MESON Chess Problem Database

Problem Display
PID: 225461 (1K2Q2B/p2PpP1P/2p1k1p1/1nPrprb1/4P3/3N4/3R4/q2B4 w - - 0 1)

Shinkarenko, Gennady Viktorovich

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Praca, 2000

1K2Q2B/p2PpP1P/2p1k1p1/1nPrprb1/4P3/3N4/3R4/q2B4

#2

11 + 11

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc5
      • 2.Sxc5#
    • 1...Bf6
      • 2.f8S#
    • 1...Sd6
      • 2.d8S#
  • Tries
    • 1.Bg4?
      • threat
        • 2.f8S#
      • 1...Rxc5
        • 2.Sxc5#
      • 1...Bh6!
    • 1.Qc8?
      • threat
        • 2.d8S#
      • 1...Kxf7
        • 2.Qg8#
      • 1...Rxd7
        • 2.Bb3#
      • 1...Rxc5!
    • 1.exd5+?
      • 1...cxd5
        • 2.d8S#
      • 1...Kxd5!
    • 1.exf5+?
      • 1...gxf5
        • 2.f8S#
      • 1...Kxf5!
  • Keys
    • 1.Qg8!
      • threat
        • 2.f8S#
      • 1...Kxd7
        • 2.Qc8#
      • 1...Rxc5
        • 2.Sxc5#
      • 1...Rxf7
        • 2.Bg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(c);XP(E)::S(C),XR(c)
    • B(f);S_CUTR(e)::P=S
    • S(b);S_CUTR(c)::P=S
  • Tries
    • Try
      • B(A);P_PINR(e)
      • Threat
        • P=S
      • Vars
        • R(c);XP(E)::S(C),XR(c)
      • Refutation
        • B(f);
    • Try
      • Q(J);N_PINP(k)
      • Threat
        • P=S
      • Vars
        • K(h);OGATEB,S_FLIGHT,XP(G)::QAB1(J)
        • R(c);OGATEB,P_SPINR(c),XP(F)::B(A)
      • Refutation
        • R(c);XP(E)
    • Try
      • P(D);CHECK,XR(c)
      • Vars
        • P(g);N_GUARD,SBLOCK,XP(D)::P=S
      • Refutation
        • K(h);N_SPINP(k),S_FLIGHT,XP(D)
    • Try
      • P(D);CHECK,XR(e)
      • Vars
        • P(i);N_GUARD,SBLOCK,XP(D)::P=S
      • Refutation
        • K(h);N_SPINP(k),S_FLIGHT,XP(D)
  • Actual
    • Q(J);N_PINP(k)
    • Threat
      • P=S
    • Vars
      • K(h);OGATEB,S_FLIGHT,XP(F)::QAB1(J)
      • R(c);XP(E)::S(C),XR(c)
      • R(e);OGATEB,P_SPINR(e),XP(G)::B(A)
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).