MESON Chess Problem Database

Problem Display
PID: 52634 (5K2/3p1n2/3pk1p1/1nR5/2r5/4NN2/B1R5/1Q6 w - - 0 1)

Sydenham, Colin Peter

1st Prize, Het Belgisch Schaakbord (L'Echiquier Belge), 1988-1989

5K2/3p1n2/3pk1p1/1nR5/2r5/4NN2/B1R5/1Q6

#2

7 + 7

5110 Bekroonde Problemen 2002
15513 Selected Chess Problems of Colin Sydenham 2015

SOLUTION

  • SOUND
  • Tries
    • 1.Sd4+?
      • 1...Kf6
        • 2.Sg4#
        • 2.Rf2#
        • 2.Qf1#
      • 1...Sxd4!
    • 1.Bxc4+?
      • 1...Kf6
        • 2.Sg4#
      • 1...d5!
    • 1.Re2?
      • threat
        • 2.Qxg6#
      • 1...Kf6
        • 2.Sd5#
      • 1...Sh8
        • 2.Sg4#
      • 1...g5
        • 2.Qf5#
        • 2.Qg6#
      • 1...Se5!
  • Keys
    • 1.Rf2!
      • threat
        • 2.Qxg6#
      • 1...Kf6
        • 2.Sd4#
      • 1...Se5
        • 2.Sg5#
      • 1...Sh8
        • 2.Sg5#
      • 1...g5
        • 2.Qf5#
        • 2.Qg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);CHECK
      • Refutation
        • S(b);XS(E)
    • Try
      • B(B);CHECK,XR(a)
      • Vars
        • K(d);P-FLIGHT::S(D)
      • Refutation
        • P(c);P_SPINP(c)
    • Try
      • R(C);
      • Threat
        • QAR2(A),XP(e)
      • Vars
        • K(d);N_SPINR(a),P-FLIGHT::S(D)
        • S(g);N_GUARD::R(C)+S(D)
      • Refutation
        • S(g);
  • Actual
    • R(C);
    • Threat
      • QAR2(A),XP(e)
    • Vars
      • K(d);N_SPINR(a),P-FLIGHT::R(C)+S(E)
      • S(g);N_GUARD::S(E)
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