MESON Chess Problem Database

Problem Display
PID: 269502 (K2b4/Qpp4p/7r/6rq/2N1p3/B2B4/k4NbR/1R6 w - - 0 1)

Andrade, Barry Jack da Costa

British Chess Magazine, 1934

K2b4/Qpp4p/7r/6rq/2N1p3/B2B4/k4NbR/1R6

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bf6
      • 2.Bc5#
    • 1...b5
      • 2.Bd6#
    • 1...b6
      • 2.Bc5#
  • Tries
    • 1.Sd1?
      • threat
        • 2.Sc3#
      • 1...Bf6
        • 2.Bc5#
      • 1...Qxd1!
    • 1.Ra1+?
      • 1...Kxa1
        • 2.Bb2#
      • 1...Kb3!
  • Keys
    • 1.Sxe4!
      • threat
        • 2.Sc3#
      • 1...Bf6
        • 2.Bc5#
      • 1...b5
        • 2.Bd6#
      • 1...b6
        • 2.Bc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • B(j);S_CUTR(f)::QAR(G)+B(D)
    • P(g);S_CUTR(d)::QAR(G)+B(D)
    • P(g);S_CUTR(f)::QAR(G)+B(D)
  • Tries
    • Try
      • S(B);P_PINB(b)
      • Threat
        • S(B)
      • Vars
        • B(j);S_CUTR(f)::QAR(G)+B(D)
      • Refutation
        • Q(e);XS(B)
    • Try
      • R(A);CHECK
      • Vars
        • K(a);N_GUARD,P-FLIGHT,XR(A)::QAR(G)+B(D),DCHECK
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(B);P_PINB(b),XP(c)
    • Threat
      • S(B)
    • Vars
      • B(j);S_CUTR(f)::QAR(G)+B(D)
      • P(g);P_PINS(B),S_CUTR(d)::QAR(G)+B(D)
      • P(g);P_PINS(B),S_CUTR(f)::QAR(G)+B(D)
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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).