MESON Chess Problem Database

Problem Display
PID: 28877 (2R5/6kb/8/3B4/7P/8/1K6/2Q5 w - - 0 1)

McTavish, Duncan

Manitoba Free Press, 1928

2R5/6kb/8/3B4/7P/8/1K6/2Q5

#2

5 + 2

3248 Miniatures canadiennes 2000
5454 Near Snap 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.Qg5#
    • 1...Kg6
      • 2.Qg5#
  • Tries
    • 1.Rc7+?
      • 1...Kf6
        • 2.Qg5#
      • 1...Kg6
        • 2.Qg5#
      • 1...Kh8
        • 2.Qc3#
      • 1...Kf8!
    • 1.Rg8+?
      • 1...Kf6
        • 2.Qg5#
      • 1...Bxg8!
    • 1.Qg1+?
      • 1...Kf6
        • 2.Qg5#
      • 1...Kh6
        • 2.Qg5#
      • 1...Bg6!
  • Keys
    • 1.Rh8!
      • 1...Kf6
        • 2.Qg5#
      • 1...Kg6
        • 2.Qg5#
      • 1...Kxh8
        • 2.Qc3#
      • 1...Bg8
        • 2.Qh6#
      • 1...Bb1
        • 2.Qh6#
      • 1...Bc2
        • 2.Qh6#
      • 1...Bd3
        • 2.Qh6#
      • 1...Be4
        • 2.Qh6#
      • 1...Bf5
        • 2.Qh6#
      • 1...Bg6
        • 2.Qc3#

Anticipated by 5091(1899)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB1(A)
    • K(a);P-FLIGHT::QAR1(A)
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
        • K(a);P-FLIGHT::QAR1(A)
        • K(a);S_FLIGHT::QAB(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(E);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • B(b);XR(E)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • B(b);P_SPINB(b)
  • Actual
    • R(E);
    • Vars
      • K(a);S_FLIGHT::QAB1(A)
      • K(a);P-FLIGHT::QAR1(A)
      • K(a);S_FLIGHT,XR(E)::QAB(A)
      • B(b);::QAB1(A)
      • B(b);SBLOCK::QAB(A)
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