MESON Chess Problem Database

Problem Display
PID: 258269 (b1r5/5p2/1R1PkNp1/3n2Pp/2BnKB2/1N4Q1/4P3/3r2b1 w - - 0 1)

Maleika, Gerhard

Paslack, Rainer

1st Prize, Schach, 2018-2019

b1r5/5p2/1R1PkNp1/3n2Pp/2BnKB2/1N4Q1/4P3/3r2b1

#2

10 + 10

45 Schach 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.Sxc5#
    • 1...Rc6
      • 2.Bxd5#
    • 1...Rb8
      • 2.Sc5#
    • 1...Rd8
      • 2.Sc5#
    • 1...Re8
      • 2.Sc5#
    • 1...Rf8
      • 2.Sc5#
    • 1...Rg8
      • 2.Sc5#
    • 1...Rh8
      • 2.Sc5#
    • 1...Bc6
      • 2.Sc5#
    • 1...Sc2
      • 2.Qh3#
    • 1...Sxe2
      • 2.Qh3#
    • 1...Sxb3
      • 2.Qh3#
    • 1...Sf3
      • 2.Qh3#
    • 1...Sb5
      • 2.Qh3#
    • 1...Sc6
      • 2.Qh3#
  • Tries
    • 1.Sxd4+?
      • 1...Bxd4
        • 2.Qh3#
      • 1...Rxd4+!
    • 1.Be3?
      • threat
        • 2.Qe5#
      • 1...Sf3
        • 2.Qh3#
      • 1...Sc6
        • 2.Sc5#
      • 1...Bh2!
    • 1.Rc6?
      • threat
        • 2.Sc5#
        • 2.Bxd5#
      • 1...Rxc6
        • 2.Bxd5#
      • 1...Bxc6
        • 2.Sc5#
      • 1...Sxe2
        • 2.Qh3#
      • 1...Sxb3
        • 2.Qh3#
      • 1...Sxc6
        • 2.Qh3#
      • 1...Sc2
        • 2.Qh3#
      • 1...Sf3
        • 2.Qh3#
      • 1...Sb5
        • 2.Qh3#
      • 1...Sf5!
  • Keys
    • 1.Bd2!
      • threat
        • 2.Qe5#
      • 1...Bh2
        • 2.Sxd4#
      • 1...Sf3
        • 2.Qh3#
      • 1...Sc6
        • 2.Bxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 13
  • Sets
    • R(j);N_GUARD::S(B),XR(j)
    • R(j);S_CUTB(i)::B(D),XS(d)
    • R(j);N_GUARD::S(B)
    • B(i);S_CUTR(j)::S(B)
    • S(c);N_GUARD::QAB(C)
    • S(c);N_GUARD,XP(A)::QAB(C)
    • S(c);N_GUARD,XS(B)::QAB(C)
  • Tries
    • Try
      • S(B);CHECK,XS(c)
      • Vars
        • B(b);XS(B)::QAB(C)
      • Refutation
        • R(a);CHECK,XS(B)
    • Try
      • B(F);
      • Threat
        • QAR1(C)
      • Vars
        • S(c);N_GUARD::QAB(C)
        • S(c);S_CUTR(j)::S(B)
      • Refutation
        • B(b);
    • Try
      • R(H);
      • Threat
        • DUALS(2)
      • Vars
        • R(j);XR(H)::B(D),XS(d)
        • B(i);XR(H)::S(B)
        • S(c);N_GUARD,XP(A)::QAB(C)
        • S(c);N_GUARD,XS(B)::QAB(C)
        • S(c);N_GUARD,XR(H)::QAB(C)
        • S(c);N_GUARD::QAB(C)
      • Refutation
        • S(c);
  • Actual
    • B(F);
    • Threat
      • QAR1(C)
    • Vars
      • B(b);N_GUARD::S(B),XS(c)
      • S(c);N_GUARD::QAB(C)
      • S(c);S_CUTB(i)::B(D),XS(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).