MESON Chess Problem Database

Problem Display
PID: 10016 (5Q2/2p1K2p/2B3p1/1R1Pkbn1/4P1P1/3R1P2/8/8 w - - 0 1)

Hermanson, Halvar

Problem (Zagreb), 1961

5Q2/2p1K2p/2B3p1/1R1Pkbn1/4P1P1/3R1P2/8/8

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe4
      • 2.Qf6#
      • 2.f4#
    • 1...Bxg4
      • 2.Qf6#
      • 2.d6#
    • 1...Be6
      • 2.Qf6#
      • 2.dxe6#
    • 1...Bd7
      • 2.Qf6#
      • 2.d6#
    • 1...Bc8
      • 2.Qf6#
      • 2.d6#
  • Keys
    • 1.Qh6!
      • threat
        • 2.Qh2#
      • 1...Kf4
        • 2.Qh2#
      • 1...Sxf3
        • 2.d6#
      • 1...Sxe4
        • 2.f4#
      • 1...Sh3
        • 2.d6#
      • 1...Se6
        • 2.dxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(I);
    • Threat
      • QAB(I)
    • Vars
      • K(a);P_SPINS(c),S_FLIGHT::QAB(I)
      • S(c);XP(B)::R(E)+P(F)
      • S(c);SBLOCK,XP(C)::P(B)
      • S(c);::R(E)+P(F)
      • S(c);OGATE::R(E)+P(F),XS(c)
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