MESON Chess Problem Database

Problem Display
PID: 170043 (2Kb4/7n/6p1/2Q3n1/1N3kpB/1R1P1p2/1p2r2N/1B2R3 w - - 0 1)

Rizzetti, Dante Hugo

Enroque!!, 1947

2Kb4/7n/6p1/2Q3n1/1N3kpB/1R1P1p2/1p2r2N/1B2R3

#2

9 + 9

16325 Seleccion de Problemas de Dante Hugo Rizzetti (Kapros) 2013
6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rd2
      • 2.Qe5#
    • 1...Rf2
      • 2.Qe5#
    • 1...Rg2
      • 2.Qe5#
    • 1...Rxh2
      • 2.Qe5#
    • 1...Re5
      • 2.Qxe5#
    • 1...Sf6
      • 2.Qxg5#
  • Tries
    • 1.Qd6+?
      • 1...Ke3
        • 2.Sf1#
      • 1...Re5
        • 2.Qxe5#
      • 1...Kf5!
  • Keys
    • 1.d4!
      • threat
        • 2.Sd5#
      • 1...Rc2
        • 2.Sd3#
      • 1...Re4
        • 2.Sd3#
      • 1...Re5
        • 2.Qxe5#
      • 1...Se4
        • 2.Qe5#
      • 1...Sf6
        • 2.Qxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • R(b);N_GUARD::QAB1(H)
    • R(b);N_GUARD,XS(C)::QAB1(H)
    • R(b);N_GUARD::QAB1(H),XR(b)
    • S(h);N_GUARD,S_CUTB(i)::QAB1(H),XS(f)
  • Tries
    • Try
      • Q(H);CHECK
      • Vars
        • K(d);P_SPINR(b),S_FLIGHT::S(C)
        • R(b);N_GUARD,P_SPINR(b)::QAB1(H),XR(b)
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • P(E);
    • Threat
      • S(F)
    • Vars
      • R(b);P_PINQ(H)::S(F)
      • R(b);::S(F)
      • R(b);N_GUARD::QAB1(H),XR(b)
      • S(f);S_CUTR(b)::QAB1(H)
      • S(h);N_GUARD,S_CUTB(i)::QAB1(H),XS(f)
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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).