MESON Chess Problem Database

Problem Display
PID: 17289 (8/b7/8/3n4/3B1r2/7B/5R2/2K2Nkr w - - 0 1)

Mikan, Ilja

Duvtip, 1931

8/b7/8/3n4/3B1r2/7B/5R2/2K2Nkr

#2

5 + 5

5505 Dobrodruzstvi 64 poli 1973

SOLUTION

  • SOUND
  • Sets
    • 1...Sb6
      • 2.Rxf4#
  • Tries
    • 1.Sd2?
      • threat
        • 2.Rg2#
      • 1...Rxf2
        • 2.Sf3#
      • 1...Rh2
        • 2.Rf1#
      • 1...Rxh3!
  • Keys
    • 1.Sh2!
      • threat
        • 2.Rg2#
      • 1...Rxh2
        • 2.Rf1#
      • 1...Rxf2
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(d);N_GUARD,S_CUTB(e)::B(E)+R(C),XR(c)
  • Tries
    • Try
      • S(B);
      • Threat
        • B(E)+R(C),DCHECK
      • Vars
        • R(c);N_GUARD,P_SPINR(c),XR(C)::S(B)
        • R(b);SBLOCK::B(E)+R(C),DCHECK
      • Refutation
        • R(b);XB(D)
  • Actual
    • S(B);
    • Threat
      • B(E)+R(C),DCHECK
    • Vars
      • R(b);SBLOCK,XS(B)::B(E)+R(C),DCHECK
      • R(c);N_GUARD,P_SPINR(c),XR(C)::S(B)
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