MESON Chess Problem Database

Problem Display
PID: 267608 (6R1/2N2N2/r7/r4kpp/2p5/p1Q1B1P1/7K/8 w - - 0 1)

Melnichenko, Viktor Oleksandrovich

The Problemist, 1998

6R1/2N2N2/r7/r4kpp/2p5/p1Q1B1P1/7K/8

#2

7 + 7

SOLUTION

  • SOUND
  • Tries
    • 1.Bc5?
      • threat
        • 2.Qf3#
      • 1...Kg4
        • 2.Rxg5#
      • 1...g4
        • 2.Qe5#
      • 1...Ke4!
    • 1.Qe5+?
      • 1...Kg4
        • 2.Qf4#
        • 2.Qe4#
      • 1...Rxe5!
    • 1.Qc2+?
      • 1...Kg4
        • 2.Qe4#
      • 1...Kf6!
  • Keys
    • 1.Bb6!
      • threat
        • 2.Qf3#
      • 1...Ke4
        • 2.Sd6#
      • 1...Kg4
        • 2.Sh6#
      • 1...g4
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);
      • Threat
        • QAR2(B)
      • Vars
        • K(d);N_GUARD,P_SPINP(e),S_FLIGHT::R1(G),XP(e)
        • P(e);::QAR1(B)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Refutation
        • R(c);XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(d);N_GUARD,P_SPINP(e),S_FLIGHT::QAR2(B)
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • B(C);
    • Threat
      • QAR2(B)
    • Vars
      • K(d);N_GUARD,S_FLIGHT::S(F)
      • K(d);N_GUARD,P_SPINP(e),S_FLIGHT::S(F)
      • P(e);::S(F)
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