MESON Chess Problem Database

Problem Display
PID: 108603 (8/n1Np1K2/2p5/r1p2R2/1pk1P3/1p3R2/1P2P1Q1/2n3B1 w - - 0 1)

Katasuk, Vladislav Viktorovich

Slovensky Dennik, 1992

8/n1Np1K2/2p5/r1p2R2/1pk1P3/1p3R2/1P2P1Q1/2n3B1

#2

9 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Rxc5#
    • 1...Ra2
      • 2.Rxc5#
    • 1...Ra3
      • 2.Rxc5#
    • 1...Ra4
      • 2.Rxc5#
    • 1...Ra6
      • 2.Rxc5#
    • 1...Sxe2
      • 2.Qxe2#
    • 1...Sd3
      • 2.exd3#
    • 1...Sb5
      • 2.Rxc5#
  • Tries
    • 1.R3f4?
      • threat
        • 2.e5#
      • 1...Sxe2
        • 2.Qxe2#
      • 1...Sb5
        • 2.Rxc5#
      • 1...d5
        • 2.exd5#
      • 1...Sd3!
    • 1.R5f4?
      • threat
        • 2.e5#
      • 1...Sxe2
        • 2.Qxe2#
      • 1...Sd3
        • 2.exd3#
      • 1...d5
        • 2.exd5#
      • 1...Sb5!
    • 1.Qg4?
      • threat
        • 2.e5#
      • 1...Sd3
        • 2.exd3#
      • 1...Sb5
        • 2.Rxc5#
      • 1...d5
        • 2.exd5#
      • 1...Sxe2!
  • Keys
    • 1.Qf1!
      • threat
        • 2.Qxc1#
      • 1...Sxe2
        • 2.Qxe2#
      • 1...Ra1
        • 2.Rxc5#
      • 1...Sa2
        • 2.e3#
      • 1...Sd3
        • 2.exd3#
      • 1...Sb5
        • 2.Rxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • R(e);N_GUARD::R1(G),XP(f)
    • S(a);OGATE,XP(C)::QAB(D),XS(a)
    • S(a);OGATE::P(C),XS(a)
    • S(h);S_CUTR(e)::R1(G),XP(f)
  • Tries
    • Try
      • R(E);
      • Threat
        • R(E)+P(F)
      • Vars
        • S(a);OGATE,XP(C)::QAB(D),XS(a)
        • S(h);S_CUTR(e)::R1(G),XP(f)
        • P(i);OGATE::R(E)+P(F),XP(i)
      • Refutation
        • S(a);
    • Try
      • R(G);
      • Threat
        • R(G)+P(F)
      • Vars
        • S(a);OGATE,XP(C)::QAB(D),XS(a)
        • S(a);OGATE::P(C),XS(a)
        • P(i);OGATE::R(G)+P(F),XP(i)
      • Refutation
        • S(h);
    • Try
      • Q(D);
      • Threat
        • QAR(D)+P(F)
      • Vars
        • S(a);OGATE::P(C),XS(a)
        • S(h);S_CUTR(e)::R1(G),XP(f)
        • P(i);OGATE::QAR(D)+P(F),XP(i)
      • Refutation
        • S(a);XP(C)
  • Actual
    • Q(D);
    • Threat
      • QAR(D),XS(a)
    • Vars
      • S(a);OGATE,P_SPINS(a),XP(C)::QAB(D),XS(a)
      • R(e);N_GUARD::R1(G),XP(f)
      • S(a);N_GUARD::QAB(D)+P(C)
      • S(a);OGATE::P(C),XS(a)
      • S(h);S_CUTR(e)::R1(G),XP(f)
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).