MESON Chess Problem Database

Problem Display
PID: 12430 (1rR5/1b3pr1/p1p5/K1k2N1Q/3N4/2p2pp1/B1p1n3/2b2q2 w - - 0 1)

Hoffmann, Fritz

1st Prize, Due Alfieri, 1978-1979

1rR5/1b3pr1/p1p5/K1k2N1Q/3N4/2p2pp1/B1p1n3/2b2q2

#2

6 + 14

3750 FIDE Album (1977-1979) 1984
23 Die Schwalbe 2009

SOLUTION

  • SOUND
  • Sets
    • 1...f6
      • 2.Se6#
  • Keys
    • 1.Qxf7!
      • threat
        • 2.Sb3#
        • 2.Se6#
        • 2.Qc4#
        • 2.Qd5#
      • 1...Rxf7
        • 2.Se6#
      • 1...Rxc8
        • 2.Sb3#
        • 2.Se6#
        • 2.Qc4#
      • 1...Bxc8
        • 2.Qc4#
      • 1...Sxd4
        • 2.Qd5#
      • 1...Rg6
        • 2.Sb3#
        • 2.Qc4#
        • 2.Qd5#
      • 1...Ba8
        • 2.Se6#
        • 2.Qc4#
        • 2.Qd5#
      • 1...Sg1
        • 2.Sb3#
        • 2.Se6#
        • 2.Qd5#
      • 1...Sf4
        • 2.Sb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(l);N_GUARD::S(B)
  • Actual
    • Q(E);XP(l)
    • Threat
      • DUALS(4)
    • Vars
      • R(m);XQ(E)::S(B)
      • B(k);N_SPINP(j),XR(F)::QAR1(E)
      • S(d);XS(B)::QAR1(E)
      • S(d);::S(B)
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