MESON Chess Problem Database

Problem Display
PID: 63495 (3R2r1/Q4R2/1pp5/2P1n3/2b1N2B/K3N1rB/4p3/4k3 w - - 0 1)

Garaza, Luis Alberto

Chess, 1945

3R2r1/Q4R2/1pp5/2P1n3/2b1N2B/K3N1rB/4p3/4k3

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd8
      • 2.Bxg3#
    • 1...Re8
      • 2.Bxg3#
    • 1...Rf8
      • 2.Bxg3#
    • 1...Rh8
      • 2.Bxg3#
    • 1...Bb3
      • 2.Sg2#
    • 1...Sf3
      • 2.Sc2#
    • 1...Sg6
      • 2.Bxg3#
    • 1...bxc5
      • 2.Qa5#
  • Tries
    • 1.Qxb6?
      • threat
        • 2.Qa5#
        • 2.Qb1#
        • 2.Qb4#
      • 1...Rxd8
        • 2.Bxg3#
      • 1...Bd3
        • 2.Qa5#
        • 2.Qb4#
      • 1...Ba2
        • 2.Qa5#
        • 2.Qb4#
      • 1...Bb3
        • 2.Sg2#
        • 2.Qa5#
        • 2.Qb4#
      • 1...Bb5
        • 2.Qa5#
      • 1...Sf3
        • 2.Sc2#
        • 2.Qb1#
      • 1...Sd3!
  • Keys
    • 1.Qa4!
      • threat
        • 2.Qb4#
      • 1...Rxd8
        • 2.Bxg3#
      • 1...bxc5
        • 2.Qa5#
      • 1...Sd3
        • 2.Sg2#
      • 1...Sf3
        • 2.Sc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • R(h);N_GUARD,XR(I)::B(E),XR(c)
    • R(h);N_GUARD::B(E),XR(c)
    • B(d);N_PINS(B)::S(B)
    • S(e);N_PINS(B)::S(B)
    • S(e);S_CUTR(h)::B(E),XR(c)
    • P(f);N_GUARD,XP(F)::QAB(G)
  • Tries
    • Try
      • Q(G);XP(f)
      • Threat
        • DUALS(3)
      • Vars
        • R(h);N_GUARD,XR(I)::B(E),XR(c)
        • B(d);::QAB(G)
      • Refutation
        • S(e);N_PINS(B)
  • Actual
    • Q(G);
    • Threat
      • QAB(G)
    • Vars
      • R(h);N_GUARD,XR(I)::B(E),XR(c)
      • P(f);N_GUARD,XP(F)::QAB(G)
      • S(e);N_PINS(B)::S(B)
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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).