MESON Chess Problem Database

Problem Display
PID: 10954 (2Q4b/7R/K1NP4/1P1k1p1n/4p2n/Bb4r1/4N3/5Br1 w - - 0 1)

Gold, Samuel

International Chess Magazine, 1885

2Q4b/7R/K1NP4/1P1k1p1n/4p2n/Bb4r1/4N3/5Br1

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Sb4#
    • 1...Rg7
      • 2.Sc3#
    • 1...Be5
      • 2.Se7#
    • 1...Bg7
      • 2.Qg8#
    • 1...Sg6
      • 2.Qg8#
    • 1...Sf4
      • 2.Sxf4#
    • 1...Sf6
      • 2.Sf4#
    • 1...Sg7
      • 2.Sf4#
  • Tries
    • 1.Sd8?
      • threat
        • 2.Qe6#
        • 2.Qc5#
      • 1...e3
        • 2.Qe6#
      • 1...Rc3
        • 2.Qe6#
      • 1...Rg6
        • 2.Qc5#
      • 1...Bd4
        • 2.Qe6#
      • 1...Sf4
        • 2.Qc5#
      • 1...Sg7
        • 2.Qc5#
      • 1...Ke5!
    • 1.Re7?
      • threat
        • 2.Qe6#
      • 1...Kc4
        • 2.Sb4#
      • 1...Sf4
        • 2.Sxf4#
      • 1...Sg7
        • 2.Sf4#
      • 1...Rg6!
  • Keys
    • 1.Rg7!
      • threat
        • 2.Qg8#
      • 1...Kc4
        • 2.Sb4#
      • 1...Rxg7
        • 2.Sc3#
      • 1...Sxg7
        • 2.Sf4#
      • 1...e3
        • 2.Sc3#
      • 1...Rg6
        • 2.Sc3#
      • 1...Sf4
        • 2.Sxf4#
      • 1...Sf6
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • K(f);S_FLIGHT::QAR(I)+S(F)
    • R(c);N_GUARD,S_CUTB(i)::S(B)
    • B(i);SBLOCK::S(F)
    • B(i);S_CUTR(c)::QAB(I)
    • S(e);S_CUTR(c)::QAB(I)
    • S(h);N_GUARD::S(B),XS(h)
    • S(h);N_GUARD::S(B)
  • Tries
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • P(d);::QAB1(I)
        • R(c);::QAB1(I)
        • R(c);P_PINP(G)::QAR1(I)
        • B(i);::QAB1(I)
        • S(h);::QAR1(I)
      • Refutation
        • K(f);P-FLIGHT
    • Try
      • R(H);
      • Threat
        • QAB1(I)
      • Vars
        • K(f);S_FLIGHT::QAR(I)+S(F)
        • S(h);N_GUARD::S(B),XS(h)
        • S(h);N_GUARD::S(B)
      • Refutation
        • R(c);
  • Actual
    • R(H);
    • Threat
      • QAB(I)
    • Vars
      • K(f);S_FLIGHT::QAR(I)+S(F)
      • R(c);N_GUARD,XR(H)::S(B)
      • S(h);N_GUARD,XR(H)::S(B)
      • P(d);S_CUTR(c)::S(B)
      • R(c);N_GUARD::S(B)
      • S(h);N_GUARD::S(B),XS(h)
      • S(h);N_GUARD::S(B)
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