MESON Chess Problem Database

Problem Display
PID: 137452 (1r6/8/2RPPk2/5N1B/2Q2K2/Bn3b2/8/3n4 w - - 0 1)

Leun, Evgeny

Marandiuk, Mikhail Nazarovich

Sportivna Gazeta, 1987

1r6/8/2RPPk2/5N1B/2Q2K2/Bn3b2/8/3n4

#2

8 + 5

6490 yacpdb 2010

SOLUTION

  • SOUND
  • Tries
    • 1.e7?
      • threat
        • 2.Qf7#
      • 1...Bxh5
        • 2.d7#
      • 1...Rb4
        • 2.e8S#
      • 1...Rf8
        • 2.exf8Q#
        • 2.exf8R#
      • 1...Bd5!
  • Keys
    • 1.d7!
      • threat
        • 2.Be7#
      • 1...Bxh5
        • 2.e7#
      • 1...Rb4
        • 2.d8Q#
        • 2.d8B#
      • 1...Re8
        • 2.dxe8S#
      • 1...Sc5
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(H);
      • Threat
        • QAR1(B)
      • Vars
        • B(c);N_GUARD,XB(E)::R(F)+P(G)
        • R(e);N_GUARD,P_PINQ(B)::P=S
        • R(e);OGATE::PXR(e)=Q
      • Refutation
        • B(c);
  • Actual
    • P(G);
    • Threat
      • B(A)
    • Vars
      • B(c);N_GUARD,XB(E)::R(F)+P(H)
      • R(e);N_GUARD,P_PINQ(B)::P=Q
      • R(e);OGATE::PXR(e)=S
      • S(b);N_GUARD::QAB(B)
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