MESON Chess Problem Database

Problem Display
PID: 73775 (bBN2R2/3P2pN/1pn1pb2/1Rq2k1P/2Qp4/3P1nPP/p4rr1/K2B4 w - - 0 1)

Buchwald, Julius

10th Place, Match: Netherlands - USA, 1950

bBN2R2/3P2pN/1pn1pb2/1Rq2k1P/2Qp4/3P1nPP/p4rr1/K2B4

#2

13 + 13

5759 Selected Compositions of Julius Buchwald 2005

SOLUTION

  • SOUND
  • Sets
    • 1...Qe5
      • 2.Sd6#
    • 1...Rh2
      • 2.g4#
    • 1...Se1
      • 2.Bg4#
    • 1...Sg1
      • 2.Bg4#
    • 1...Sd2
      • 2.Bg4#
    • 1...Sh4
      • 2.Bg4#
    • 1...Sg5
      • 2.Bg4#
    • 1...Sb4
      • 2.Se7#
    • 1...Sa5
      • 2.Se7#
    • 1...Sa7
      • 2.Se7#
    • 1...Se7
      • 2.Sxe7#
    • 1...Sd8
      • 2.Se7#
    • 1...g5
      • 2.Rxf6#
    • 1...g6
      • 2.Rxf6#
  • Tries
    • 1.Rxc5+?
      • 1...Sfe5
        • 2.Sd6#
        • 2.Bg4#
      • 1...Sce5
        • 2.Sd6#
        • 2.Se7#
      • 1...e5
        • 2.Sd6#
      • 1...bxc5!
  • Keys
    • 1.Qxd4!
      • threat
        • 2.Sd6#
      • 1...Sfxd4
        • 2.Bg4#
      • 1...Scxd4
        • 2.Se7#
      • 1...e5
        • 2.Qg4#
      • 1...Sfe5
        • 2.Qe4#
      • 1...Sce5
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 14
  • Sets
    • Q(f);::S(L)
    • R(c);N_GUARD::P(D)
    • S(d);OGATE::B(B)
    • S(i);N_GUARD::S(L)
    • S(i);N_GUARD::S(L),XS(i)
    • P(l);N_GUARD::R1(M),XB(k)
  • Tries
    • Try
      • R(G);CHECK,XQ(f)
      • Vars
        • P(j);P_SPINP(j)::S(L)
      • Refutation
        • P(h);XR(G)
  • Actual
    • Q(F);P_SPINQ(F),XP(e)
    • Threat
      • S(L)
    • Vars
      • S(d);OGATE,XQ(F)::B(B)
      • S(i);N_GUARD,XQ(F)::S(L)
      • P(j);N_PINQ(F),N_SPINQ(f)::QAB1(F)
      • S(d);N_PINQ(F),N_SPINQ(f)::QAB1(F)
      • S(i);N_PINQ(F),N_SPINQ(f)::QAR1(F)
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