MESON Chess Problem Database

Problem Display
PID: 120717 (7Q/3Pkp2/2Pr4/3p4/2pN4/8/8/2K5 w - - 0 1)

Scheel, Johan

Morgenbladet, 1910

7Q/3Pkp2/2Pr4/3p4/2pN4/8/8/2K5

#2

5 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc6
      • 2.d8Q#
    • 1...Re6
      • 2.Sf5#
      • 2.d8Q#
    • 1...Rf6
      • 2.d8Q#
    • 1...Rg6
      • 2.d8Q#
    • 1...Rh6
      • 2.d8Q#
    • 1...f6
      • 2.Qe8#
  • Keys
    • 1.c7!
      • threat
        • 2.Qd8#
      • 1...Kxd7
        • 2.Qd8#
      • 1...Rxd7
        • 2.c8S#
      • 1...Ra6
        • 2.d8Q#
      • 1...Rb6
        • 2.d8Q#
      • 1...Rc6
        • 2.d8Q#
      • 1...Re6
        • 2.d8Q#
      • 1...Rf6
        • 2.d8Q#
      • 1...Rg6
        • 2.d8Q#
      • 1...Rh6
        • 2.d8Q#
      • 1...f5
        • 2.Qg7#
      • 1...f6
        • 2.Qg7#
        • 2.Qe8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • R(c);N_GUARD,XP(C)::P=Q
    • R(c);N_GUARD::P=Q
    • P(e);SBLOCK::QAR1(E)
  • Actual
    • P(C);
    • Threat
      • QAB1(E)
    • Vars
      • K(d);P-FLIGHT,XP(D)::QAR1(E)
      • R(c);SBLOCK,XP(D)::P=S
      • R(c);N_GUARD::P=Q
      • P(e);OGATEB::QAR2(E)
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