MESON Chess Problem Database

Problem Display
PID: 182359 (4nr2/1N2Nq2/2P1k3/6P1/KQp1p1P1/8/3P4/8 w - - 0 1)

Gold, Samuel

Pesti Naplo, 1906

4nr2/1N2Nq2/2P1k3/6P1/KQp1p1P1/8/3P4/8

#2

8 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sd6
      • 2.Qxd6#
    • 1...Sf6
      • 2.Qd6#
    • 1...Sc7
      • 2.Qd6#
    • 1...Sg7
      • 2.Qd6#
    • 1...c3
      • 2.Qxe4#
  • Tries
    • 1.Qc5?
      • threat
        • 2.Sd8#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sf6
        • 2.Qd6#
      • 1...Sc7
        • 2.Qd6#
      • 1...Sg7
        • 2.Qd6#
      • 1...Qxe7!
  • Keys
    • 1.d4!
      • threat
        • 2.Sd8#
      • 1...Qxe7
        • 2.Qxc4#
      • 1...cxd4 ep
        • 2.Qxe4#
      • 1...exd4 ep
        • 2.Qe1#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sf6
        • 2.Qd6#
      • 1...Sc7
        • 2.Qd6#
      • 1...Sg7
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(e);N_GUARD::QAR1(C),XS(e)
    • S(e);N_GUARD::QAR1(C)
    • P(a);OGATE::QAR2(C),XP(b)
  • Tries
    • Try
      • Q(C);
      • Threat
        • S(G)
      • Vars
        • S(e);N_GUARD::QAR1(C),XS(e)
        • S(e);N_GUARD::QAR1(C)
      • Refutation
        • Q(d);XS(H)
  • Actual
    • P(A);
    • Threat
      • S(G)
    • Vars
      • Q(d);SBLOCK,XS(H)::QAB(C),XP(a)
      • P(a);EP,OGATE,XP(A)::QAR2(C),XP(b)
      • P(b);EP,OGATEB,XP(A)::QAR(C)
      • S(e);N_GUARD::QAR1(C),XS(e)
      • S(e);N_GUARD::QAR1(C)
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Developed and maintained by Brian Stephenson.
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