MESON Chess Problem Database

Problem Display
PID: 154386 (1b2N3/1B2r3/3Rp3/1pp5/2k3p1/P4pKb/1BPpqNn1/5Q2 w - - 0 1)

Lawton, Howard

Sheffield Guardian (The), 1910

(First published on Fri Jun 3 1910)

1b2N3/1B2r3/3Rp3/1pp5/2k3p1/P4pKb/1BPpqNn1/5Q2

#2

9 + 12

15239 Valois Notebooks 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Qd3
      • 2.Qxd3#
    • 1...Bxd6+
      • 2.Sxd6#
    • 1...b4
      • 2.Ba6#
    • 1...e5
      • 2.Bd5#
  • Keys
    • 1.Sd3!
      • threat
        • 2.Se5#
      • 1...Qe1+
        • 2.Sxe1#
      • 1...Qf2+
        • 2.Sxf2#
      • 1...Qe5+
        • 2.Sxe5#
      • 1...Bxd6+
        • 2.Sxd6#
      • 1...Qxd3
        • 2.Qxd3#
      • 1...b4
        • 2.Ba6#
      • 1...e5
        • 2.Bd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • Q(b);OGATE::QAB1(A),XQ(b)
    • B(l);CHECK,XR(G)::S(I),XB(l)
    • P(h);OGATEB::B(H)
    • P(j);N_GUARD,N_PINR(G)::B(H)
  • Actual
    • S(D);N_PINQ(b)
    • Threat
      • S(D)
    • Vars
      • Q(b);CHECK::QAB(A)+S(D),XQ(b)
      • Q(b);CHECK,N_PINR(G)::QAB(A)+S(D),DCHECK,XQ(b)
      • B(l);CHECK,XR(G)::S(I),XB(l)
      • Q(b);OGATE,P_SPINQ(b),XS(D)::QAB1(A),XQ(b)
      • P(h);OGATEB::B(H)
      • P(j);N_GUARD,N_PINR(G)::B(H)
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