MESON Chess Problem Database

Problem Display
PID: 134096 (b3R1B1/8/3Qn3/1p1p4/2k1n3/1p5R/1P2P3/1K3NB1 w - - 0 1)

Vinagre, Jose C

The Problemist Supplement, 2009

b3R1B1/8/3Qn3/1p1p4/2k1n3/1p5R/1P2P3/1K3NB1

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Sd2+
      • 2.Sxd2#
    • 1...Sc3+
      • 2.Rxc3#
    • 1...Sg3
      • 2.Sd2#
    • 1...S4g5
      • 2.Sd2#
      • 2.Rc3#
    • 1...Sf6
      • 2.Sd2#
      • 2.Rc3#
    • 1...Sd4
      • 2.Se3#
    • 1...Sf4
      • 2.Rxe4#
    • 1...Sc7
      • 2.Rxe4#
    • 1...Sg7
      • 2.Rxe4#
    • 1...Sd8
      • 2.Rxe4#
    • 1...Sf8
      • 2.Rxe4#
    • 1...b4
      • 2.Qa6#
    • 1...d4
      • 2.Qxd4#
  • Keys
    • 1.Rh4!
      • threat
        • 2.Sd2#
      • 1...Sc5
        • 2.Qxc5#
      • 1...b4
        • 2.Qa6#
      • 1...Sd4
        • 2.Se3#
      • 1...Sf4
        • 2.Rxe4#
      • 1...d4
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • S(c);CHECK,N_GUARD::S(B),XS(c)
    • S(c);CHECK,N_GUARD::R1(F),XS(c)
    • S(c);N_GUARD::S(B)
    • S(f);P_SPINP(e),SBLOCK::S(B)
    • S(f);OGATE,P_SPINP(e)::R(H),XS(c)
    • P(d);OGATEB,SBLOCK::QAB(G)
    • P(e);OGATE,P_SPINS(f)::QAR1(G),XP(e)
  • Actual
    • R(F);P_PINS(c)
    • Threat
      • S(B)
    • Vars
      • S(f);N_GUARD,P_SPINP(e)::QAR1(G),XS(f)
      • P(d);OGATEB,SBLOCK::QAB(G)
      • S(f);N_SPINS(c),P_SPINP(e),SBLOCK::S(B)
      • S(f);N_SPINS(c),OGATE,P_SPINP(e)::R(H),XS(c)
      • P(e);N_SPINS(c),OGATE,P_SPINS(f)::QAR1(G),XP(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).