MESON Chess Problem Database

Problem Display
PID: 276597 (QN6/1K6/R1pkpP2/2N5/2pPq3/B4B2/6b1/8 w - - 0 1)

Rizzetti, Dante Hugo

1st HM., To Mat, 1955

QN6/1K6/R1pkpP2/2N5/2pPq3/B4B2/6b1/8

#2

9 + 6

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1+
      • 2.Sb3#
    • 1...Qc2
      • 2.Sb3#
      • 2.Sd3#
      • 2.Sa4#
      • 2.Scd7#
      • 2.Rxc6#
    • 1...Qd3
      • 2.Sb3#
      • 2.Sxd3#
      • 2.Rxc6#
    • 1...Qd5
      • 2.Se4#
    • 1...Qf5
      • 2.Rxc6#
    • 1...Qg6
      • 2.Sb3#
      • 2.Sd3#
      • 2.Sa4#
      • 2.Scd7#
      • 2.Rxc6#
    • 1...Qh7+
      • 2.Scd7#
    • 1...Qe1
      • 2.Rxc6#
    • 1...Qe2
      • 2.Sb3#
      • 2.Sd3#
      • 2.Sa4#
      • 2.Scd7#
      • 2.Rxc6#
    • 1...Qe3
      • 2.Sb3#
      • 2.Sd3#
      • 2.Rxc6#
    • 1...Qf4
      • 2.Sb3#
      • 2.Sd3#
      • 2.Sa4#
      • 2.Scd7#
      • 2.Rxc6#
    • 1...Qg4
      • 2.Sb3#
      • 2.Sd3#
      • 2.Sa4#
      • 2.Scd7#
      • 2.Rxc6#
    • 1...Qh4
      • 2.Sb3#
      • 2.Sd3#
      • 2.Sa4#
      • 2.Scd7#
      • 2.Rxc6#
    • 1...Qe5
      • 2.Rxc6#
  • Tries
    • 1.Bxe4?
      • threat
        • 2.Sb3#
        • 2.Sd3#
        • 2.Sa4#
        • 2.Scd7#
        • 2.Rxc6#
      • 1...e5
        • 2.Rxc6#
      • 1...Bxe4!
  • Keys
    • 1.Sxc6!
      • threat
        • 2.Qd8#
      • 1...Qb1+
        • 2.Sb4#
      • 1...Qxc6+
        • 2.Rxc6#
      • 1...Qh7+
        • 2.Se7#
      • 1...Kd5
        • 2.Qd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • Q(c);CHECK::B(A)+S(D)
    • Q(c);SBLOCK::B(A)+S(D),DCHECK
    • Q(c);N_GUARD::R1(E),XP(d)
  • Tries
    • Try
      • B(B);XQ(c)
      • Threat
        • DUALS(5)
      • Vars
        • P(f);::R1(E),XP(d)
      • Refutation
        • B(a);XB(B)
  • Actual
    • S(I);P_SPINS(I),XP(d)
    • Threat
      • QAR2(H)
    • Vars
      • Q(c);CHECK,N_PINS(I)::R(E)+S(I)
      • Q(c);CHECK,OGATE,P_SPINQ(c),XS(I)::R1(E),XQ(c)
      • K(e);N_PINS(I),P-FLIGHT,P_SPINQ(c)::QAR(H)
HTML5 logo

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).