MESON Chess Problem Database

Problem Display
PID: 161041 (1K2BB2/p4NN1/Rn3k2/5r1p/2P1pn1P/6Qb/8/5R2 w - - 0 1)

Salamanca, Tomas

Good Companions, 1923

1K2BB2/p4NN1/Rn3k2/5r1p/2P1pn1P/6Qb/8/5R2

#2

10 + 8

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Rg5
      • 2.Qxg5#
    • 1...Se2
      • 2.Qd6#
      • 2.Qg5#
    • 1...Sg2
      • 2.Qd6#
      • 2.Qg5#
    • 1...Sd3
      • 2.Qd6#
      • 2.Qg5#
    • 1...Sd5
      • 2.Qd6#
      • 2.Qg5#
    • 1...Se6
      • 2.Sxh5#
    • 1...Sg6
      • 2.Qd6#
      • 2.Qg5#
  • Tries
    • 1.Rxb6+?
      • 1...Se6
        • 2.Sxh5#
        • 2.Rxe6#
        • 2.Qg5#
      • 1...axb6!
    • 1.Qxf4?
      • threat
        • 2.Qg5#
        • 2.Qd6#
        • 2.Qh6#
      • 1...Kg6
        • 2.Qh6#
      • 1...Bxf1
        • 2.Qd6#
        • 2.Qh6#
        • 2.Qxf5#
      • 1...Rxf4!
  • Keys
    • 1.Se5!
      • threat
        • 2.Sd7#
      • 1...Kxe5
        • 2.Qc3#
      • 1...Rxe5
        • 2.Qg6#
      • 1...Rg5
        • 2.Qxg5#
      • 1...Se6
        • 2.Sxh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(d);N_GUARD,N_SPINS(f),P_SPINS(c)::QAB1(B),XR(d)
    • S(c);N_GUARD,N_SPINS(f),P_SPINR(d),SBLOCK::S(G),XP(e)
  • Tries
    • Try
      • R(E);CHECK,XS(f)
      • Refutation
        • P(h);XR(E)
    • Try
      • Q(B);P_PINR(d),XS(c)
      • Threat
        • DUALS(3)
      • Vars
        • K(g);N_SPINR(d),P-FLIGHT::QAR1(B)
      • Refutation
        • R(d);XQ(B)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • K(g);N_SPINS(f),OGATEB,P_SPINS(c),S_FLIGHT,XS(F)::QAB(B)
      • R(d);N_SPINS(f),P_SPINS(c),SBLOCK,XS(F)::QAR1(B)
      • R(d);N_GUARD,N_SPINS(f),P_SPINS(c)::QAB1(B),XR(d)
      • S(c);N_GUARD,N_SPINS(f),P_SPINR(d),SBLOCK::S(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).