MESON Chess Problem Database

Problem Display
PID: 10498 (8/bK2QN2/2pp4/1n1kpp2/1BrPp3/1P6/p2rn1N1/q2R1b2 w - - 0 1)

Rice, John Michael

1st HM., Die Schwalbe, 1965/I

8/bK2QN2/2pp4/1n1kpp2/1BrPp3/1P6/p2rn1N1/q2R1b2

#2

8 + 14

3174 The Two-move Chess Problem Tradition and Development 1966
23 Die Schwalbe 1969
3772 FIDE Album (1965-1967) 1976
5174 Chess Problem Spectrum 2003

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd4
      • 2.Rxd2#
    • 1...Rb2
      • 2.Se3#
    • 1...Rdc2
      • 2.Se3#
    • 1...Rdxd4
      • 2.Se3#
    • 1...Rcxd4
      • 2.Se3#
    • 1...Sexd4
      • 2.Se3#
    • 1...Sa3
      • 2.Qxd6#
    • 1...Sc3
      • 2.Qxd6#
    • 1...Sbxd4
      • 2.Se3#
      • 2.Qxd6#
    • 1...Sc7
      • 2.Qxd6#
  • Tries
    • 1.Qe6+?
      • 1...Kxd4
        • 2.Rxd2#
        • 2.Qxc4#
      • 1...Kxe6!
  • Keys
    • 1.Sxd6!
      • threat
        • 2.Qxe5#
      • 1...Sxd6+
        • 2.Qxd6#
      • 1...Kxd4
        • 2.Rxd2#
      • 1...Qxd4
        • 2.Qf7#
      • 1...Rdxd4
        • 2.Se3#
        • 2.Qf7#
        • 2.bxc4#
      • 1...Rcxd4
        • 2.Se3#
        • 2.Qf7#
      • 1...Bxd4
        • 2.Qf7#
        • 2.bxc4#
      • 1...Sexd4
        • 2.Se3#
      • 1...Sbxd4
        • 2.Se3#
        • 2.bxc4#
      • 1...exd4
        • 2.bxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • K(i);OGATEB,P-FLIGHT,P_SPINR(d),XP(E)::R(A),XR(d)
    • R(d);::S(B)
    • R(d);P_SPINR(d),XP(E)::S(B)
    • R(f);SBLOCK,XP(E)::S(B)
    • S(e);SBLOCK,XP(E)::S(B)
    • S(h);N_GUARD::QAR1(G),XP(m)
  • Tries
    • Try
      • Q(G);CHECK
      • Refutation
        • K(i);S_FLIGHT,XQ(G)
  • Actual
    • S(H);XP(m)
    • Threat
      • QAR1(G),XP(j)
    • Vars
      • S(h);CHECK,OGATE,XS(H)::QAR1(G),XS(h)
      • K(i);OGATEB,P-FLIGHT,P_SPINR(d),XP(E)::R(A),XR(d)
      • Q(a);SBLOCK,XP(E)::QAB(G)
      • S(e);SBLOCK,XP(E)::S(B)
      • P(j);SBLOCK,XP(E)::P(C),XR(f)
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