MESON Chess Problem Database

Problem Display
PID: 86589 (6K1/2N2p2/Bp1p1Q2/6p1/1P2k3/1P6/4pp2/2Bbr3 w - - 0 1)

Melnichenko, Viktor Oleksandrovich

Cherkasskaya Pravda, 1986

6K1/2N2p2/Bp1p1Q2/6p1/1P2k3/1P6/4pp2/2Bbr3

#2

7 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...g4
      • 2.Qf4#
  • Tries
    • 1.Sd5?
      • threat
        • 2.Sc3#
      • 1...Kxd5
        • 2.Bb7#
      • 1...b5!
    • 1.Qf3+?
      • 1...Kd4
        • 2.Bb2#
        • 2.Qe3#
      • 1...Ke5
        • 2.Bb2#
      • 1...Kxf3!
    • 1.Qf5+?
      • 1...Kd4
        • 2.Sb5#
      • 1...Kxf5!
  • Keys
    • 1.Sb5!
      • threat
        • 2.Sc3#
      • 1...Kd3
        • 2.Qf5#
      • 1...Kd5
        • 2.Bb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • P(f);N_GUARD::QAR1(E)
  • Tries
    • Try
      • S(F);
      • Threat
        • S(F)
      • Vars
        • K(e);OGATEB,S_FLIGHT,XS(F)::B(D)
      • Refutation
        • P(g);
    • Try
      • Q(E);CHECK
      • Vars
        • K(e);P-FLIGHT::B(A)
      • Refutation
        • K(e);S_FLIGHT,XQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • K(e);P-FLIGHT::S(F)
      • Refutation
        • K(e);S_FLIGHT,XQ(E)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • K(e);S_FLIGHT::QAB(E)
      • K(e);S_FLIGHT::B(D)
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