MESON Chess Problem Database

Problem Display
PID: 22351 (b4b1q/5r2/3p4/4p3/p1p3pn/P1K5/1PPQ4/RN3kBR w - - 0 1)

Barnes, Barry Peter

Correspondence Chess, 1964

b4b1q/5r2/3p4/4p3/p1p3pn/P1K5/1PPQ4/RN3kBR

#2

9 + 11

3174 The Two-move Chess Problem Tradition and Development 1966
5454 Near Snap 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Rf2
      • 2.Qxf2#
    • 1...Rf3+
      • 2.Be3#
    • 1...Ra7
      • 2.Qf2#
    • 1...Rb7
      • 2.Bh2#
      • 2.Be3#
      • 2.Bd4#
      • 2.Bc5#
      • 2.Bb6#
      • 2.Ba7#
      • 2.Qf2#
    • 1...Rc7
      • 2.Qf2#
    • 1...Rd7
      • 2.Qf2#
    • 1...Re7
      • 2.Qf2#
    • 1...Rg7
      • 2.Qf2#
    • 1...Rh7
      • 2.Qf2#
    • 1...Bg2
      • 2.Qd1#
    • 1...Bf3
      • 2.Qf2#
    • 1...Sg2
      • 2.Bh2#
    • 1...Sf3
      • 2.Qf2#
    • 1...Sf5
      • 2.Qf2#
    • 1...e4+
      • 2.Bd4#
    • 1...d5
      • 2.Bh2#
      • 2.Be3#
      • 2.Bd4#
      • 2.Bc5#
      • 2.Bb6#
      • 2.Ba7#
  • Keys
    • 1.Kb4!
      • threat
        • 2.Sc3#
      • 1...Rb7+
        • 2.Bb6#
      • 1...d5+
        • 2.Bc5#
      • 1...Rf2
        • 2.Qxf2#
      • 1...Bf3
        • 2.Qf2#
      • 1...Sg2
        • 2.Bh2#
      • 1...Sf3
        • 2.Qf2#
      • 1...c3
        • 2.Sxc3#

This anticipates 55076(2004)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 10
  • Sets
    • R(h);N_GUARD::QAR1(G),XR(h)
    • R(h);CHECK,S_CUTB(i)::R(D)+B(C)
    • R(h);N_GUARD::QAR1(G)
    • B(i);SBLOCK::QAR2(G)
    • B(i);S_CUTR(h)::QAR1(G)
    • S(e);S_CUTB(i)::R(D)+B(C)
    • S(e);S_CUTR(h)::QAR1(G)
    • P(f);CHECK,S_CUTB(i)::R(D)+B(C)
  • Actual
    • K(I);S_FLIGHT
    • Threat
      • R(A)+S(B)
    • Vars
      • R(h);CHECK,S_CUTB(i)::R(D)+B(C)
      • P(g);CHECK,S_CUTB(i)::R(D)+B(C)
      • R(h);N_GUARD::QAR1(G),XR(h)
      • B(i);S_CUTR(h)::QAR1(G)
      • S(e);S_CUTB(i)::R(D)+B(C)
      • S(e);S_CUTR(h)::QAR1(G)
      • P(c);::R(A)+S(B),XP(c)
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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).