MESON Chess Problem Database

Problem Display
PID: 103293 (8/1p1PPp1p/pB3k1P/K2P3Q/8/8/8/8 w - - 0 1)

Kuznetsov, Mikhail Pavlovich

Marandiuk, Mikhail Nazarovich

Chervoni Girnik, 1975

8/1p1PPp1p/pB3k1P/K2P3Q/8/8/8/8

#2

7 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe7
      • 2.d8Q#
  • Tries
    • 1.Ka4?
      • 1...Kxe7
        • 2.d8Q#
      • 1...a5!
    • 1.Kb4?
      • 1...Kxe7
        • 2.d8Q#
      • 1...a5+!
    • 1.Bd8?
      • threat
        • 2.e8Q#
        • 2.e8S#
        • 2.e8B#
        • 2.e8R#
      • 1...b5
        • 2.e8Q#
        • 2.e8S#
        • 2.e8B#
        • 2.e8R#
      • 1...b6+!
    • 1.Qg4?
      • 1...Kxe7
        • 2.d8Q#
      • 1...Ke5!
    • 1.Qf5+?
      • 1...Kxe7
        • 2.d8Q#
      • 1...Kxf5!
  • Keys
    • 1.d8R!
      • 1...Kxe7
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT,XP(G)::P=Q
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(b);S_FLIGHT,XP(G)::P=Q
      • Refutation
        • P(a);
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(b);S_FLIGHT,XP(G)::P=Q
      • Refutation
        • P(a);CHECK
    • Try
      • B(D);
      • Threat
        • DUALS(4)
      • Refutation
        • P(c);CHECK
    • Try
      • Q(C);
      • Vars
        • K(b);S_FLIGHT,XP(G)::P=Q
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);S_FLIGHT,XP(G)::P=Q
      • Refutation
        • K(b);P-FLIGHT,XQ(C)
  • Actual
    • P(F);
    • Vars
      • K(b);S_FLIGHT,XP(G)::QAR2(C)
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