MESON Chess Problem Database

Problem Display
PID: 9874 (8/4Q3/1qp1N2b/1p3n2/2B5/2BNk1p1/6P1/R3K2R w QK - 0 1)

Lipton, Michael

4th Place, Match: Great Britain - Israel, 1960-1961

8/4Q3/1qp1N2b/1p3n2/2B5/2BNk1p1/6P1/R3K2R

#2

9 + 7

3749 FIDE Album (1959-1961) 1966
3174 The Two-move Chess Problem Tradition and Development 1966
5862 An ABC of Chess Problems 1970
4640 Chess Wizardry: The New ABC of Chess Problems 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Sec5#
      • 2.Sg5#
    • 1...Sd4
      • 2.Sxd4#
    • 1...Sh4
      • 2.Sd4#
      • 2.Sef4#
      • 2.Sec5#
      • 2.Sg5#
      • 2.Sc7#
      • 2.Sg7#
      • 2.Sd8#
      • 2.Sf8#
    • 1...Sg7
      • 2.Sxg7#
  • Tries
    • 1.Kd1?
      • threat
        • 2.Re1#
      • 1...Ke4
        • 2.Sec5#
        • 2.Sg5#
      • 1...Sd4
        • 2.Sxd4#
      • 1...bxc4!
    • 1.Kf1?
      • threat
        • 2.Re1#
      • 1...Ke4
        • 2.Sec5#
        • 2.Sg5#
      • 1...Sd4
        • 2.Sxd4#
      • 1...bxc4!
    • 1.Ra2?
      • threat
        • 2.Re2#
      • 1...Ke4
        • 2.Sec5#
        • 2.Sg5#
      • 1...Sd4
        • 2.Sxd4#
      • 1...bxc4!
    • 1.Qc5+?
      • 1...Ke4
        • 2.Qe5#
      • 1...Sd4
        • 2.Qe5#
      • 1...Qxc5!
    • 1.0-0?
      • threat
        • 2.Rae1#
        • 2.Rfe1#
      • 1...Ke2+
        • 2.Sd4#
      • 1...Ke4+
        • 2.Sec5#
      • 1...Sd4
        • 2.Sxd4#
      • 1...bxc4!
  • Keys
    • 1.0-0-0!
      • threat
        • 2.Rde1#
        • 2.Rhe1#
      • 1...Ke2+
        • 2.Sef4#
      • 1...Ke4+
        • 2.Sg5#
      • 1...bxc4
        • 2.Rhe1#
      • 1...Sd4
        • 2.Sxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(d);N_GUARD::QAR(I)+S(H),XS(d)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Threat
        • R(C)
      • Vars
        • S(d);N_GUARD::QAR(I)+S(H),XS(d)
      • Refutation
        • P(c);XB(G)
    • Try
      • K(B);P-FLIGHT
      • Threat
        • R(A)
      • Vars
        • S(d);N_GUARD::QAR(I)+S(H),XS(d)
      • Refutation
        • P(c);XB(G)
    • Try
      • R(A);
      • Threat
        • R1(A)
      • Vars
        • S(d);N_GUARD::QAR(I)+S(H),XS(d)
      • Refutation
        • P(c);XB(G)
    • Try
      • Q(I);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(I)
        • S(d);P_SPINS(d)::QAR2(I)
      • Refutation
        • Q(e);XQ(I)
    • Try
      • K(B);0-0
      • Threat
        • DUALS(2)
      • Vars
        • K(a);CHECK,P-FLIGHT::QAR(I)+S(H),DCHECK
        • S(d);N_GUARD::QAR(I)+S(H),XS(d)
      • Refutation
        • P(c);XB(G)
  • Actual
    • K(B);0-0-0
    • Threat
      • DUALS(2)
    • Vars
      • K(a);CHECK,P-FLIGHT::QAR(I)+S(H),DCHECK
      • P(c);XB(G)::R(C)
      • S(d);N_GUARD::QAR(I)+S(H),XS(d)
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