MESON Chess Problem Database

Problem Display
PID: 276729 (2Q5/8/8/8/8/3p1B2/5P2/1K1Nk3 w - - 0 1)

Ignatenko, Gennady Petrovich

64 Shakhmatnoe obozrenie, 2024

2Q5/8/8/8/8/3p1B2/5P2/1K1Nk3

#2

5 + 2

5454 Near Snap 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Kd2
      • 2.Qc3#
  • Tries
    • 1.Qh3?
      • 1...d2
        • 2.Qh1#
      • 1...Kd2!
    • 1.Qg4?
      • 1...Kd2
        • 2.Qb4#
      • 1...d2
        • 2.Qg1#
      • 1...Kf1!
    • 1.Qa6?
      • 1...Kd2
        • 2.Qa5#
      • 1...d2
        • 2.Qe2#
      • 1...Kf1!
    • 1.Qe6+?
      • 1...Kd2
        • 2.Qe3#
      • 1...Kf1!
    • 1.Qc4?
      • 1...Kd2
        • 2.Qc3#
        • 2.Qb4#
      • 1...d2
        • 2.Qe2#
      • 1...Kf1!
    • 1.Qe8+?
      • 1...Kd2
        • 2.Qe3#
      • 1...Kf1!
  • Keys
    • 1.Qh8!
      • 1...Kf1
        • 2.Qh1#
      • 1...Kd2
        • 2.Qc3#
      • 1...d2
        • 2.Qh1#

Anticipated by 252580(2021)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);N_GUARD,S_CUTP(b),S_FLIGHT::QAB1(E)
  • Tries
    • Try
      • Q(E);
      • Vars
        • P(b);SBLOCK::QAR(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(a);N_GUARD,S_CUTP(b),S_FLIGHT::QAB(E)
        • P(b);SBLOCK::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(a);N_GUARD,S_CUTP(b),S_FLIGHT::QAB(E)
        • P(b);OGATE::QAR1(E)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(E);
      • Vars
        • P(b);OGATE::QAR1(E)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(E);
    • Vars
      • K(a);N_GUARD,P-FLIGHT::QAR2(E)
      • K(a);N_GUARD,S_CUTP(b),S_FLIGHT::QAB1(E)
      • P(b);SBLOCK::QAR(E)
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Developed and maintained by Brian Stephenson.
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