
      • 1...Kf3
        • 2.Qg4#
      • 1...Kf4
        • 2.Qg4#
      • 1...Kf5
        • 2.Qg4#
      • 1...Kd3!
    • 1.Qg4+?
      • 1...Kd5
        • 2.Se3#
      • 1...Kd3!
  • Keys
    • 1.Rc6!
      • 1...Kd3
        • 2.Qe3#
      • 1...Kf3
        • 2.Qg4#
      • 1...Kf4
        • 2.Qg4#
      • 1...Kd5
        • 2.Sc3#
      • 1...Kf5
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);
      • Vars
        • K(a);N_GUARD,S_FLIGHT,XR(E)::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(E);CHECK
      • Vars
        • K(a);N_GUARD,P-FLIGHT,XR(E)::QAR1(B)
        • K(a);N_GUARD,S_FLIGHT::QAB(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(E);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB1(B)
        • K(a);N_GUARD,P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);N_GUARD,S_FLIGHT::S(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(E);
    • Vars
      • K(a);N_GUARD,S_FLIGHT::QAR1(B)
      • K(a);N_GUARD,S_FLIGHT::QAB1(B)
      • K(a);N_GUARD,P-FLIGHT::QAR1(B)
      • K(a);N_GUARD,S_FLIGHT::S(A)
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