MESON Chess Problem Database

Problem Display
PID: 103993 (8/8/8/1p2N1p1/1P2PpN1/1p3B2/nK1kp3/6Q1 w - - 0 1)

Ceriani, Luigi

Eskilstuna Kuriren, 1926

8/8/8/1p2N1p1/1P2PpN1/1p3B2/nK1kp3/6Q1

#2

7 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sc1
      • 2.Qxc1#
    • 1...Sc3
      • 2.Qc1#
    • 1...Sxb4
      • 2.Qc1#
    • 1...e1Q
      • 2.Qd4#
    • 1...e1S
      • 2.Qf2#
    • 1...e1B
      • 2.Qd4#
    • 1...e1R
      • 2.Qd4#
  • Tries
    • 1.Sh2?
      • 1...Sxb4
        • 2.Qc1#
      • 1...e1Q
        • 2.Qd4#
      • 1...e1S
        • 2.Sf1#
        • 2.Qf2#
      • 1...e1B
        • 2.Sf1#
        • 2.Qd4#
      • 1...e1R
        • 2.Qd4#
      • 1...Sc1
        • 2.Qxc1#
      • 1...Sc3
        • 2.Qc1#
      • 1...g4!
    • 1.Sf6?
      • 1...Sxb4
        • 2.Qc1#
      • 1...e1Q
        • 2.Qd4#
      • 1...e1S
        • 2.Qf2#
      • 1...e1B
        • 2.Qd4#
      • 1...e1R
        • 2.Qd4#
      • 1...Sc1
        • 2.Qxc1#
      • 1...Sc3
        • 2.Qc1#
      • 1...g4!
    • 1.Sh6?
      • 1...Sxb4
        • 2.Qc1#
      • 1...e1Q
        • 2.Qd4#
      • 1...e1S
        • 2.Qf2#
      • 1...e1B
        • 2.Qd4#
      • 1...e1R
        • 2.Qd4#
      • 1...Sc1
        • 2.Qxc1#
      • 1...Sc3
        • 2.Qc1#
      • 1...g4!
    • 1.Sc4+?
      • 1...Kd3
        • 2.Sge5#
      • 1...bxc4!
    • 1.Qe3+?
      • 1...Kd1
        • 2.Qxe2#
      • 1...Ke1
        • 2.Qxe2#
      • 1...fxe3!
  • Keys
    • 1.Qb1!
      • 1...Sxb4
        • 2.Qc1#
      • 1...Sc1
        • 2.Qxc1#
      • 1...e1Q
        • 2.Qd3#
      • 1...e1S
        • 2.Qd1#
      • 1...e1B
        • 2.Qd3#
        • 2.Qd1#
      • 1...e1R
        • 2.Qd3#
      • 1...Sc3
        • 2.Qc1#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 3
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • S(a);N_GUARD::QAB1(A),XS(a)
    • S(a);N_GUARD::QAB1(A)
    • S(a);N_GUARD,XP(D)::QAB1(A)
    • P(c);SBLOCK::QAR2(A)
    • P(c);OGATEB::QAR2(A)
  • Tries
    • Try
      • S(F);
      • Vars
        • S(a);N_GUARD,XP(D)::QAB1(A)
        • P(c);SBLOCK::QAR2(A)
        • S(a);N_GUARD::QAB1(A),XS(a)
        • S(a);N_GUARD::QAB1(A)
      • Refutation
        • P(g);
    • Try
      • S(F);
      • Vars
        • S(a);N_GUARD,XP(D)::QAB1(A)
        • P(c);SBLOCK::QAR2(A)
        • P(c);OGATEB::QAR2(A)
        • S(a);N_GUARD::QAB1(A),XS(a)
        • S(a);N_GUARD::QAB1(A)
      • Refutation
        • P(g);
    • Try
      • S(F);
      • Vars
        • S(a);N_GUARD,XP(D)::QAB1(A)
        • P(c);SBLOCK::QAR2(A)
        • P(c);OGATEB::QAR2(A)
        • S(a);N_GUARD::QAB1(A),XS(a)
        • S(a);N_GUARD::QAB1(A)
      • Refutation
        • P(g);
    • Try
      • S(G);CHECK
      • Vars
        • K(b);P-FLIGHT::S(F)
      • Refutation
        • P(f);XS(G)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT,P_SPINP(c)::QAB1(A),XP(c)
        • K(b);P_SPINP(c),S_FLIGHT::QAR1(A),XP(c)
      • Refutation
        • P(e);XQ(A)
  • Actual
    • Q(A);
    • Vars
      • S(a);N_GUARD,XP(D)::QAB1(A)
      • S(a);N_GUARD::QAB1(A),XS(a)
      • P(c);SBLOCK::QAR1(A)
      • P(c);N_GUARD::QAR1(A)
      • S(a);N_GUARD::QAB1(A)
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