MESON Chess Problem Database

Problem Display
PID: 269006 (r1nb1R2/5Q2/1p1k1qN1/1P1Ppn2/pKp2r2/B1P5/8/8 w - - 0 1)

Chicco, Adriano

HM., Die Schwalbe, 1937/IV

r1nb1R2/5Q2/1p1k1qN1/1P1Ppn2/pKp2r2/B1P5/8/8

#2

8 + 11

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Qg7
      • 2.Rxd8#
    • 1...Qxg6
      • 2.Rxd8#
    • 1...Rf1
      • 2.Kxc4#
    • 1...Rf2
      • 2.Kxc4#
    • 1...Rf3
      • 2.Kxc4#
    • 1...Rb8
      • 2.Kxa4#
    • 1...Sd4
      • 2.Kxc4#
    • 1...Sa7
      • 2.Kxa4#
    • 1...e4
      • 2.Kxc4#
  • Keys
    • 1.Qb7!
      • threat
        • 2.Qc6#
      • 1...Qxg6
        • 2.Rxd8#
      • 1...Sd4
        • 2.Kxc4#
      • 1...Sfe7
        • 2.Rxd8#
      • 1...Sa7
        • 2.Kxa4#
      • 1...Sce7
        • 2.Rxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • Q(h);N_GUARD::R(H),XB(k)
    • Q(h);N_GUARD,XS(F)::R(H),XB(k)
    • R(c);::B(A)+K(C),XP(b)
    • R(i);::B(A)+K(C),XP(a)
    • S(e);::B(A)+K(C),XP(b)
    • S(j);::B(A)+K(C),XP(a)
    • P(d);::B(A)+K(C),XP(b)
  • Actual
    • Q(G);
    • Threat
      • QAR1(G)
    • Vars
      • Q(h);N_GUARD,XS(F)::R(H),XB(k)
      • S(e);::B(A)+K(C),XP(b)
      • S(e);S_CUTQ(h)::R(H),XB(k)
      • S(j);::B(A)+K(C),XP(a)
      • S(j);S_CUTB(k)::R(H),XQ(h)
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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).