MESON Chess Problem Database

Problem Display
PID: 172312 (5K2/3k1N1R/1Q6/8/5P2/8/8/2r5 w - - 0 1)

Andreev, Aleksandr Grigorevich

Vecherni Krasnodar, 1996

5K2/3k1N1R/1Q6/8/5P2/8/8/2r5

#2

5 + 2

6490 yacpdb 2018
5454 Near Snap 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kc8
      • 2.Sd6#
    • 1...Rc8+
      • 2.Sd8#
  • Keys
    • 1.f5!
      • threat
        • 2.Sd6#
      • 1...Rc8+
        • 2.Sd8#
      • 1...Kc8
        • 2.Sd6#
      • 1...Re1
        • 2.Qb7#
      • 1...Rg1
        • 2.Qb7#
      • 1...Rh1
        • 2.Qb7#
      • 1...Rc6
        • 2.Qd8#
      • 1...Rc7
        • 2.Qe6#

Anticipated by 17285(1929), 38283(1929)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::S(C)
    • R(a);CHECK,SBLOCK::R(D)+S(C)
  • Actual
    • P(A);
    • Threat
      • R(D)+S(C)
    • Vars
      • R(a);CHECK,SBLOCK::R(D)+S(C)
      • K(b);S_FLIGHT::S(C)
      • R(a);N_GUARD::QAR2(B)
      • R(a);SBLOCK::QAR1(B)
      • R(a);SBLOCK::QAB1(B)
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