MESON Chess Problem Database

Problem Display
PID: 266883 (3r4/p3p2Q/7P/K3Rn1r/N1pk2N1/4p1p1/4P1B1/8 w - - 0 1)

Bottacchi, Antonio

Realismo e romanticismo nell'arte problemistica di Antonio B, 2005

3r4/p3p2Q/7P/K3Rn1r/N1pk2N1/4p1p1/4P1B1/8

#2

8 + 9

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5+
      • 2.Rxd5#
    • 1...Ra8
      • 2.Rd5#
    • 1...Rb8
      • 2.Rd5#
    • 1...Rc8
      • 2.Rd5#
    • 1...Re8
      • 2.Rd5#
    • 1...Rf8
      • 2.Rd5#
    • 1...Rg8
      • 2.Rd5#
    • 1...Rh8
      • 2.Rd5#
    • 1...Sh4
      • 2.Qe4#
    • 1...Sxh6
      • 2.Qe4#
    • 1...Sg7
      • 2.Qe4#
    • 1...e6
      • 2.Qxa7#
  • Tries
    • 1.Qxf5?
      • threat
        • 2.Re4#
        • 2.Qe4#
        • 2.Qf4#
      • 1...Rd5+
        • 2.Rxd5#
      • 1...Rf8
        • 2.Re4#
        • 2.Rd5#
        • 2.Qe4#
        • 2.Qd7#
      • 1...Rxf5!
    • 1.Qg8?
      • threat
        • 2.Re4#
      • 1...Rd5+
        • 2.Rxd5#
        • 2.Qxd5#
      • 1...Rxg8
        • 2.Rd5#
      • 1...Sxh6
        • 2.Qxd8#
      • 1...Sd6
        • 2.Qd5#
      • 1...Sh4
        • 2.Qxd8#
      • 1...Sg7
        • 2.Qxd8#
      • 1...e6!
    • 1.Qh8?
      • threat
        • 2.Rd5#
      • 1...Rd5+
        • 2.Rxd5#
      • 1...Sg7
        • 2.Qxd8#
      • 1...c3!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Re4#
      • 1...Rd5+
        • 2.Rxd5#
        • 2.Qxd5#
      • 1...Sxh6
        • 2.Qf4#
      • 1...Sd6
        • 2.Qd5#
      • 1...Sh4
        • 2.Qf4#
      • 1...Sg7
        • 2.Qf4#
      • 1...e6
        • 2.Qxa7#

This is a version

Version by Oscar Bonivento.

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 8
  • Sets
    • R(i);CHECK,N_GUARD::R1(F),XR(i)
    • R(i);N_GUARD::R1(F)
    • S(e);OGATE,P_PINR(F)::QAR1(H)
    • S(e);OGATE,P_PINR(F),XP(G)::QAR1(H)
    • P(h);OGATE::QAB(H),XP(g)
  • Tries
    • Try
      • Q(H);XS(e)
      • Threat
        • DUALS(3)
      • Vars
        • R(i);CHECK,N_GUARD::R1(F),XR(i)
      • Refutation
        • R(f);P_PINR(F),XQ(H)
    • Try
      • Q(H);
      • Threat
        • R1(F)
      • Vars
        • R(i);N_GUARD,XQ(H)::R1(F)
        • S(e);N_GUARD,P_PINR(F),XP(G)::QAR(H),XR(i)
        • S(e);P_PINR(F),S_CUTR(i)::QAR1(H)
        • S(e);N_GUARD,P_PINR(F)::QAR(H),XR(i)
      • Refutation
        • P(h);
    • Try
      • Q(H);
      • Threat
        • QAB(H)+R(F),DCHECK
      • Vars
        • R(i);CHECK::QAB(H)+R(F),DCHECK,XR(i)
        • S(e);N_GUARD,P_PINR(F)::QAR(H),XR(i)
      • Refutation
        • P(c);
  • Actual
    • Q(H);
    • Threat
      • R1(F)
    • Vars
      • S(e);OGATE,P_PINR(F),XP(G)::QAR2(H)
      • S(e);P_PINR(F),S_CUTR(i)::QAR1(H)
      • S(e);OGATE,P_PINR(F)::QAR2(H)
      • P(h);OGATE::QAB(H),XP(g)
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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).