MESON Chess Problem Database

Problem Display
PID: 8007 (3k1N2/3B2n1/P2P4/3n4/8/8/3P4/2KQ4 w - - 0 1)

Rice, John Michael

Chess Problems for Solving, 1995

3k1N2/3B2n1/P2P4/3n4/8/8/3P4/2KQ4

#2

7 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Qc2?
      • threat
        • 2.Qc8#
      • 1...Sb6
        • 2.Qc7#
      • 1...Sc7
        • 2.Qxc7#
      • 1...Se7
        • 2.Qc7#
      • 1...Sc3!
    • 1.Qb3?
      • threat
        • 2.Qb8#
      • 1...Sb6
        • 2.Qxb6#
      • 1...Se7
        • 2.Qb6#
      • 1...Sb4!
    • 1.Qh5?
      • 1...Se3
        • 2.Qh4#
        • 2.Qa5#
        • 2.Qg5#
      • 1...Sc3
        • 2.Qh4#
        • 2.Qa5#
        • 2.Qg5#
      • 1...Sb4
        • 2.Qh4#
        • 2.Qa5#
        • 2.Qg5#
      • 1...Sf4
        • 2.Qh4#
        • 2.Qa5#
        • 2.Qg5#
      • 1...Sb6
        • 2.Qh4#
        • 2.Qg5#
      • 1...Sf6
        • 2.Qa5#
      • 1...Sc7
        • 2.Qh4#
        • 2.Qg5#
      • 1...Se7
        • 2.Qa5#
      • 1...Sf5
        • 2.Qe8#
      • 1...Se6
        • 2.Qe8#
      • 1...Se8
        • 2.Qxe8#
      • 1...Sxh5!
    • 1.Qe1?
      • 1...Se3
        • 2.Qh4#
      • 1...Sc3
        • 2.Qh4#
        • 2.Qe7#
      • 1...Sb4
        • 2.Qh4#
        • 2.Qe7#
      • 1...Sf4
        • 2.Qh4#
        • 2.Qe7#
      • 1...Sb6
        • 2.Qh4#
        • 2.Qe7#
      • 1...Sf6
        • 2.Qe7#
      • 1...Sc7
        • 2.Qh4#
        • 2.Qe7#
      • 1...Se7
        • 2.Qxe7#
      • 1...Sf5
        • 2.Qe8#
      • 1...Sh5
        • 2.Qe8#
      • 1...Se8
        • 2.Qxe8#
      • 1...Se6!
  • Keys
    • 1.Qa4!
      • 1...Se3
        • 2.Qh4#
        • 2.Qa5#
      • 1...Sc3
        • 2.Qh4#
        • 2.Qa5#
      • 1...Sb4
        • 2.Qa5#
      • 1...Sf4
        • 2.Qa5#
      • 1...Sb6
        • 2.Qh4#
      • 1...Sf6
        • 2.Qa5#
      • 1...Sc7
        • 2.Qh4#
      • 1...Se7
        • 2.Qa5#
      • 1...Sf5
        • 2.Se6#
      • 1...Sh5
        • 2.Se6#
      • 1...Se6
        • 2.Sxe6#
      • 1...Se8
        • 2.Se6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • S(a);N_GUARD::QAB1(B)
        • S(a);N_GUARD::QAB1(B),XS(a)
      • Refutation
        • S(a);
    • Try
      • Q(B);
      • Threat
        • QAR2(B)
      • Vars
        • S(a);N_GUARD::QAB(B),XS(a)
        • S(a);N_GUARD::QAB(B)
      • Refutation
        • S(a);
    • Try
      • Q(B);
      • Vars
        • S(a);OGATE::QAB(B)
        • S(b);N_GUARD::QAR1(B)
        • S(b);N_GUARD::QAR1(B),XS(b)
      • Refutation
        • S(b);XQ(B)
    • Try
      • Q(B);
      • Vars
        • S(a);N_GUARD::QAB(B)
        • S(a);N_GUARD::QAB1(B)
        • S(a);N_GUARD::QAB1(B),XS(a)
        • S(b);N_GUARD::QAR1(B)
        • S(b);N_GUARD::QAR1(B),XS(b)
      • Refutation
        • S(b);
  • Actual
    • Q(B);
    • Vars
      • S(a);N_GUARD::QAB(B)
      • S(b);N_GUARD::S(G)
      • S(b);N_GUARD::S(G),XS(b)
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