MESON Chess Problem Database

Problem Display
PID: 70215 (8/8/2p1pN2/7Q/1p1k1p2/1P6/3K4/8 w - - 0 1)

Vandemeulebroucke, Ignaas

2nd Comm., Het Belgisch Schaakbord (L'Echiquier Belge), 1989-1990

8/8/2p1pN2/7Q/1p1k1p2/1P6/3K4/8

#2

4 + 5

5110 Bekroonde Problemen 2002

SOLUTION

  • SOUND
  • Tries
    • 1.Sg4?
      • threat
        • 2.Qe5#
      • 1...e5
        • 2.Qxe5#
      • 1...Ke4!
    • 1.Sd7?
      • threat
        • 2.Qe5#
      • 1...e5
        • 2.Qxe5#
      • 1...Ke4!
    • 1.Qe2?
      • 1...f3
        • 2.Qe3#
      • 1...c5
        • 2.Qe4#
      • 1...e5
        • 2.Qc4#
        • 2.Qf2#
      • 1...Kc5!
    • 1.Qa5?
      • 1...c5
        • 2.Qa1#
      • 1...e5
        • 2.Qxb4#
      • 1...f3!
  • Keys
    • 1.Qg5!
      • 1...e5
        • 2.Qg1#
      • 1...f3
        • 2.Qe3#
      • 1...c5
        • 2.Qxf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • QAB1(C)
      • Vars
        • P(e);::QAB1(C),XP(e)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(D);
      • Threat
        • QAB1(C)
      • Vars
        • P(e);::QAB1(C),XP(e)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • P(c);N_GUARD::QAB1(C)
        • P(d);SBLOCK::QAR1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • P(d);SBLOCK::QAB(C)
        • P(e);SBLOCK::QAR2(C),XP(a)
      • Refutation
        • P(c);
  • Actual
    • Q(C);
    • Vars
      • P(e);SBLOCK::QAB(C)
      • P(c);OGATE::QAB1(C)
      • P(d);SBLOCK::QAR2(C),XP(c)
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