MESON Chess Problem Database

Problem Display
PID: 187743 (8/B1b4r/2n2N1P/2Q2p1B/3p1kpK/R6b/4P2P/7n w - - 0 1)

Neukomm, Gyula (Julius) R

La Strategie, 1909

8/B1b4r/2n2N1P/2Q2p1B/3p1kpK/R6b/4P2P/7n

#2

9 + 9

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Be5
      • 2.Qc1#
    • 1...Sg3
      • 2.hxg3#
    • 1...Sb4
      • 2.Qxd4#
    • 1...Sa5
      • 2.Qxd4#
    • 1...Se5
      • 2.Qxd4#
      • 2.Qc1#
    • 1...Sxa7
      • 2.Qxd4#
    • 1...Se7
      • 2.Qxd4#
      • 2.Qxc7#
    • 1...Sb8
      • 2.Qxd4#
    • 1...Sd8
      • 2.Qxd4#
    • 1...d3
      • 2.Qe3#
    • 1...g3
      • 2.Rf3#
  • Tries
    • 1.Bg6?
      • threat
        • 2.Qxf5#
      • 1...Be5
        • 2.Qc1#
      • 1...Sg3
        • 2.hxg3#
      • 1...Se5
        • 2.Qxd4#
        • 2.Qc1#
      • 1...Se7
        • 2.Qxd4#
        • 2.Qxc7#
      • 1...g3
        • 2.Rf3#
      • 1...Rxh6+!
    • 1.Qd6+?
      • 1...Se5
        • 2.Qxd4#
      • 1...Bxd6!
    • 1.e3+?
      • 1...dxe3
        • 2.Qxe3#
      • 1...Kf3!
  • Keys
    • 1.e4!
      • threat
        • 2.Qxf5#
      • 1...fxe4
        • 2.Qg5#
      • 1...dxe4 ep
        • 2.Qxe3#
      • 1...Be5
        • 2.Qc1#
      • 1...Sg3
        • 2.hxg3#
      • 1...Se5
        • 2.Qc1#
      • 1...Se7
        • 2.Qxc7#
      • 1...g3
        • 2.Rf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • B(h);SBLOCK::QAB(E)
    • S(a);OGATE::P(B),XS(a)
    • S(g);N_GUARD::QAR2(E),XP(c)
    • S(g);N_GUARD,XB(I)::QAR2(E),XP(c)
    • P(c);OGATE::QAB1(E)
    • P(e);N_GUARD::R1(C)
  • Tries
    • Try
      • B(F);P_SPINP(H)
      • Threat
        • QAR1(E),XP(f)
      • Vars
        • B(h);SBLOCK::QAB(E)
        • S(a);OGATE::P(B),XS(a)
        • P(e);N_GUARD::R1(C)
      • Refutation
        • R(i);CHECK,XP(H)
    • Try
      • Q(E);CHECK
      • Vars
        • S(g);N_GUARD,P_SPINS(g)::QAR2(E),XP(c)
      • Refutation
        • B(h);XQ(E)
    • Try
      • P(A);CHECK
      • Vars
        • P(c);OGATE,XP(A)::QAB1(E),XP(c)
      • Refutation
        • K(d);P-FLIGHT,P_SPINP(e)
  • Actual
    • P(A);
    • Threat
      • QAR1(E),XP(f)
    • Vars
      • P(f);OGATE,XP(A)::QAB1(E)
      • P(c);EP,OGATE,XP(A)::QAB1(E),XP(c)
      • B(h);SBLOCK::QAB(E)
      • S(a);OGATE::P(B),XS(a)
      • S(g);SBLOCK::QAB(E)
      • S(g);OGATE::QAB(E),XB(h)
      • P(e);N_GUARD::R1(C)
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