MESON Chess Problem Database

Problem Display
PID: 232632 (7q/1p1B1p2/2PkPp2/3N1Q2/5b2/1KR5/6n1/8 w - - 0 1)

Hoffmann, Fritz

Freie Presse, 1970

7q/1p1B1p2/2PkPp2/3N1Q2/5b2/1KR5/6n1/8

#2

7 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...bxc6
      • 2.Rxc6#
    • 1...fxe6
      • 2.Qxe6#
  • Tries
    • 1.cxb7?
      • threat
        • 2.Rc6#
      • 1...fxe6
        • 2.Qxe6#
      • 1...Qh3
        • 2.b8Q#
        • 2.b8B#
      • 1...Qc8
        • 2.bxc8S#
      • 1...Be5!
  • Keys
    • 1.exf7!
      • threat
        • 2.Qe6#
      • 1...Qh3
        • 2.f8Q#
        • 2.f8B#
      • 1...Qe8
        • 2.fxe8S#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • P(e);OGATE,XP(E)::R1(B),XP(e)
    • P(f);OGATE,XP(F)::QAR1(D),XP(f)
  • Tries
    • Try
      • P(E);XP(e)
      • Threat
        • R1(B)
      • Vars
        • P(f);OGATE,XP(F)::QAR1(D),XP(f)
        • Q(g);N_GUARD,P_PINR(B)::P=Q
        • Q(g);OGATE::PXQ(g)=S
      • Refutation
        • B(b);
  • Actual
    • P(F);XP(f)
    • Threat
      • QAR1(D)
    • Vars
      • Q(g);N_GUARD,P_PINR(B)::P=Q
      • Q(g);OGATE::PXQ(g)=S
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