MESON Chess Problem Database

Problem Display
PID: 71773 (1n5Q/4p1qr/3PN3/1P1k1BP1/1PbN4/2R3B1/4p3/3nR1K1 w - - 0 1)

Swindley, Cyril P

British Chess Magazine, 1978

1n5Q/4p1qr/3PN3/1P1k1BP1/1PbN4/2R3B1/4p3/3nR1K1

#2

12 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd4+
      • 2.Qxd4#
    • 1...Qe5
      • 2.Qxe5#
    • 1...Qh6
      • 2.Sc7#
      • 2.Qe5#
    • 1...Qf8
      • 2.Sc7#
      • 2.Qe5#
    • 1...Qxg5
      • 2.Sc7#
      • 2.Qe5#
    • 1...Qg6
      • 2.Sc7#
      • 2.Qe5#
    • 1...Qf7
      • 2.Sc7#
      • 2.Qe5#
    • 1...Qg8
      • 2.Sc7#
      • 2.Qe5#
    • 1...Rh1+
      • 2.Qxh1#
    • 1...Ba2
      • 2.Rc5#
    • 1...Bb3
      • 2.Rc5#
    • 1...Bd3
      • 2.Rc5#
    • 1...Bxb5
      • 2.Rc5#
    • 1...Sa6
      • 2.Qa8#
    • 1...Sd7
      • 2.Qa8#
  • Tries
    • 1.Sc2?
      • threat
        • 2.Sc7#
      • 1...Qd4+
        • 2.Qxd4#
      • 1...Rh1+
        • 2.Qxh1#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Sa6
        • 2.Qa8#
      • 1...exd6!
    • 1.Sb3?
      • threat
        • 2.Sc7#
      • 1...Qd4+
        • 2.Qxd4#
      • 1...Rh1+
        • 2.Qxh1#
      • 1...Bxb3
        • 2.Rc5#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Sa6
        • 2.Qa8#
      • 1...exd6!
    • 1.Sf3?
      • threat
        • 2.Sc7#
      • 1...Qd4+
        • 2.Qxd4#
      • 1...exd6
        • 2.Sf4#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Sa6
        • 2.Qa8#
      • 1...Rh1+!
  • Keys
    • 1.Sxe2!
      • threat
        • 2.Sc7#
      • 1...Qd4+
        • 2.Qxd4#
      • 1...Rh1+
        • 2.Qxh1#
      • 1...Bxe2
        • 2.Rc5#
      • 1...exd6
        • 2.S2f4#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Sa6
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • Q(f);CHECK,OGATE,XS(F)::QAR1(L),XQ(f)
    • Q(f);OGATE::QAR1(L),XQ(f)
    • R(g);CHECK,OGATE::QAB(L),XR(g)
    • B(c);OGATE::R1(C)
    • B(c);OGATE,XP(G)::R1(C)
    • S(h);OGATE::QAB(L)
  • Tries
    • Try
      • S(F);
      • Threat
        • S(K)
      • Vars
        • Q(f);CHECK,OGATE::QAR1(L),XQ(f)
        • R(g);CHECK,OGATE::QAB(L),XR(g)
        • Q(f);OGATE::QAR1(L),XQ(f)
        • S(h);OGATE::QAB(L)
      • Refutation
        • P(e);XP(J)
    • Try
      • S(F);
      • Threat
        • S(K)
      • Vars
        • Q(f);CHECK,OGATE::QAR1(L),XQ(f)
        • R(g);CHECK,OGATE::QAB(L),XR(g)
        • B(c);OGATE,XS(F)::R1(C)
        • Q(f);OGATE::QAR1(L),XQ(f)
        • S(h);OGATE::QAB(L)
      • Refutation
        • P(e);XP(J)
    • Try
      • S(F);
      • Threat
        • S(K)
      • Vars
        • Q(f);CHECK,OGATE::QAR1(L),XQ(f)
        • P(e);SBLOCK,XP(J)::S(K)
        • Q(f);OGATE::QAR1(L),XQ(f)
        • S(h);OGATE::QAB(L)
      • Refutation
        • R(g);CHECK
  • Actual
    • S(F);XP(b)
    • Threat
      • S(K)
    • Vars
      • Q(f);CHECK,OGATE::QAR1(L),XQ(f)
      • R(g);CHECK,OGATE::QAB(L),XR(g)
      • B(c);OGATE,XS(F)::R1(C)
      • P(e);SBLOCK,XP(J)::S(F)
      • Q(f);OGATE::QAR1(L),XQ(f)
      • S(h);OGATE::QAB(L)
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