MESON Chess Problem Database

Problem Display
PID: 119719 (4B2R/8/8/8/7r/k6p/7K/1Q6 w - - 0 1)

Stepochkin, Anatoly Viktorovich

Kommunar, 1987

4B2R/8/8/8/7r/k6p/7K/1Q6

#2

4 + 3

5454 Near Snap 2009
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ra4
      • 2.Rxh3#
  • Tries
    • 1.Bf7?
      • threat
        • 2.Qb3#
      • 1...Ka4
        • 2.Ra8#
      • 1...Rb4
        • 2.Qa2#
        • 2.Qa1#
      • 1...Rc4!
  • Keys
    • 1.Ba4!
      • threat
        • 2.Qb3#
      • 1...Kxa4
        • 2.Ra8#
      • 1...Rxa4
        • 2.Rxh3#
      • 1...Rb4
        • 2.Qa1#

Anticipated by 10068(1961)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(c);OGATE::R(D),XP(b)
  • Tries
    • Try
      • B(C);
      • Threat
        • QAR1(A)
      • Vars
        • K(a);P-FLIGHT::R(D)
      • Refutation
        • R(c);
  • Actual
    • B(C);
    • Threat
      • QAR1(A)
    • Vars
      • K(a);OGATEB,P-FLIGHT,XB(C)::R(D)
      • R(c);OGATE,SBLOCK,XB(C)::R(D),XP(b)
      • R(c);SBLOCK::QAR2(A)
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