MESON Chess Problem Database

Problem Display
PID: 80929 (B4K2/4B3/7P/4pk2/8/8/8/Q7 w - - 0 1)

Amirov, Talip Khasanovich

De Waarheid, 1964

B4K2/4B3/7P/4pk2/8/8/8/Q7

#2

5 + 2

5454 Near Snap 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qf1+?
      • 1...Kg4
        • 2.Qf3#
      • 1...Ke6
        • 2.Qh3#
      • 1...Kg6!
    • 1.Qg1?
      • 1...Kf4
        • 2.Qg5#
      • 1...Ke6
        • 2.Qg4#
      • 1...e4!
    • 1.Qa4?
      • 1...Ke6
        • 2.Qg4#
      • 1...e4
        • 2.Qxe4#
      • 1...Kg6!
  • Keys
    • 1.Qh1!
      • 1...Kf4
        • 2.Qf3#
      • 1...Kg4
        • 2.Qf3#
      • 1...Ke6
        • 2.Qh3#
      • 1...Kg6
        • 2.Be4#
      • 1...e4
        • 2.Qxe4#

Anticipated by 4987(1896), 178320(1923), 247669(1955)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • K(b);S_FLIGHT::QAB(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);P-FLIGHT::QAB1(A)
        • K(b);S_FLIGHT::QAB(A)
      • Refutation
        • P(a);
    • Try
      • Q(A);
      • Vars
        • K(b);S_FLIGHT::QAB(A)
        • P(a);::QAB1(A),XP(a)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(b);P-FLIGHT::QAR1(A)
      • K(b);S_FLIGHT::QAB1(A)
      • K(b);S_FLIGHT::QAB(A)
      • K(b);S_FLIGHT::B(D)
      • P(a);::QAB1(A),XP(a)
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