MESON Chess Problem Database

Problem Display
PID: 109330 (5q2/3nR2P/6Pk/7B/5p1Q/8/8/5K2 w - - 0 1)

Scheel, Johan

Aftenposten, 1910

5q2/3nR2P/6Pk/7B/5p1Q/8/8/5K2

#2

6 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qf5
      • 2.h8Q#
      • 2.h8R#
    • 1...Qg8
      • 2.hxg8S#
  • Keys
    • 1.g7!
      • threat
        • 2.Be8#
      • 1...Kxh7
        • 2.gxf8Q#
      • 1...Qxe7
        • 2.h8Q#
      • 1...Qf7
        • 2.h8Q#
      • 1...Qf5
        • 2.g8S#
      • 1...Qf6
        • 2.g8S#
        • 2.h8Q#
        • 2.h8R#
      • 1...Qe8
        • 2.Bxe8#
      • 1...Sf6
        • 2.gxf8Q#
        • 2.gxf8B#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • Q(d);N_GUARD::P=Q
    • Q(d);OGATE::PXQ(d)=S
  • Actual
    • P(D);
    • Threat
      • QAR(B)+B(C)
    • Vars
      • K(b);P-FLIGHT,XP(F)::PXQ(d)=Q
      • Q(d);N_GUARD,XR(E)::P=Q
      • Q(d);N_GUARD::P=Q
      • Q(d);N_GUARD::P=S
      • Q(d);::QAR(B)+B(C),XQ(d)
      • S(c);N_GUARD::PXQ(d)=Q
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