MESON Chess Problem Database

Problem Display
PID: 70298 (1b6/q1p5/r1p5/3k1pQ1/3N2Rn/1P6/2n2N1B/5B1K w - - 0 1)

Goldschmeding, Cornelis

2nd Prize, Het Belgisch Schaakbord (L'Echiquier Belge), 1990-1991

1b6/q1p5/r1p5/3k1pQ1/3N2Rn/1P6/2n2N1B/5B1K

#2

8 + 9

5110 Bekroonde Problemen 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Qc5
      • 2.Qg8#
    • 1...Sg2
      • 2.Qxf5#
    • 1...c5
      • 2.Bc4#
  • Tries
    • 1.Bg2+?
      • 1...Sxg2
        • 2.Qxf5#
      • 1...Sf3
        • 2.Qxf5#
      • 1...Kc5!
  • Keys
    • 1.Se4!
      • threat
        • 2.Qd8#
      • 1...Kxd4
        • 2.Qd2#
      • 1...Qxd4
        • 2.Qg8#
      • 1...Sxd4
        • 2.Bc4#
      • 1...Qc5
        • 2.Sf6#
      • 1...c5
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • Q(g);SBLOCK::QAB(H)
    • S(b);N_GUARD::QAR2(H),XP(d)
    • P(f);SBLOCK::B(A)
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • S(b);XB(A)::QAR2(H),XP(d)
        • S(b);P_SPINS(b)::QAR2(H),XP(d)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • S(C);
    • Threat
      • QAR(H)
    • Vars
      • K(c);N_SPINP(d),OGATEB,P-FLIGHT,XS(F)::QAR2(H)
      • Q(g);SBLOCK,XS(F)::QAB(H)
      • S(a);SBLOCK,XS(F)::B(A)
      • Q(g);SBLOCK::S(C)
      • P(f);SBLOCK::S(C)
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