MESON Chess Problem Database

Problem Display
PID: 259389 (8/2K5/4p3/3k4/5Q2/8/8/1bR5 w - - 0 1)

Smirnov, Valery Gennadevich

Buletin Problemistic, 1993

8/2K5/4p3/3k4/5Q2/8/8/1bR5

#2

3 + 3

15601 Albrecht-Leiss-Degener Collection 2022
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Qd6#
    • 1...e5
      • 2.Qc4#
  • Tries
    • 1.Re1?
      • threat
        • 2.Re5#
      • 1...Kc5
        • 2.Re5#
      • 1...e5
        • 2.Rxe5#
      • 1...Be4!
  • Keys
    • 1.Rc4!
      • threat
        • 2.Qd4#
      • 1...Be4
        • 2.Qxe4#
      • 1...e5
        • 2.Qf7#

Anticipated by 240036(1991)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • B(a);SBLOCK::QAR1(B)
    • P(c);SBLOCK::QAB1(B)
  • Tries
    • Try
      • R(A);
      • Threat
        • R1(A)
      • Vars
        • K(b);P-FLIGHT::R(A)
        • P(c);::R1(A),XP(c)
      • Refutation
        • B(a);
  • Actual
    • R(A);
    • Threat
      • QAR1(B)
    • Vars
      • B(a);N_GUARD::QAB1(B),XB(a)
      • P(c);OGATEB,SBLOCK::QAB(B)
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