MESON Chess Problem Database

Problem Display
PID: 268782 (3r4/2B5/2n2N2/5Rn1/2RP4/4k1P1/8/2K2B2 w - - 0 1)

Doukhan, Gerard

Problemas, 2020

3r4/2B5/2n2N2/5Rn1/2RP4/4k1P1/8/2K2B2

#2

8 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Se4
      • 2.Sg4#
    • 1...Sxd4
      • 2.Rc3#
  • Tries
    • 1.Bb6?
      • threat
        • 2.Rc3#
      • 1...Se4
        • 2.Sg4#
      • 1...Sb4
        • 2.d5#
      • 1...Se5
        • 2.d5#
      • 1...Sf3!
    • 1.Rf4?
      • threat
        • 2.Sg4#
        • 2.Rc3#
      • 1...Rxd4
        • 2.Sg4#
      • 1...Sf3
        • 2.Sg4#
      • 1...Se4
        • 2.Sg4#
      • 1...Sb4
        • 2.Sg4#
      • 1...Se5!
  • Keys
    • 1.d5!
      • threat
        • 2.Sg4#
      • 1...Sd4
        • 2.Rc3#
      • 1...Se5
        • 2.Bb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • S(b);SBLOCK::S(G)
    • S(c);SBLOCK,XP(E)::R(D)
  • Tries
    • Try
      • B(H);
      • Threat
        • R(D)
      • Vars
        • S(b);SBLOCK::S(G)
        • S(c);N_GUARD::B(H)+P(E)
      • Refutation
        • S(b);
    • Try
      • R(F);
      • Threat
        • DUALS(2)
      • Vars
        • R(d);XP(E)::S(G)
        • S(b);::S(G)
        • S(c);::S(G)
      • Refutation
        • S(c);
  • Actual
    • P(E);
    • Threat
      • S(G)
    • Vars
      • S(c);SBLOCK::R(D)
      • S(c);N_GUARD::B(H)
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