Problem Display
PID: 87512 (8/3B2bq/r1p3b1/2PPk2p/pR2Np1B/8/1N3K2/3R4 w - - 0 1)

Eszlinger, Josef

Muller, Dieter

Problemista, 1997

8/3B2bq/r1p3b1/2PPk2p/pR2Np1B/8/1N3K2/3R4

#2

9 + 9


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Sets
    • 1...Bxe4
      • 2.Sc4#
    • 1...Bf6
      • 2.Bxf6#
    • 1...Bh6
      • 2.Bf6#
    • 1...Bf8
      • 2.Bf6#
    • 1...f3
      • 2.Bg3#
    • 1...cxd5
      • 2.Sd3#
  • Tries
    • 1.Kf3?
      • threat
        • 2.Sc4#
      • 1...cxd5
        • 2.Sd3#
      • 1...Bxe4+!
    • 1.Bd8?
      • threat
        • 2.Bc7#
      • 1...Bxe4
        • 2.Sc4#
      • 1...cxd5
        • 2.Sd3#
      • 1...Bf8
        • 2.Bf6#
      • 1...Ra7!
    • 1.Be6?
      • threat
        • 2.Sd3#
      • 1...Bxe4
        • 2.Sc4#
      • 1...cxd5!
    • 1.Rbd4?
      • threat
        • 2.Sc4#
      • 1...f3
        • 2.Bg3#
      • 1...cxd5!
  • Keys
    • 1.Be7!
      • threat
        • 2.Bd6#
      • 1...Bxe4
        • 2.Sc4#
      • 1...cxd5
        • 2.Sd3#
      • 1...Bf8
        • 2.Bf6#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • B(g);SBLOCK,XS(E)::S(B)
    • B(h);N_GUARD::B(F),XB(h)
    • B(h);N_GUARD::B(F)
    • P(b);OGATEB::B(F)
    • P(f);SBLOCK,XP(H)::S(B)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Threat
        • S(B)
      • Vars
        • P(f);SBLOCK,XP(H)::S(B)
      • Refutation
        • B(g);CHECK,XS(E)
    • Try
      • B(F);
      • Threat
        • B(F)
      • Vars
        • B(g);SBLOCK,XS(E)::S(B)
        • P(f);SBLOCK,XP(H)::S(B)
        • B(h);N_GUARD::B(F)
      • Refutation
        • R(e);
    • Try
      • B(I);
      • Threat
        • S(B)
      • Vars
        • B(g);SBLOCK,XS(E)::S(B)
      • Refutation
        • P(f);XP(H)
    • Try
      • R(D);
      • Threat
        • S(B)
      • Vars
        • P(b);OGATEB::B(F)
      • Refutation
        • P(f);XP(H)
  • Actual
    • B(F);
    • Threat
      • B(F)
    • Vars
      • B(g);SBLOCK,XS(E)::S(B)
      • P(f);SBLOCK,XP(H)::S(B)
      • B(h);N_GUARD::B(F)


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).