MESON Chess Problem Database

Problem Display
PID: 52293 (5Nqn/4p2b/Q3pP2/n1R3p1/1P1k4/5P2/p3P1N1/6bK w - - 0 1)

Eerkes, Allard Pieter

2nd Prize, Het Belgisch Schaakbord (L'Echiquier Belge), 1984-1985

5Nqn/4p2b/Q3pP2/n1R3p1/1P1k4/5P2/p3P1N1/6bK

#2

9 + 10

5110 Bekroonde Problemen 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Qg6
      • 2.Sxe6#
    • 1...Qg7
      • 2.Sxe6#
    • 1...Bh2
      • 2.e3#
    • 1...Bd3
      • 2.Qxd3#
    • 1...Sb3
      • 2.Qc4#
    • 1...Sc4
      • 2.Qxc4#
    • 1...Sc6
      • 2.Qc4#
    • 1...Sb7
      • 2.Qc4#
    • 1...Sg6
      • 2.Qd3#
    • 1...Sf7
      • 2.Sxe6#
    • 1...exf6
      • 2.Qd6#
  • Keys
    • 1.Qxe6!
      • threat
        • 2.Qe5#
      • 1...Qxe6
        • 2.Sxe6#
      • 1...exf6
        • 2.Qxf6#
      • 1...Sc4
        • 2.Rxc4#
      • 1...Bh2
        • 2.Qe3#
      • 1...Sc6
        • 2.Rc4#
      • 1...Sg6
        • 2.Qe4#
      • 1...Sf7
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 6
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • Q(i);N_GUARD::S(I),XP(f)
    • B(a);N_GUARD::P(B)
    • B(h);N_GUARD::QAR1(G),XB(h)
    • S(d);N_GUARD::QAR1(G)
    • S(d);N_GUARD::QAR1(G),XS(d)
    • S(j);S_CUTB(h)::QAR1(G)
    • S(j);S_CUTQ(i)::S(I),XP(f)
    • P(g);N_GUARD,XP(H)::QAR2(G)
  • Actual
    • Q(G);XP(f)
    • Threat
      • QAB1(G)
    • Vars
      • Q(i);XQ(G)::S(I),XQ(i)
      • P(g);OGATE,XP(H)::QAB(G),XP(g)
      • S(d);N_GUARD::R1(F),XS(d)
      • B(a);N_GUARD::QAB1(G)
      • S(d);N_GUARD::R1(F)
      • S(j);S_CUTB(h)::QAR1(G)
      • S(j);S_CUTQ(i)::QAR1(G)
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