MESON Chess Problem Database

Problem Display
PID: 154081 (qbQK1B2/p4p2/Np6/N2kp3/4pP2/n3P3/n7/8 w - - 0 1)

Lawton, Howard

Sheffield Guardian (The), 1909

(First published on Fri Jun 4 1909)

qbQK1B2/p4p2/Np6/N2kp3/4pP2/n3P3/n7/8

#2

7 + 10

15239 Valois Notebooks 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Qc6
      • 2.Qxc6#
    • 1...Bc7+
      • 2.Sxc7#
    • 1...Sc1
      • 2.Sb4#
    • 1...Sc3
      • 2.Sb4#
    • 1...Sb4
      • 2.Sxb4#
    • 1...Sb1
      • 2.Qc4#
    • 1...Sc2
      • 2.Qc4#
    • 1...Sc4
      • 2.Qxc4#
    • 1...Sb5
      • 2.Qc4#
  • Keys
    • 1.f5!
      • 1...Bc7+
        • 2.Sxc7#
      • 1...bxa5
        • 2.Qc5#
      • 1...Qc6
        • 2.Qxc6#
      • 1...Qb7
        • 2.Qxb7#
      • 1...Bd6
        • 2.Qxa8#
      • 1...Sc1
        • 2.Sb4#
      • 1...Sc3
        • 2.Sb4#
      • 1...Sb4
        • 2.Sxb4#
      • 1...Sb1
        • 2.Qc4#
      • 1...Sc2
        • 2.Qc4#
      • 1...Sc4
        • 2.Qxc4#
      • 1...Sb5
        • 2.Qc4#
      • 1...b5
        • 2.Qc5#
      • 1...f6
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • Q(i);N_GUARD::QAB1(E),XQ(i)
    • B(j);CHECK,N_GUARD,P_PINQ(E)::S(D),XB(j)
    • S(a);N_GUARD::S(D)
    • S(a);N_GUARD::S(D),XS(a)
    • S(b);N_GUARD::QAB1(E)
    • S(b);N_GUARD::QAB1(E),XS(b)
  • Actual
    • P(B);
    • Vars
      • B(j);CHECK,N_GUARD,P_PINQ(E)::S(D),XB(j)
      • P(f);N_GUARD,XS(C)::QAR1(E)
      • Q(i);N_GUARD::QAB1(E),XQ(i)
      • Q(i);N_GUARD::QAB(E),XQ(i)
      • B(j);OGATE,P_PINQ(E)::QAB(E),XQ(i)
      • S(a);N_GUARD::S(D)
      • S(a);N_GUARD::S(D),XS(a)
      • S(b);N_GUARD::QAB1(E)
      • S(b);N_GUARD::QAB1(E),XS(b)
      • P(f);N_GUARD::QAR1(E)
      • P(h);N_GUARD::QAB1(E)
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