MESON Chess Problem Database

Problem Display
PID: 178762 (8/8/8/7b/8/4Q3/1N1p3K/5k2 w - - 0 1)

Froberg, Johan Hilding Laurentius

Springaren, 1984

8/8/8/7b/8/4Q3/1N1p3K/5k2

#2

3 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Be2
      • 2.Qg1#
  • Tries
    • 1.Qf3+?
      • 1...Ke1
        • 2.Sd3#
      • 1...Bxf3!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Qf2#
      • 1...d1S
        • 2.Qe1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(c);SBLOCK::QAR1(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);P-FLIGHT::S(A)
      • Refutation
        • B(c);XQ(C)
  • Actual
    • S(A);
    • Threat
      • QAR1(C)
    • Vars
      • P(b);N_GUARD::QAR1(C)
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