MESON Chess Problem Database

Problem Display
PID: 245539 (4R3/1N6/8/1kB4Q/1N6/5K2/8/8 w - - 0 1)

Shumarin, Vladimir Pavlovich

Kudesnik, 2007

4R3/1N6/8/1kB4Q/1N6/5K2/8/8

#2

6 + 1

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sd6+?
      • 1...Ka5
        • 2.Ra8#
      • 1...Ka4!
    • 1.Qg6?
      • threat
        • 2.Qa6#
      • 1...Kc4
        • 2.Qd3#
      • 1...Ka4!
    • 1.Qf5?
      • 1...Kc4
        • 2.Qd3#
      • 1...Ka4!
    • 1.Qh7?
      • 1...Kc4
        • 2.Qd3#
      • 1...Ka4!
  • Keys
    • 1.Re3!
      • 1...Ka4
        • 2.Qe8#
      • 1...Kc4
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(a);P-FLIGHT::R(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);
      • Threat
        • QAB1(D)
      • Vars
        • K(a);S_FLIGHT::QAB1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(a);S_FLIGHT::QAB1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(a);S_FLIGHT::QAB1(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(F);
    • Vars
      • K(a);S_FLIGHT::QAB(D)
      • K(a);S_FLIGHT::S(E)
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