MESON Chess Problem Database

Problem Display
PID: 206347 (8/5p2/2p5/2PPk1p1/8/1K2BQ2/8/8 w - - 0 1)

Torngren, Eric

Eskilstuna Kuriren, 1925

8/5p2/2p5/2PPk1p1/8/1K2BQ2/8/8

#2

5 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qe4+?
      • 1...Kf6
        • 2.Bd4#
      • 1...Kxe4!
    • 1.Qf4+?
      • 1...Kxd5
        • 2.Qf5#
      • 1...gxf4!
  • Keys
    • 1.Qg4!
      • 1...Kxd5
        • 2.Qf5#
      • 1...Kf6
        • 2.Qxg5#
      • 1...cxd5
        • 2.Bd4#
      • 1...f5
        • 2.Qd4#
      • 1...f6
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);S_FLIGHT::B(B)
      • Refutation
        • K(a);P-FLIGHT,XQ(C)
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);P-FLIGHT,XP(E)::QAR2(C)
      • Refutation
        • P(b);XQ(C)
  • Actual
    • Q(C);
    • Vars
      • K(a);P-FLIGHT,XP(E)::QAR2(C)
      • K(a);S_FLIGHT::QAB1(C),XP(b)
      • P(c);SBLOCK,XP(E)::B(B)
      • P(d);SBLOCK::QAB1(C)
      • P(d);N_GUARD::QAR1(C)
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