MESON Chess Problem Database

Problem Display
PID: 160858 (8/5Q2/1K6/1N2k3/8/5P2/8/5N2 w - - 0 1)

Agapov, Igor Alexeyevich

SuperProblem 118. TT, 2014

8/5Q2/1K6/1N2k3/8/5P2/8/5N2

#2

5 + 1

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Tries
    • 1.Sa3?
      • 1...Kd6
        • 2.Sc4#
      • 1...Kd4!
    • 1.Sd4?
      • 1...Kd6
        • 2.Qe6#
      • 1...Kxd4!
    • 1.Sc7?
      • 1...Kd6
        • 2.Qe6#
      • 1...Kd4!
    • 1.Qe6+?
      • 1...Kf4
        • 2.Qf6#
      • 1...Kxe6!
    • 1.Qf6+?
      • 1...Kd5
        • 2.Se3#
      • 1...Kxf6!
    • 1.Qe7+?
      • 1...Kf4
        • 2.Qf6#
      • 1...Kd5
        • 2.Se3#
        • 2.Qe4#
      • 1...Kf5!
  • Keys
    • 1.Qg6!
      • 1...Kf4
        • 2.Qf6#
      • 1...Kd5
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::S(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::QAR1(E)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::QAR1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT,XQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);P-FLIGHT::S(A)
      • Refutation
        • K(a);S_FLIGHT,XQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(E);
    • Vars
      • K(a);S_FLIGHT::QAR2(E)
      • K(a);P-FLIGHT::QAB1(E)
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