MESON Chess Problem Database

Problem Display
PID: 164531 (8/1k1NK3/1P1P4/8/2N5/2Q5/8/8 w - - 0 1)

Klipachev, Vladimir Panteleevich

Sachmatija, 2007

8/1k1NK3/1P1P4/8/2N5/2Q5/8/8

#2

6 + 1

3713 Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Ka8
      • 2.Qf3#
    • 1...Kc8
      • 2.Sa5#
  • Tries
    • 1.Sb2?
      • 1...Ka8
        • 2.Qf3#
        • 2.Qc6#
        • 2.Qc8#
      • 1...Ka6!
    • 1.Sd2?
      • 1...Ka8
        • 2.Qf3#
        • 2.Qc6#
        • 2.Qc8#
      • 1...Ka6!
    • 1.Sa3?
      • 1...Ka8
        • 2.Qf3#
        • 2.Qc6#
        • 2.Qc8#
      • 1...Ka6!
    • 1.Se3?
      • 1...Ka8
        • 2.Qc6#
        • 2.Qc8#
      • 1...Ka6!
    • 1.Sa5+?
      • 1...Ka8
        • 2.Qh8#
        • 2.Qf3#
        • 2.Qc6#
        • 2.Qc8#
      • 1...Ka6!
    • 1.Sce5?
      • 1...Ka8
        • 2.Qf3#
        • 2.Qc6#
        • 2.Qc8#
      • 1...Ka6!
    • 1.Sc5+?
      • 1...Ka8
        • 2.Qh8#
      • 1...Kb8
        • 2.Qh8#
      • 1...Kc8
        • 2.Qh8#
      • 1...Kc6!
    • 1.Qa1?
      • 1...Kc8
        • 2.Qa6#
        • 2.Qa8#
      • 1...Kc6!
    • 1.Qb2?
      • 1...Ka6
        • 2.Sc5#
      • 1...Ka8
        • 2.Qg2#
      • 1...Kc8
        • 2.b7#
      • 1...Kc6!
    • 1.Qa5?
      • 1...Kc8
        • 2.Qa6#
        • 2.Qa8#
      • 1...Kc6!
    • 1.Qa3?
      • 1...Kc8
        • 2.Qa6#
        • 2.Qa8#
      • 1...Kc6!
    • 1.Qf3+?
      • 1...Kc8
        • 2.Qc6#
        • 2.Qa8#
        • 2.b7#
      • 1...Ka6!
  • Keys
    • 1.Qb3!
      • 1...Ka6
        • 2.Sc5#
      • 1...Kc6
        • 2.Sa5#
      • 1...Ka8
        • 2.Qf3#
      • 1...Kc8
        • 2.b7#

This anticipates 266657(2022)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB(A)
    • K(a);S_FLIGHT::QAR(A)+S(B)
  • Tries
    • Try
      • S(B);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
        • K(a);P-FLIGHT::QAR(A)
        • K(a);S_FLIGHT::QAR(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::S(E)
        • K(a);S_FLIGHT::QAB(A)
        • K(a);OGATE,S_FLIGHT::P(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(a);S_FLIGHT::S(E)
      • K(a);S_FLIGHT::S(B)
      • K(a);S_FLIGHT::QAB(A)
      • K(a);OGATE,S_FLIGHT::P(C)
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