MESON Chess Problem Database

Problem Display
PID: 259094 (R7/1Np3bN/1p2Kp2/p7/Rq2kp2/2P1p3/4P3/8 w - - 0 1)

Gheran, Nicoale

Iuncu, Filaret

Buletin Problemistic, 1988

R7/1Np3bN/1p2Kp2/p7/Rq2kp2/2P1p3/4P3/8

#2

7 + 9

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qc4+
      • 2.Rxc4#
    • 1...Qd4
      • 2.Rxd4#
    • 1...Bh6
      • 2.Sxf6#
    • 1...Bf8
      • 2.Sxf6#
    • 1...b5
      • 2.Sc5#
    • 1...f5
      • 2.Sg5#
    • 1...c5
      • 2.Sd6#
    • 1...c6
      • 2.Sd6#
  • Keys
    • 1.R8xa5!
      • threat
        • 2.Rxb4#
      • 1...Qc4+
        • 2.Rxc4#
      • 1...Qxa4
        • 2.Rxa4#
      • 1...bxa5
        • 2.Sc5#
      • 1...Qd4
        • 2.Rxd4#
      • 1...Bf8
        • 2.Sxf6#
      • 1...f5
        • 2.Sg5#
      • 1...c5
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • Q(b);CHECK,OGATE::R(C),XQ(b)
    • Q(b);OGATE::R1(C),XQ(b)
    • B(i);N_GUARD::S(F),XP(g)
    • P(f);N_GUARD::S(E)
    • P(g);N_GUARD::S(F)
    • P(h);N_GUARD::S(E)
  • Actual
    • R(G);XP(e)
    • Threat
      • R(C),XQ(b)
    • Vars
      • Q(b);CHECK,OGATE::R(C),XQ(b)
      • Q(b);N_SPINQ(b),OGATE,XR(C)::R(G),XQ(b)
      • P(f);N_GUARD,XR(G)::S(E)
      • Q(b);OGATE::R1(C),XQ(b)
      • B(i);N_GUARD::S(F),XP(g)
      • P(g);N_GUARD::S(F)
      • P(h);N_GUARD::S(E)
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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).