MESON Chess Problem Database

Problem Display
PID: 12415 (8/2n2K2/8/r1p2NQp/2pPk3/q1b5/2n1PP2/7r w - - 0 1)

Dittrich, Stefan

Muller, Dieter

2nd Prize, Schach, 1979

8/2n2K2/8/r1p2NQp/2pPk3/q1b5/2n1PP2/7r

#2

6 + 10

3750 FIDE Album (1977-1979) 1984

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qg2#
    • 1...Bxd4
      • 2.Sd6#
    • 1...Sxd4
      • 2.Sg3#
      • 2.Sd6#
    • 1...Sd5
      • 2.f3#
    • 1...cxd4
      • 2.Sg3#
  • Tries
    • 1.Se3?
      • threat
        • 2.Qe5#
      • 1...Kxd4
        • 2.Qf4#
      • 1...Bxd4
        • 2.Qf5#
        • 2.f3#
      • 1...cxd4
        • 2.f3#
      • 1...Sxd4!
    • 1.Qf4+?
      • 1...Kd5
        • 2.Se7#
        • 2.Qf3#
      • 1...Kxf4!
    • 1.Qh4+?
      • 1...Kd5
        • 2.Qxh1#
      • 1...Kxf5
        • 2.e4#
      • 1...Rxh4!
    • 1.Qg4+?
      • 1...Kd5
        • 2.Qf3#
        • 2.Qg2#
      • 1...hxg4!
  • Keys
    • 1.Se7!
      • threat
        • 2.Qe5#
      • 1...Kxd4
        • 2.Qf4#
      • 1...Bxd4
        • 2.Qf5#
      • 1...Sxd4
        • 2.Qe3#
      • 1...cxd4
        • 2.f3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • K(f);S_FLIGHT::QAB(E)
    • B(d);SBLOCK,XP(C)::S(D)
    • S(j);SBLOCK::P(B)
    • P(h);SBLOCK,XP(C)::S(D)
  • Tries
    • Try
      • S(D);
      • Threat
        • QAR1(E)
      • Vars
        • K(f);P-FLIGHT,XP(C)::QAR2(E)
        • P(h);SBLOCK,XP(C)::P(B)
      • Refutation
        • S(b);XP(C)
    • Try
      • Q(E);CHECK
      • Refutation
        • K(f);P-FLIGHT,XQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • K(f);S_FLIGHT::QAB(E),XR(a)
        • K(f);OGATE,S_FLIGHT,XS(D)::P(A)
      • Refutation
        • R(a);XQ(E)
    • Try
      • Q(E);CHECK
      • Refutation
        • P(i);XQ(E)
  • Actual
    • S(D);
    • Threat
      • QAR1(E)
    • Vars
      • K(f);P-FLIGHT,XP(C)::QAR2(E)
      • B(d);SBLOCK,XP(C)::QAB1(E)
      • S(b);N_GUARD,XP(C)::QAR1(E)
      • P(h);SBLOCK,XP(C)::P(B)
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