MESON Chess Problem Database

Problem Display
PID: 231135 (8/8/1kN1p3/4Bp2/2Q2K2/8/8/8 w - - 0 1)

Torngren, Pehr Hendrik

Svenska Dagbladet, 1927

8/8/1kN1p3/4Bp2/2Q2K2/8/8/8

#2

4 + 3

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sb4?
      • 1...Ka7
        • 2.Qa6#
      • 1...Kb7
        • 2.Qa6#
      • 1...Ka5!
    • 1.Sa5?
      • 1...Kxa5
        • 2.Bc7#
      • 1...Ka7!
    • 1.Sd8?
      • 1...Ka5
        • 2.Bc7#
      • 1...Ka7!
  • Keys
    • 1.Sb8!
      • 1...Ka5
        • 2.Bc7#
      • 1...Ka7
        • 2.Qa6#
      • 1...Kb7
        • 2.Qa6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Vars
        • K(b);S_FLIGHT::QAR1(A)
        • K(b);P-FLIGHT::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(b);S_FLIGHT,XS(D)::B(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(b);S_FLIGHT::B(C)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(b);S_FLIGHT::B(C)
      • K(b);S_FLIGHT::QAR1(A)
      • K(b);P-FLIGHT::QAB1(A)
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