MESON Chess Problem Database

Problem Display
PID: 23908 (b1Nn2R1/Pnk5/B3P3/p7/P2N4/8/7P/2KQ4 w - - 0 1)

Leschemelle, Matthieu

diagrammes, 1997

b1Nn2R1/Pnk5/B3P3/p7/P2N4/8/7P/2KQ4

#2

10 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc8
      • 2.Qc2#
    • 1...Sc6
      • 2.Sb5#
  • Tries
    • 1.Sb3?
      • threat
        • 2.Qd7#
      • 1...Kc6
        • 2.Qd7#
      • 1...Kxc8
        • 2.Qc2#
        • 2.Qd7#
        • 2.Qxd8#
      • 1...Sc5
        • 2.Qd6#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sxe6!
    • 1.Sb5+?
      • 1...Kxc8
        • 2.Rxd8#
        • 2.Qc2#
        • 2.Qd7#
        • 2.Qxd8#
      • 1...Kc6!
    • 1.Qc2+?
      • 1...Sc6
        • 2.Sb5#
        • 2.Qxc6#
      • 1...Sc5!
    • 1.Qb3?
      • 1...Kxc8
        • 2.Qc2#
        • 2.Qc4#
        • 2.Qc3#
      • 1...Sc5
        • 2.Qg3#
        • 2.Qb6#
        • 2.Qb8#
      • 1...Sd6
        • 2.Qb6#
        • 2.Qb8#
      • 1...Sc6
        • 2.Sb5#
        • 2.Qb6#
      • 1...Sf7
        • 2.Qb6#
      • 1...Sxe6!
    • 1.Qf3?
      • 1...Kxc8
        • 2.Qc6#
        • 2.Qc3#
      • 1...Sxe6
        • 2.Qc6#
        • 2.Qf7#
      • 1...Sc5
        • 2.Sb5#
        • 2.Qg3#
        • 2.Qf4#
      • 1...Sc6
        • 2.Sb5#
        • 2.Qxc6#
      • 1...Sf7
        • 2.Sb5#
        • 2.Qc6#
        • 2.Qxf7#
      • 1...Sd6!
    • 1.Qf1?
      • 1...Kxc8
        • 2.Qc4#
      • 1...Sxe6
        • 2.Qf7#
      • 1...Sc5
        • 2.Qf4#
      • 1...Sc6
        • 2.Sb5#
      • 1...Sf7
        • 2.Qxf7#
      • 1...Sd6!
    • 1.Qh1?
      • 1...Kxc8
        • 2.Qc6#
      • 1...Sxe6
        • 2.Qc6#
      • 1...Sc5
        • 2.Sb5#
      • 1...Sc6
        • 2.Sb5#
        • 2.Qxc6#
      • 1...Sf7
        • 2.Sb5#
        • 2.Qc6#
      • 1...Sd6!
  • Keys
    • 1.Qh5!
      • 1...Kxc8
        • 2.Qc5#
      • 1...Sxe6
        • 2.Qf7#
      • 1...Sc5
        • 2.Qe5#
      • 1...Sd6
        • 2.Qxa5#
      • 1...Sc6
        • 2.Sb5#
      • 1...Sf7
        • 2.Qxf7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(c);P-FLIGHT,P_SPINS(b),XS(I)::QAR(B)
    • S(e);SBLOCK::S(E)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAR1(B)
      • Vars
        • K(c);P-FLIGHT::QAB1(B)
        • S(b);N_GUARD::QAB1(B)
        • S(b);N_GUARD::QAB1(B),XS(b)
      • Refutation
        • S(e);XP(G)
    • Try
      • S(E);CHECK
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(B);CHECK
      • Refutation
        • S(b);P_SPINS(b)
    • Try
      • Q(B);
      • Vars
        • S(e);::QAB1(B)
      • Refutation
        • S(e);XP(G)
    • Try
      • Q(B);
      • Refutation
        • S(b);
    • Try
      • Q(B);
      • Vars
        • K(c);P-FLIGHT,P_SPINS(b),XS(I)::QAR(B)
        • S(e);N_GUARD,XP(G)::QAR(B)
        • S(b);N_GUARD::QAB(B)
        • S(e);SBLOCK::S(E)
        • S(e);N_GUARD::QAR(B),XS(e)
      • Refutation
        • S(b);
    • Try
      • Q(B);
      • Vars
        • K(c);P-FLIGHT,P_SPINS(b),XS(I)::QAR2(B)
        • S(e);N_GUARD,XP(G)::QAR1(B)
        • S(b);::S(E)
      • Refutation
        • S(b);
  • Actual
    • Q(B);
    • Vars
      • K(c);P-FLIGHT,P_SPINS(b),XS(I)::QAR(B)
      • S(e);N_GUARD,XP(G)::QAR(B)
      • S(b);N_GUARD::QAB(B)
      • S(b);N_GUARD::QAB(B),XP(a)
      • S(e);SBLOCK::S(E)
      • S(e);N_GUARD::QAR(B),XS(e)
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