MESON Chess Problem Database

Problem Display
PID: 121351 (8/Q6B/8/3kp3/2Np4/K7/8/8 w - - 0 1)

Lindgren, Frithiof

Suddeutsche Schachblatter, 1921

8/Q6B/8/3kp3/2Np4/K7/8/8

#2

4 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Kb4?
      • threat
        • 2.Qd7#
      • 1...Kc6
        • 2.Be4#
      • 1...Ke6!
    • 1.Qd7+?
      • 1...Kxc4
        • 2.Qc6#
      • 1...Kc5!
  • Keys
    • 1.Qb6!
      • 1...Kxc4
        • 2.Qc6#
      • 1...d3
        • 2.Se3#
      • 1...e4
        • 2.Bg8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Threat
        • QAR2(C)
      • Vars
        • K(b);S_FLIGHT::B(D)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);S_FLIGHT,XS(B)::QAR2(C)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(b);S_FLIGHT,XS(B)::QAR2(C)
      • P(a);N_GUARD::S(B)
      • P(c);SBLOCK::B(D)
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