MESON Chess Problem Database

Problem Display
PID: 58969 (8/p3K3/6B1/p1nNk3/8/4P1p1/2p4n/3b3Q w - - 0 1)

Rothwell, Stephen

Troll, 1998

8/p3K3/6B1/p1nNk3/8/4P1p1/2p4n/3b3Q

#2

5 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sg4
      • 2.Qh5#
    • 1...Sb3
      • 2.Qe4#
    • 1...Sd3
      • 2.Qe4#
    • 1...Sa4
      • 2.Qe4#
    • 1...Se4
      • 2.Qxe4#
    • 1...Sa6
      • 2.Qe4#
    • 1...Se6
      • 2.Qe4#
    • 1...Sb7
      • 2.Qe4#
    • 1...Sd7
      • 2.Qe4#
  • Tries
    • 1.Sc3?
      • threat
        • 2.Qd5#
      • 1...Sf3
        • 2.Qh8#
      • 1...Se4
        • 2.Qxe4#
      • 1...g2
        • 2.Qxh2#
      • 1...Bf3!
    • 1.Sb4?
      • threat
        • 2.Sc6#
        • 2.Qd5#
      • 1...Bf3
        • 2.Qa1#
      • 1...Sf3
        • 2.Qh8#
      • 1...Se4
        • 2.Qxe4#
      • 1...g2
        • 2.Qxh2#
      • 1...axb4!
    • 1.Sf4?
      • threat
        • 2.Qd5#
      • 1...Bf3
        • 2.Qa1#
      • 1...Sf3
        • 2.Qh8#
      • 1...Se4
        • 2.Qxe4#
      • 1...g2!
    • 1.Sb6?
      • threat
        • 2.Sc4#
        • 2.Qd5#
      • 1...c1Q
        • 2.Qd5#
      • 1...c1R
        • 2.Qd5#
      • 1...Be2
        • 2.Qd5#
        • 2.Qa1#
      • 1...Bf3
        • 2.Qa1#
      • 1...Sf3
        • 2.Qh8#
      • 1...Se4
        • 2.Qxe4#
      • 1...g2
        • 2.Qxh2#
      • 1...axb6!
    • 1.Sf6?
      • threat
        • 2.Qd5#
      • 1...Bf3
        • 2.Qa1#
      • 1...Se4
        • 2.Qxe4#
      • 1...g2
        • 2.Qxh2#
      • 1...Sf3!
  • Keys
    • 1.Sc7!
      • threat
        • 2.Qd5#
      • 1...Bf3
        • 2.Qa1#
      • 1...Sf3
        • 2.Qh8#
      • 1...Se4
        • 2.Qxe4#
      • 1...g2
        • 2.Qxh2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 8
  • Sets
    • S(c);OGATE::QAR(A)
    • S(f);N_GUARD::QAR1(A)
    • S(f);N_GUARD::QAR1(A),XS(f)
  • Tries
    • Try
      • S(C);
      • Threat
        • QAR1(A)
      • Vars
        • S(c);OGATE::QAB(A)
        • S(f);N_GUARD::QAR1(A),XS(f)
        • P(d);OGATEB::QAB(A),XS(c)
      • Refutation
        • B(a);
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);OGATE::QAB(A)
        • S(c);OGATE::QAB(A)
        • S(f);N_GUARD::QAR1(A),XS(f)
        • P(d);OGATEB::QAB(A),XS(c)
      • Refutation
        • P(e);XS(C)
    • Try
      • S(C);
      • Threat
        • QAR1(A)
      • Vars
        • B(a);OGATE::QAB(A)
        • S(c);OGATE::QAB(A)
        • S(f);N_GUARD::QAR1(A),XS(f)
      • Refutation
        • P(d);
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::QAR1(A)
        • B(a);OGATE::QAB(A)
        • S(c);OGATE::QAB(A)
        • S(f);N_GUARD::QAR1(A),XS(f)
        • P(d);OGATEB::QAB(A),XS(c)
      • Refutation
        • P(h);XS(C)
    • Try
      • S(C);
      • Threat
        • QAR1(A)
      • Vars
        • B(a);OGATE::QAB(A)
        • S(f);N_GUARD::QAR1(A),XS(f)
        • P(d);OGATEB::QAB(A),XS(c)
      • Refutation
        • S(c);
  • Actual
    • S(C);
    • Threat
      • QAR1(A)
    • Vars
      • B(a);OGATE::QAB(A)
      • S(c);OGATE::QAB(A)
      • S(f);N_GUARD::QAR1(A),XS(f)
      • P(d);OGATEB::QAB(A),XS(c)
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