MESON Chess Problem Database

Problem Display
PID: 108826 (6Q1/8/8/8/K5N1/7k/5P2/1R2b3 w - - 0 1)

Lebedinets, Nikolai Grigorevich

Apprenti Sorcier, 1992

6Q1/8/8/8/K5N1/7k/5P2/1R2b3

#2

5 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Se5?
      • threat
        • 2.Qg3#
      • 1...Kh4
        • 2.Qg4#
      • 1...Bxf2
        • 2.Rh1#
      • 1...Kh2!
    • 1.Sf6?
      • threat
        • 2.Qg3#
      • 1...Kh4
        • 2.Qg3#
        • 2.Qg4#
      • 1...Bxf2
        • 2.Rh1#
      • 1...Kh2!
    • 1.Sh6?
      • threat
        • 2.Qg3#
      • 1...Kh4
        • 2.Qg4#
      • 1...Bxf2
        • 2.Rh1#
      • 1...Kh2!
    • 1.Rxe1?
      • 1...Kh4
        • 2.Rh1#
      • 1...Kg2!
  • Keys
    • 1.Se3!
      • threat
        • 2.Qh7#
        • 2.Qg3#
        • 2.Qh8#
      • 1...Kh2
        • 2.Qg2#
      • 1...Kh4
        • 2.Qg4#
      • 1...Bxf2
        • 2.Rh1#
      • 1...Bc3
        • 2.Rh1#
        • 2.Qh7#
        • 2.Qg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • QAR1(E)
      • Vars
        • K(b);P-FLIGHT::QAR1(E)
        • B(a);OGATE,XP(B)::R(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(D);
      • Threat
        • QAR1(E)
      • Vars
        • B(a);OGATE,XP(B)::R(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(D);
      • Threat
        • QAR1(E)
      • Vars
        • K(b);P-FLIGHT::QAR1(E)
        • B(a);OGATE,XP(B)::R(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(A);XB(a)
      • Vars
        • K(b);P-FLIGHT::R(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(D);
    • Threat
      • DUALS(3)
    • Vars
      • K(b);P-FLIGHT::QAR1(E)
      • B(a);OGATE,XP(B)::R(A)
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