MESON Chess Problem Database

Problem Display
PID: 40371 (5Q1n/1N1Pp3/3p1b2/2RPk1pN/Rp4B1/5P2/1n2K3/6B1 w - - 0 1)

Barnes, Barry Peter

5th Prize, Leipzig Olympic Ty., 1960

5Q1n/1N1Pp3/3p1b2/2RPk1pN/Rp4B1/5P2/1n2K3/6B1

#2

11 + 8

4199 Barnes about Chess Problems 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Bg7
      • 2.Qxe7#
      • 2.Qxg7#
      • 2.Qf5#
    • 1...b3
      • 2.Bh2#
      • 2.Bd4#
      • 2.Re4#
    • 1...e6
      • 2.Qxd6#
      • 2.Qxf6#
  • Tries
    • 1.Sf4?
      • 1...Kxf4
        • 2.Bh2#
      • 1...Sxa4
        • 2.Sd3#
      • 1...dxc5
        • 2.Qb8#
      • 1...Bg7
        • 2.Qf5#
      • 1...Sd1
        • 2.Sd3#
      • 1...Sd3
        • 2.Sxd3#
      • 1...Sc4
        • 2.Sd3#
      • 1...Sg6
        • 2.Sxg6#
      • 1...Sf7
        • 2.Sg6#
      • 1...b3
        • 2.Re4#
      • 1...e6
        • 2.Qxd6#
      • 1...gxf4!
    • 1.Qf7?
      • threat
        • 2.Qe6#
      • 1...e6
        • 2.Qxe6#
        • 2.Qxf6#
      • 1...Sxf7!
    • 1.Qg8?
      • threat
        • 2.Qe6#
      • 1...e6
        • 2.Qxe6#
      • 1...Sf7!
  • Keys
    • 1.Sxd6!
      • 1...Kxd6
        • 2.Qb8#
      • 1...Sxa4
        • 2.Sc4#
      • 1...exd6
        • 2.Qxf6#
      • 1...Bg7
        • 2.Qxe7#
      • 1...Sd1
        • 2.Sc4#
      • 1...Sd3
        • 2.Sc4#
      • 1...Sc4
        • 2.Sxc4#
      • 1...Sg6
        • 2.Sf7#
      • 1...Sf7
        • 2.Sxf7#
      • 1...b3
        • 2.Bh2#
      • 1...e6
        • 2.dxe6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(H);
      • Vars
        • K(c);OGATEB,P_SPINB(f),P_SPINP(b),S_FLIGHT,XS(H)::B(A)
        • S(a);N_GUARD,XR(D)::S(H)
        • P(e);OGATEB,XR(F)::QAB(K)
        • B(f);OGATE::QAR1(K)
        • S(a);N_GUARD::S(H)
        • S(a);N_GUARD::S(H),XS(a)
        • S(h);N_GUARD::S(H),XS(h)
        • S(h);N_GUARD::S(H)
        • P(b);OGATE::R1(D)
        • P(g);OGATE::QAB1(K),XP(e)
      • Refutation
        • P(d);XS(H)
    • Try
      • Q(K);
      • Threat
        • QAR1(K)
      • Refutation
        • S(h);XQ(K)
    • Try
      • Q(K);
      • Threat
        • QAR1(K)
      • Vars
        • P(g);::QAR1(K),XP(g)
      • Refutation
        • S(h);
  • Actual
    • S(I);XP(e)
    • Vars
      • K(c);OGATEB,P_SPINP(g),S_FLIGHT,XS(I)::QAB(K)
      • S(a);N_GUARD,XR(D)::S(I)
      • P(g);N_GUARD,XS(I)::QAB1(K),XB(f)
      • B(f);N_GUARD::QAR2(K),XP(g)
      • S(a);N_GUARD::S(I)
      • S(a);N_GUARD::S(I),XS(a)
      • S(h);N_GUARD::S(I)
      • S(h);N_GUARD::S(I),XS(h)
      • P(b);::B(A)
      • P(g);OGATE::R(F)+P(G),XP(g)
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).