MESON Chess Problem Database

Problem Display
PID: 987 (2Q3b1/8/1p3n2/8/4P2R/1PPkp3/2R3B1/2Kn4 w - - 0 1)

Shire, David J

The Problemist Supplement, 1995

2Q3b1/8/1p3n2/8/4P2R/1PPkp3/2R3B1/2Kn4

#2

8 + 6

4849 The Sushkov Theme 1999
3256 David Shire Selected Chess Problems 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Bc4
      • 2.Qxc4#
    • 1...Bh7
      • 2.Qc4#
    • 1...Sxc3
      • 2.Qxc3#
    • 1...Sxe4
      • 2.Bxe4#
    • 1...Sd5
      • 2.Qc4#
  • Tries
    • 1.Qh3?
      • threat
        • 2.Bf1#
      • 1...Sxc3
        • 2.Rd2#
      • 1...Sg4!
    • 1.Qa6+?
      • 1...Bc4
        • 2.Qxc4#
      • 1...b5!
    • 1.Qc5?
      • threat
        • 2.Qd4#
      • 1...Sxc3
        • 2.Qxc3#
      • 1...bxc5!
    • 1.e5?
      • threat
        • 2.Rd4#
      • 1...Sxc3
        • 2.Qxc3#
      • 1...Sg4
        • 2.Qf5#
      • 1...Se4
        • 2.Bxe4#
      • 1...e2!
  • Keys
    • 1.Rh3!
      • threat
        • 2.Rd2#
      • 1...Sxe4
        • 2.Bf1#
      • 1...Bc4
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • B(f);N_GUARD::QAB1(H),XB(f)
    • B(f);N_GUARD::QAB1(H)
    • S(a);OGATE,XP(E)::QAR1(H),XS(a)
    • S(e);OGATE,XP(F)::B(C),XS(e)
    • S(e);S_CUTB(f)::QAB1(H)
  • Tries
    • Try
      • Q(H);P_PINP(c)
      • Threat
        • B(C)
      • Vars
        • S(a);SBLOCK,XP(E)::R1(B)
      • Refutation
        • S(e);
    • Try
      • Q(H);CHECK
      • Vars
        • B(f);N_GUARD,P_SPINB(f)::QAB1(H),XB(f)
      • Refutation
        • P(d);P_SPINP(d)
    • Try
      • Q(H);
      • Threat
        • QAR1(H)
      • Vars
        • S(a);OGATE,XP(E)::QAR1(H),XS(a)
      • Refutation
        • P(d);XQ(H)
    • Try
      • P(F);
      • Threat
        • R1(G)
      • Vars
        • S(a);OGATE,XP(E)::QAR1(H),XS(a)
        • S(e);N_GUARD::QAB(H)
        • S(e);N_GUARD::B(C),XS(e)
      • Refutation
        • P(c);
  • Actual
    • R(G);P_PINP(c)
    • Threat
      • R1(B)
    • Vars
      • S(e);SBLOCK,XP(F)::B(C)
      • B(f);N_GUARD::QAB1(H),XB(f)
HTML5 logo

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).