MESON Chess Problem Database

Problem Display
PID: 176559 (nR1K4/3Np3/2B1P1p1/3Np3/1BkrR2b/1p4q1/4P3/8 w - - 0 1)

Benedek, Attila

Schach-Echo, 1973

nR1K4/3Np3/2B1P1p1/3Np3/1BkrR2b/1p4q1/4P3/8

#2

9 + 9

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qe1
      • 2.Se3#
      • 2.Sxe5#
    • 1...Qf2
      • 2.Sxe5#
    • 1...Qh2
      • 2.Se3#
    • 1...Qg1
      • 2.Sxe5#
    • 1...Qg2
      • 2.Se3#
      • 2.Sxe5#
    • 1...Qc3
      • 2.Sxe5#
    • 1...Qd3
      • 2.Sxe5#
    • 1...Qe3
      • 2.Sxe3#
      • 2.Sxe5#
    • 1...Qf3
      • 2.Sxe5#
    • 1...Qh3
      • 2.Sxe5#
    • 1...Qg4
      • 2.Se3#
      • 2.Sxe5#
    • 1...Sb6
      • 2.S7xb6#
    • 1...Sc7
      • 2.S7b6#
  • Tries
    • 1.Bd2?
      • threat
        • 2.Rb4#
      • 1...Sb6
        • 2.S5xb6#
      • 1...Qc3!
    • 1.Ba5?
      • threat
        • 2.Rb4#
      • 1...Qe1
        • 2.Se3#
      • 1...Sb6
        • 2.S5xb6#
      • 1...Qc3!
    • 1.Bd6?
      • threat
        • 2.Rb4#
      • 1...Qc3
        • 2.Sxe5#
      • 1...Qe1
        • 2.Sxe5#
      • 1...Sb6
        • 2.S7xb6#
      • 1...exd6+!
    • 1.Bxe7?
      • threat
        • 2.Rb4#
      • 1...Qc3
        • 2.Sxe5#
      • 1...Qe1
        • 2.Sxe5#
      • 1...Sb6
        • 2.S7xb6#
      • 1...Bxe7+!
  • Keys
    • 1.Ba3!
      • threat
        • 2.Rb4#
      • 1...Qc3
        • 2.Sxe5#
      • 1...Qe1
        • 2.Sxe5#
      • 1...Sb6
        • 2.S7xb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • Q(b);N_GUARD::S(G),XP(f)
    • Q(b);N_GUARD::S(D)
    • S(i);N_GUARD::S(G),XS(i)
    • S(i);N_GUARD::S(G)
  • Tries
    • Try
      • B(B);
      • Threat
        • R1(H)
      • Vars
        • S(i);N_GUARD::S(D),XS(i)
      • Refutation
        • Q(b);
    • Try
      • B(B);
      • Threat
        • R1(H)
      • Vars
        • Q(b);N_GUARD::S(D)
        • S(i);N_GUARD::S(D),XS(i)
      • Refutation
        • Q(b);
    • Try
      • B(B);
      • Threat
        • R1(H)
      • Vars
        • Q(b);N_GUARD::S(G),XP(f)
        • S(i);N_GUARD::S(G),XS(i)
      • Refutation
        • P(h);CHECK,XB(B)
    • Try
      • B(B);P_SPINB(B),XP(h)
      • Threat
        • R1(H)
      • Vars
        • Q(b);N_GUARD::S(G),XP(f)
        • S(i);N_GUARD::S(G),XS(i)
      • Refutation
        • B(e);CHECK,XB(B)
  • Actual
    • B(B);
    • Threat
      • R1(H)
    • Vars
      • Q(b);N_GUARD::S(G),XP(f)
      • S(i);N_GUARD::S(G),XS(i)
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).