MESON Chess Problem Database

Problem Display
PID: 269399 (b2b1n1r/4P2r/4R2p/3k4/1R3pBp/1n1N4/2P5/4K3 w - - 0 1)

Moen, Kabe

The Problemist Supplement, 2022

b2b1n1r/4P2r/4R2p/3k4/1R3pBp/1n1N4/2P5/4K3

#2

7 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Sd4
      • 2.c4#
    • 1...Sc5
      • 2.Sxf4#
  • Tries
    • 1.e8S?
      • threat
        • 2.Rd6#
      • 1...Sxe6
        • 2.Bf3#
      • 1...Re7
        • 2.Sf6#
      • 1...Bc7
        • 2.Sf6#
      • 1...Be7
        • 2.Sc7#
      • 1...Sd4
        • 2.c4#
      • 1...Rd7!
  • Keys
    • 1.e8Q!
      • threat
        • 2.Bf3#
      • 1...Sxe6
        • 2.Qxe6#
      • 1...Re7
        • 2.Qh5#
      • 1...Be7
        • 2.Qxa8#
      • 1...Sd2
        • 2.Qb5#
      • 1...Sd4
        • 2.c4#
      • 1...Sc5
        • 2.Sxf4#
      • 1...f3
        • 2.Bxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • S(a);SBLOCK::P(B)
    • S(a);SBLOCK::S(C),XP(b)
  • Tries
    • Try
      • P(G);
      • Threat
        • R1(F)
      • Vars
        • S(i);SBLOCK,XR(F)::B(E)
        • R(f);P_PINR(F),S_CUTB(h)::S(G)
        • B(h);N_GUARD::S(G)
        • B(h);N_GUARD,S_CUTR(f)::S(G)
        • S(a);SBLOCK::P(B)
      • Refutation
        • R(f);
  • Actual
    • P(G);
    • Threat
      • B(E)
    • Vars
      • S(i);OGATE,XR(F)::QAB1(G),XS(i)
      • R(f);P_PINR(F),S_CUTB(h)::QAR(G)
      • B(h);OGATE::QAB(G),XB(g)
      • S(a);N_GUARD::QAR2(G)
      • S(a);SBLOCK::P(B)
      • S(a);SBLOCK::S(C),XP(b)
      • P(b);::B(E),XP(b)
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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).