MESON Chess Problem Database

Problem Display
PID: 19104 (Bn1Nb2K/2n5/pp1p4/2k5/r1PR1p2/b1P2P2/1p1Q3B/8 w - - 0 1)

Way, WA

Hampshire Post, 1912

(First published on Fri May 10 1912)

Bn1Nb2K/2n5/pp1p4/2k5/r1PR1p2/b1P2P2/1p1Q3B/8

#2

9 + 11

14868 Pirnie Collection 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sb5
      • 2.Se6#
    • 1...Sd5
      • 2.Se6#
    • 1...Se6
      • 2.Sxe6#
    • 1...Sc6
      • 2.Sb7#
  • Tries
    • 1.Rd5+?
      • 1...Sxd5
        • 2.Qd4#
        • 2.Qxd5#
      • 1...Kxc4!
    • 1.Qxf4?
      • threat
        • 2.Qxd6#
      • 1...Sb5
        • 2.Se6#
        • 2.Rd5#
      • 1...d5
        • 2.Qd6#
        • 2.Qf8#
      • 1...Rxc4!
    • 1.Qf2?
      • threat
        • 2.Re4#
        • 2.Rxf4#
      • 1...Rxc4
        • 2.Rd5#
      • 1...Sb5
        • 2.Se6#
      • 1...Sd5
        • 2.Se6#
      • 1...Se6
        • 2.Sxe6#
      • 1...Sc6
        • 2.Sb7#
      • 1...d5!
  • Keys
    • 1.Qe3!
      • threat
        • 2.Rxf4#
      • 1...Rxc4
        • 2.Rd5#
      • 1...fxe3
        • 2.Bxd6#
      • 1...d5
        • 2.Qe7#
      • 1...Sb5
        • 2.Se6#
      • 1...Sd5
        • 2.Se6#
      • 1...Se6
        • 2.Sxe6#
      • 1...Sc6
        • 2.Sb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(i);N_GUARD::S(H)
    • S(i);N_GUARD::S(H),XS(i)
    • S(j);SBLOCK::S(H)
  • Tries
    • Try
      • R(F);CHECK
      • Refutation
        • K(e);P-FLIGHT,XP(E)
    • Try
      • Q(A);XP(d)
      • Threat
        • QAB1(A),XP(h)
      • Refutation
        • R(c);XP(E)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);SBLOCK,XP(E)::QAB(A)+R(F),DCHECK
        • S(i);N_GUARD::S(H)
        • S(i);N_GUARD::S(H),XS(i)
        • S(j);SBLOCK::S(H)
      • Refutation
        • P(h);
  • Actual
    • Q(A);
    • Threat
      • QAB(A)+R(F),XP(d)
    • Vars
      • R(c);SBLOCK,XP(E)::QAB(A)+R(F),DCHECK
      • P(d);OGATE,XQ(A)::B(B),XP(h)
      • P(h);OGATEB::QAB(A)
      • S(i);N_GUARD::S(H)
      • S(i);N_GUARD::S(H),XS(i)
      • S(j);SBLOCK::S(H)
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