MESON Chess Problem Database

Problem Display
PID: 129878 (7b/8/4Nk2/8/6Q1/B2K4/8/8 w - - 0 1)

Hoffmann, Klaus Peter

Deutsche Schachzeitung, 1930

7b/8/4Nk2/8/6Q1/B2K4/8/8

#2

4 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sd4?
      • 1...Ke5
        • 2.Qf5#
        • 2.Qg5#
      • 1...Bg7
        • 2.Qf5#
      • 1...Kf7!
    • 1.Sf4?
      • 1...Ke5
        • 2.Qg5#
      • 1...Kf7
        • 2.Qg6#
      • 1...Bg7!
    • 1.Sd8?
      • 1...Ke5
        • 2.Qg5#
      • 1...Bg7!
  • Keys
    • 1.Sf8!
      • 1...Ke5
        • 2.Qg5#
      • 1...Kf7
        • 2.Qg6#
      • 1...Bg7
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Vars
        • B(b);SBLOCK::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
        • K(a);P-FLIGHT::QAB1(C)
      • Refutation
        • B(b);
    • Try
      • S(D);
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
      • Refutation
        • B(b);
  • Actual
    • S(D);
    • Vars
      • K(a);S_FLIGHT::QAR2(C)
      • K(a);P-FLIGHT::QAB1(C)
      • B(b);SBLOCK::QAR2(C)
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