MESON Chess Problem Database

Problem Display
PID: 254452 (8/8/8/8/8/3pN2n/3P1R2/R3K2k w Q - 0 1)

Stepochkin, Anatoly Viktorovich

64 Shakhmatnoe obozrenie, 2021

8/8/8/8/8/3pN2n/3P1R2/R3K2k

#2

5 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Sf4
      • 2.0-0-0#
    • 1...Sg5
      • 2.0-0-0#
  • Tries
    • 1.Rg2?
      • 1...Sf2
        • 2.Kxf2#
      • 1...Sf4
        • 2.Kf2#
        • 2.0-0-0#
      • 1...Sg5
        • 2.Kf2#
        • 2.0-0-0#
      • 1...Sg1!
  • Keys
    • 1.Sg4!
      • 1...Kg1
        • 2.0-0-0#
      • 1...Sxf2
        • 2.Kxf2#
      • 1...Sg1
        • 2.Rh2#
      • 1...Sf4
        • 2.0-0-0#
      • 1...Sg5
        • 2.0-0-0#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(c);N_GUARD::0-0-0
  • Tries
    • Try
      • R(D);
      • Vars
        • S(c);::R(A)+K(B),XS(c)
      • Refutation
        • S(c);
  • Actual
    • S(E);
    • Vars
      • K(a);P-FLIGHT,S_CUTS(c)::0-0-0
      • S(c);XR(D)::R(A)+K(B),XS(c)
      • S(c);SBLOCK::R1(D)
      • S(c);N_GUARD::0-0-0
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