MESON Chess Problem Database

Problem Display
PID: 201705 (5B2/5n2/1r6/2p1p3/2p4R/b3kN2/1r4p1/1b1QN1K1 w - - 0 1)

Elekes, Dezso

Magyar Sakkvilag, 1922

5B2/5n2/1r6/2p1p3/2p4R/b3kN2/1r4p1/1b1QN1K1

#2

6 + 10

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rd2
      • 2.Qxd2#
    • 1...R2b3
      • 2.Sxg2#
      • 2.Qd2#
    • 1...R2b4
      • 2.Sxg2#
      • 2.Bxc5#
      • 2.Qd2#
    • 1...R2b5
      • 2.Sxg2#
      • 2.Qd2#
    • 1...R6b4
      • 2.Bxc5#
    • 1...Bc2
      • 2.Sxg2#
      • 2.Qd2#
    • 1...Sd6
      • 2.Bh6#
  • Tries
    • 1.Qc1+?
      • 1...Rd2
        • 2.Qxd2#
      • 1...Ke2!
  • Keys
    • 1.Sd2!
      • threat
        • 2.Sxc4#
      • 1...Rxd2
        • 2.Qf3#
      • 1...Rc2
        • 2.Re4#
      • 1...R2b4
        • 2.Bxc5#
      • 1...R6b4
        • 2.Bxc5#
      • 1...Ba2
        • 2.Re4#
      • 1...Bd3
        • 2.Sxg2#
      • 1...Sd6
        • 2.Bh6#
      • 1...c3
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • R(b);N_GUARD::QAB1(A),XR(b)
    • R(i);S_CUTB(d)::B(F),XP(g)
    • S(j);N_GUARD,S_CUTR(i)::B(F)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • R(b);N_GUARD,P_SPINR(b)::QAB1(A),XR(b)
      • Refutation
        • K(e);P-FLIGHT
  • Actual
    • S(D);
    • Threat
      • S(D),XP(f)
    • Vars
      • R(b);SBLOCK,XS(D)::QAR1(A)
      • R(b);S_CUTB(a)::R1(E)
      • R(b);S_CUTB(d)::B(F),XP(g)
      • R(i);S_CUTB(d)::B(F),XP(g)
      • B(a);N_GUARD::R1(E)
      • B(a);SBLOCK::S(B),XP(c)
      • S(j);N_GUARD,S_CUTR(i)::B(F)
      • P(f);::S(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).