MESON Chess Problem Database

Problem Display
PID: 121418 (8/3K4/4N1Q1/4k1p1/2p1p1p1/2p1b3/8/8 w - - 0 1)

Erlin, Konrad (AKA Erlinger, Konrad)

La Strategie, 1906

8/3K4/4N1Q1/4k1p1/2p1p1p1/2p1b3/8/8

#2

3 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qf5#
    • 1...Bg1
      • 2.Qxg5#
    • 1...Bf2
      • 2.Qxg5#
    • 1...Bd4
      • 2.Qxg5#
    • 1...Bc5
      • 2.Qxg5#
    • 1...Bb6
      • 2.Qxg5#
    • 1...Ba7
      • 2.Qxg5#
  • Tries
    • 1.Qf6+?
      • 1...Kd5
        • 2.Qf5#
      • 1...Kxf6!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Qd6#
      • 1...Kxd4
        • 2.Qd6#
      • 1...Kf4
        • 2.Qd6#
      • 1...Kd5
        • 2.Qd6#
      • 1...Bxd4
        • 2.Qxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • K(f);P-FLIGHT::QAR2(B)
    • B(b);N_GUARD::QAR2(B),XP(g)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(f);P-FLIGHT::QAR2(B)
      • Refutation
        • K(f);S_FLIGHT,XQ(B)
  • Actual
    • S(A);
    • Threat
      • QAB1(B)
    • Vars
      • K(f);S_FLIGHT,XS(A)::QAR2(B)
      • K(f);S_FLIGHT::QAB(B)
      • K(f);P-FLIGHT::QAR1(B)
      • B(b);N_GUARD,SBLOCK,XS(A)::QAR2(B),XP(g)
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