MESON Chess Problem Database

Problem Display
PID: 232303 (5B1Q/1RNR4/2k3K1/8/8/8/8/8 w - - 0 1)

Diaz, Walter Alejandro

Kudesnik, 2014

5B1Q/1RNR4/2k3K1/8/8/8/8/8

#2

6 + 1

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Ba3?
      • 1...Kxd7
        • 2.Qe8#
      • 1...Kxb7!
    • 1.Bb4?
      • 1...Kxd7
        • 2.Qe8#
      • 1...Kxb7!
    • 1.Be7?
      • 1...Kxd7
        • 2.Qe8#
      • 1...Kxb7!
    • 1.Rd6+?
      • 1...Kc5
        • 2.Qc3#
        • 2.Qd4#
      • 1...Kxb7!
    • 1.Qe5?
      • threat
        • 2.Qb5#
        • 2.Qd5#
      • 1...Kxd7
        • 2.Qe8#
      • 1...Kxb7!
  • Keys
    • 1.Bc5!
      • 1...Kxc5
        • 2.Qc3#
      • 1...Kxb7
        • 2.Qa8#
      • 1...Kxd7
        • 2.Qe8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(E);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XR(D)::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • B(E);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XR(D)::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • B(E);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XR(D)::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • R(D);CHECK
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • Q(F);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);OGATEB,S_FLIGHT,XR(D)::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
  • Actual
    • B(E);
    • Vars
      • K(a);OGATEB,P-FLIGHT,XB(E)::QAR2(F)
      • K(a);OGATEB,S_FLIGHT,XR(B)::QAB1(F)
      • K(a);OGATEB,S_FLIGHT,XR(D)::QAB1(F)
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