MESON Chess Problem Database

Problem Display
PID: 245603 (8/3N4/p2P2p1/1nB1p1N1/K1k2n2/2p2Q2/2pp4/5b2 w - - 0 1)

Goldschmeding, Cornelis

Schweizerische Schachzeitung, 1993

8/3N4/p2P2p1/1nB1p1N1/K1k2n2/2p2Q2/2pp4/5b2

#2

6 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Sd3
      • 2.Qf7#
    • 1...Sd5
      • 2.Qxf1#
    • 1...Sa3
      • 2.Qe4#
    • 1...Sa7
      • 2.Qe4#
    • 1...Sc7
      • 2.Qe4#
  • Tries
    • 1.Se4?
      • threat
        • 2.Sb6#
      • 1...Sd5
        • 2.Sxe5#
        • 2.Qxf1#
      • 1...Kd5!
    • 1.Se6?
      • threat
        • 2.Sxe5#
        • 2.Sb6#
      • 1...e4
        • 2.Sb6#
      • 1...Sd3
        • 2.Sb6#
      • 1...Sd5
        • 2.Sxe5#
        • 2.Qxf1#
      • 1...Sxe6!
    • 1.Bg1?
      • threat
        • 2.Sxe5#
        • 2.Sb6#
      • 1...e4
        • 2.Sb6#
      • 1...Sd3
        • 2.Sb6#
        • 2.Qf7#
      • 1...Sd5
        • 2.Sxe5#
        • 2.Qxf1#
      • 1...Sd4!
    • 1.Bf2?
      • threat
        • 2.Sxe5#
        • 2.Sb6#
      • 1...e4
        • 2.Sb6#
      • 1...Sd3
        • 2.Sb6#
        • 2.Qf7#
      • 1...Sd5
        • 2.Sxe5#
      • 1...Sd4!
    • 1.Bb6?
      • threat
        • 2.Sxe5#
      • 1...Sd3
        • 2.Qf7#
      • 1...e4!
    • 1.Ba7?
      • threat
        • 2.Sxe5#
      • 1...Sxa7
        • 2.Qe4#
      • 1...Sd3
        • 2.Qf7#
      • 1...e4!
    • 1.Qe3?
      • threat
        • 2.Sb6#
      • 1...Kd5
        • 2.Qe4#
      • 1...Sd5
        • 2.Sxe5#
      • 1...Sd4!
  • Keys
    • 1.Qc6!
      • threat
        • 2.Sxe5#
      • 1...Kd3
        • 2.Qe4#
      • 1...Sd3
        • 2.Sb6#
      • 1...e4
        • 2.Se5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • S(f);OGATE,SBLOCK::QAB(A)
    • S(f);N_GUARD,SBLOCK::QAB(A),XB(a)
    • S(g);N_GUARD::QAR2(A)
  • Tries
    • Try
      • S(D);
      • Threat
        • S(F)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • S(D);
      • Threat
        • DUALS(2)
      • Vars
        • P(h);::S(F)
        • S(f);::S(F)
      • Refutation
        • S(f);XS(D)
    • Try
      • B(C);
      • Threat
        • DUALS(2)
      • Vars
        • P(h);::S(F)
      • Refutation
        • S(g);
    • Try
      • B(C);
      • Threat
        • DUALS(2)
      • Vars
        • P(h);::S(F)
        • S(f);::S(F),XP(h)
      • Refutation
        • S(g);
    • Try
      • B(C);
      • Threat
        • S(F),XP(h)
      • Vars
        • S(f);OGATE,SBLOCK::QAB(A)
      • Refutation
        • P(h);
    • Try
      • B(C);
      • Threat
        • S(F),XP(h)
      • Vars
        • S(g);N_GUARD,XB(C)::QAR2(A)
        • S(f);OGATE,SBLOCK::QAB(A)
      • Refutation
        • P(h);
    • Try
      • Q(A);
      • Threat
        • S(F)
      • Vars
        • K(e);S_FLIGHT::QAB1(A)
        • S(f);SBLOCK::S(F),XP(h)
      • Refutation
        • S(g);
  • Actual
    • Q(A);
    • Threat
      • S(F),XP(h)
    • Vars
      • K(e);S_FLIGHT::QAB1(A)
      • S(f);SBLOCK::S(F)
      • P(h);::S(F)
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