MESON Chess Problem Database

Problem Display
PID: 23020 (8/8/8/8/3Q4/3p2Nk/6R1/4bK2 w - - 0 1)

Melnichenko, Viktor Oleksandrovich

Lokker MT, 1987

8/8/8/8/3Q4/3p2Nk/6R1/4bK2

#2

4 + 3

2786 More Fun with Chess Miniatures 2000

SOLUTION

  • SOUND
  • Tries
    • 1.Se2?
      • threat
        • 2.Sg1#
        • 2.Qg4#
      • 1...Bf2
        • 2.Qg4#
      • 1...Bg3
        • 2.Sg1#
      • 1...dxe2+!
    • 1.Rh2+?
      • 1...Kxh2
        • 2.Qh4#
      • 1...Kxg3!
    • 1.Qe5?
      • threat
        • 2.Qh5#
      • 1...Kh4
        • 2.Qh5#
      • 1...Bxg3
        • 2.Qxg3#
      • 1...Kg4!
  • Keys
    • 1.Se4!
      • threat
        • 2.Sg5#
      • 1...Kh4
        • 2.Qh8#
      • 1...Bd2
        • 2.Sf2#
      • 1...Bh4
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::QAB1(D)
        • B(a);::S(C)
      • Refutation
        • P(b);CHECK,XS(C)
    • Try
      • R(B);CHECK
      • Vars
        • K(c);P-FLIGHT,XR(B)::QAR2(D)
      • Refutation
        • K(c);P-FLIGHT,XS(C)
    • Try
      • Q(D);
      • Threat
        • QAR2(D)
      • Vars
        • K(c);P-FLIGHT::QAR1(D)
        • B(a);OGATE,XS(C)::QAR1(D),XB(a)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • K(c);P-FLIGHT::QAR(D)
      • B(a);N_GUARD::S(C)
      • B(a);SBLOCK::QAB(D)
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