MESON Chess Problem Database

Problem Display
PID: 227495 (8/P7/8/1K6/8/1k6/8/2Q5 w - - 0 1)

Torngren, Pehr Hendrik

Aftonbladet, 1926

8/P7/8/1K6/8/1k6/8/2Q5

#2

3 + 1

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qb1+?
      • 1...Ka3
        • 2.a8Q#
        • 2.a8R#
      • 1...Kc3!
    • 1.Qc2+?
      • 1...Ka3
        • 2.a8Q#
        • 2.a8R#
      • 1...Kxc2!
  • Keys
    • 1.a8B!
      • 1...Ka2
        • 2.Bd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::P=Q
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::P=Q
      • Refutation
        • K(a);S_FLIGHT,XQ(A)
  • Actual
    • P(C);
    • Vars
      • K(a);S_FLIGHT::B(C)
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