MESON Chess Problem Database

Problem Display
PID: 263246 (5n1Q/5R1n/6p1/2p1Np2/2B1k3/2P5/Rb3K2/1bB5 w - - 0 1)

Szymanski, Kazimierz

Szachy, 1984

5n1Q/5R1n/6p1/2p1Np2/2B1k3/2P5/Rb3K2/1bB5

#2

8 + 8

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Ba1
      • 2.Re2#
    • 1...Ba3
      • 2.Re2#
    • 1...f4
      • 2.Rxf4#
  • Tries
    • 1.Sd3?
      • threat
        • 2.Sxc5#
        • 2.Qe5#
      • 1...Bxc1
        • 2.Qe5#
      • 1...Bxc3
        • 2.Sxc5#
        • 2.Re2#
      • 1...Ba3
        • 2.Re2#
        • 2.Qe5#
      • 1...Sf6
        • 2.Qh1#
      • 1...Se6
        • 2.Qe5#
        • 2.Qa8#
      • 1...Sd7
        • 2.Qa8#
      • 1...Bxd3!
    • 1.Sf3?
      • threat
        • 2.Qe5#
      • 1...Bxc3
        • 2.Re2#
      • 1...Sd7
        • 2.Qa8#
      • 1...Sf6!
    • 1.Sc6?
      • threat
        • 2.Qe5#
      • 1...Bxc3
        • 2.Re2#
      • 1...Sf6
        • 2.Qh1#
      • 1...Sd7!
    • 1.Sxg6?
      • threat
        • 2.Qe5#
      • 1...Bxc3
        • 2.Re2#
      • 1...Sf6
        • 2.Qh1#
      • 1...Sd7
        • 2.Qa8#
      • 1...Sxg6!
    • 1.Sd7?
      • threat
        • 2.Sxc5#
        • 2.Qe5#
      • 1...Bxc1
        • 2.Qe5#
      • 1...Bxc3
        • 2.Sxc5#
        • 2.Re2#
      • 1...Ba3
        • 2.Re2#
        • 2.Qe5#
      • 1...Sf6
        • 2.Qh1#
      • 1...Se6
        • 2.Qe5#
        • 2.Qa8#
      • 1...Sxd7!
  • Keys
    • 1.Sg4!
      • threat
        • 2.Qe5#
      • 1...Bxc3
        • 2.Re2#
      • 1...fxg4
        • 2.Rf4#
      • 1...Sf6
        • 2.Qh1#
      • 1...Sd7
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • B(b);OGATE::R(B)
    • P(e);OGATE::R1(G),XP(e)
  • Tries
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • B(b);XB(A)::QAR1(H)
        • S(g);OGATE::QAB(H)
        • S(h);OGATE::QAB(H)
      • Refutation
        • B(a);XS(F)
    • Try
      • S(F);
      • Threat
        • QAR1(H)
      • Vars
        • B(b);OGATE,XP(D)::R(B)
        • S(h);OGATE::QAB(H)
      • Refutation
        • S(g);
    • Try
      • S(F);
      • Threat
        • QAR1(H)
      • Vars
        • B(b);OGATE,XP(D)::R(B)
        • S(g);OGATE::QAB(H)
      • Refutation
        • S(h);
    • Try
      • S(F);XP(f)
      • Threat
        • QAR1(H)
      • Vars
        • B(b);OGATE,XP(D)::R(B)
        • S(g);OGATE::QAB(H)
        • S(h);OGATE::QAB(H)
      • Refutation
        • S(h);XS(F)
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • B(b);XB(A)::QAR1(H)
        • S(g);OGATE::QAB(H)
      • Refutation
        • S(h);XS(F)
  • Actual
    • S(F);
    • Threat
      • QAR1(H)
    • Vars
      • B(b);OGATE,XP(D)::R(B)
      • P(e);OGATE,XS(F)::R1(G)
      • S(g);OGATE::QAB(H)
      • S(h);OGATE::QAB(H)
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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).