MESON Chess Problem Database

Problem Display
PID: 225156 (8/3pR2B/5p2/p3Pr1p/RbK1k2n/1p2P3/3BQ1P1/1bN5 w - - 0 1)

Burke, James D

Chess Life, 1950

8/3pR2B/5p2/p3Pr1p/RbK1k2n/1p2P3/3BQ1P1/1bN5

#2

10 + 10

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ba2
      • 2.Qd3#
    • 1...Bd3+
      • 2.Qxd3#
    • 1...Bxd2
      • 2.exf6#
    • 1...Bc5
      • 2.Kxc5#
    • 1...Bd6
      • 2.exd6#
    • 1...Sxg2
      • 2.Qxg2#
    • 1...Sf3
      • 2.Qxf3#
      • 2.gxf3#
    • 1...d5+
      • 2.exd5 ep#
    • 1...d6
      • 2.exd6#
      • 2.exf6#
  • Tries
    • 1.Bxf5+?
      • 1...Sxf5
        • 2.Qf3#
      • 1...Kxf5!
    • 1.Qf1?
      • threat
        • 2.Qf4#
      • 1...Bd3+
        • 2.Qxd3#
      • 1...d5+
        • 2.exd5 ep#
      • 1...Sxg2
        • 2.Bxf5#
        • 2.Qxg2#
        • 2.Qxf5#
      • 1...Sf3
        • 2.Qxf3#
        • 2.gxf3#
      • 1...Sg6!
  • Keys
    • 1.Kb5!
      • threat
        • 2.Qc4#
      • 1...Bd3+
        • 2.Qxd3#
      • 1...Kd5
        • 2.Qc4#
      • 1...Sxg2
        • 2.Qxg2#
      • 1...Sf3
        • 2.Qxf3#
      • 1...d5
        • 2.exf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • B(a);N_GUARD::QAB1(C)
    • B(a);CHECK,N_GUARD::QAB1(C),XB(a)
    • B(c);N_GUARD,XB(B)::R(I)+P(H),XP(i)
    • B(c);::R(F)+K(G),XB(c)
    • B(c);OGATE::R(I)+P(H),XB(c)
    • S(e);OGATE,XP(D)::QAB(C),XS(e)
    • P(j);CHECK,OGATE::R(I)+P(H),XP(j),EP
  • Tries
    • Try
      • B(J);CHECK,XR(g)
      • Vars
        • S(e);XB(J)::QAB1(C)
      • Refutation
        • K(d);S_FLIGHT,XB(J)
    • Try
      • Q(C);
      • Threat
        • QAR1(C)
      • Vars
        • B(a);CHECK,N_GUARD::QAB1(C),XB(a)
        • P(j);CHECK,OGATE::R(I)+P(H),XP(j),EP
      • Refutation
        • S(e);N_SPINR(g)
  • Actual
    • K(G);P_PINB(c),P_SPINP(H),S_FLIGHT
    • Threat
      • QAR2(C)
    • Vars
      • B(a);CHECK,N_GUARD::QAB1(C),XB(a)
      • K(d);N_PINP(H),N_SPINB(c),N_SPINR(g),S_FLIGHT::QAB1(C)
      • S(e);OGATE,XP(D)::QAB(C),XS(e)
      • S(e);N_GUARD::QAB1(C),XS(e)
      • P(j);N_PINP(H),SBLOCK::R(I)+P(H),XP(i)
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).