MESON Chess Problem Database

Problem Display
PID: 145175 (8/2p1K2p/4pNPN/RP1Pk3/1p1p1p1p/1P1P3R/2P1P1P1/6B1 w - - 0 1)

Dobrila, Arsen

The Problemist, 1989

8/2p1K2p/4pNPN/RP1Pk3/1p1p1p1p/1P1P3R/2P1P1P1/6B1

#2

14 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...f3
      • 2.Bh2#
    • 1...exd5
      • 2.Sfg4#
      • 2.Sd7#
  • Tries
    • 1.Re3+?
      • 1...fxe3
        • 2.Bh2#
      • 1...dxe3!
    • 1.Rxh4?
      • threat
        • 2.Rh5#
      • 1...f3
        • 2.Bh2#
        • 2.Bxd4#
        • 2.Re4#
      • 1...hxg6!
    • 1.Ra6?
      • threat
        • 2.Rxe6#
      • 1...exd5
        • 2.Sfg4#
        • 2.Sd7#
        • 2.Re6#
      • 1...f3
        • 2.Bh2#
      • 1...c6!
    • 1.c4?
      • threat
        • 2.Sfg4#
        • 2.Sd7#
      • 1...dxc4 ep
        • 2.d4#
      • 1...f3
        • 2.Bh2#
      • 1...bxc4 ep!
    • 1.e4?
      • threat
        • 2.Sfg4#
        • 2.Sd7#
        • 2.Shg4#
        • 2.Sf7#
      • 1...fxe4 ep
        • 2.Bh2#
      • 1...f3
        • 2.Bh2#
      • 1...dxe4 ep!
    • 1.g4?
      • threat
        • 2.Sf7#
      • 1...hxg4 ep
        • 2.Rh5#
      • 1...f3
        • 2.Bh2#
      • 1...fxg4 ep!
    • 1.dxe6?
      • 1...f3
        • 2.Bh2#
      • 1...c5
        • 2.bxc5 ep#
      • 1...c6
        • 2.bxc6#
      • 1...hxg6!
  • Keys
    • 1.b6!
      • threat
        • 2.Sfg4#
        • 2.Sd7#
      • 1...f3
        • 2.Bh2#
      • 1...c5
        • 2.dxc5 ep#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(c);OGATEB::B(A)
  • Tries
    • Try
      • R(G);CHECK
      • Vars
        • P(c);S_CUTP(b),XR(G)::B(A)
      • Refutation
        • P(b);XR(G)
    • Try
      • R(G);XP(d)
      • Threat
        • R(G)
      • Refutation
        • P(h);XP(L)
    • Try
      • R(H);
      • Threat
        • R1(H),XP(f)
      • Vars
        • P(c);OGATEB::B(A)
      • Refutation
        • P(g);
    • Try
      • P(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);EP,OGATE,XP(B)::P(F)
        • P(c);OGATEB::B(A)
      • Refutation
        • P(a);EP,XP(B)
    • Try
      • P(C);
      • Threat
        • DUALS(4)
      • Vars
        • P(c);EP,OGATEB,XP(C)::B(A)
        • P(c);OGATEB::B(A)
      • Refutation
        • P(b);EP,XP(C)
    • Try
      • P(D);
      • Threat
        • S(M)
      • Vars
        • P(d);EP,OGATE,XP(D)::R(G)
        • P(c);OGATEB::B(A)
      • Refutation
        • P(c);EP,XP(D)
    • Try
      • P(J);XP(f)
      • Vars
        • P(c);OGATEB::B(A)
        • P(g);OGATE::R(H)+P(I),XP(g),EP
        • P(g);OGATE::R(H)+P(I),XP(g)
      • Refutation
        • P(h);XP(L)
  • Actual
    • P(I);
    • Threat
      • DUALS(2)
    • Vars
      • P(c);OGATEB::B(A)
      • P(g);OGATE::R(H)+P(J),XP(g),EP
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).