MESON Chess Problem Database

Problem Display
PID: 245513 (8/3p4/4k3/1K2N1Q1/R7/8/8/7B w - - 0 1)

Shumarin, Vladimir Pavlovich

Kudesnik, 2003

8/3p4/4k3/1K2N1Q1/R7/8/8/7B

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...d5
      • 2.Ra6#
  • Tries
    • 1.Kc5?
      • threat
        • 2.Bd5#
      • 1...d5
        • 2.Bxd5#
        • 2.Ra6#
      • 1...d6+!
    • 1.Rc4?
      • 1...Kd6
        • 2.Qf6#
      • 1...d5
        • 2.Rc6#
      • 1...d6!
    • 1.Rd4?
      • 1...d6
        • 2.Bd5#
      • 1...d5!
    • 1.Ra8?
      • 1...d6
        • 2.Re8#
      • 1...d5
        • 2.Ra6#
      • 1...Kd6!
  • Keys
    • 1.Ra7!
      • 1...Kd6
        • 2.Qf6#
      • 1...d6
        • 2.Re7#
      • 1...d5
        • 2.Ra6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);N_GUARD::R(B)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Threat
        • B(A)
      • Refutation
        • P(b);CHECK
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT::QAR2(E)
        • P(b);N_GUARD::R(B)
      • Refutation
        • P(b);
    • Try
      • R(B);
      • Vars
        • P(b);SBLOCK::B(A)
      • Refutation
        • P(b);
    • Try
      • R(B);
      • Vars
        • P(b);SBLOCK::R(B)
        • P(b);N_GUARD::R(B)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • R(B);
    • Vars
      • K(a);P-FLIGHT::QAR2(E)
      • P(b);OGATE,SBLOCK::R1(B)
      • P(b);N_GUARD::R(B)
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