MESON Chess Problem Database

Problem Display
PID: 103780 (6rb/1q4Rp/4b3/1R1N1B1k/5B2/6P1/5N2/7K w - - 0 1)

Soranzo, Pier Giorgio

Telescacco 92, 1994

6rb/1q4Rp/4b3/1R1N1B1k/5B2/6P1/5N2/7K

#2

8 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qa6
      • 2.Sf6#
      • 2.Rxh7#
    • 1...Qc6
      • 2.Rxh7#
    • 1...Qa8
      • 2.Rxh7#
    • 1...Qc8
      • 2.Sf6#
      • 2.Rxh7#
    • 1...Qxb5
      • 2.Sf6#
      • 2.Rxh7#
    • 1...Qb6
      • 2.Sf6#
      • 2.Rxh7#
    • 1...Qa7
      • 2.Sf6#
    • 1...Qc7
      • 2.Sf6#
    • 1...Qd7
      • 2.Sf6#
    • 1...Qb8
      • 2.Sf6#
      • 2.Rxh7#
    • 1...Bd7
      • 2.Rxh7#
    • 1...Bf7
      • 2.Bg4#
      • 2.Rxh7#
    • 1...h6
      • 2.Bg6#
  • Tries
    • 1.Rg5+?
      • 1...Kh6
        • 2.Sg4#
      • 1...Rxg5!
  • Keys
    • 1.Be4!
      • threat
        • 2.Sf6#
      • 1...Qxd5
        • 2.Rxh7#
      • 1...Bxd5
        • 2.Bf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • Q(c);N_GUARD::R(H),XP(d)
    • Q(c);N_PINS(F)::S(F)
    • B(b);S_CUTQ(c)::R(H),XP(d)
    • P(d);N_GUARD::B(G)
  • Tries
    • Try
      • R(H);CHECK
      • Vars
        • K(a);P-FLIGHT::S(B)
      • Refutation
        • R(e);XR(H)
  • Actual
    • B(G);N_SPINS(F)
    • Threat
      • R(E)+S(F),DCHECK
    • Vars
      • Q(c);N_GUARD,P_PINB(G),P_SPINQ(c),XS(F)::R(H),XP(d)
      • B(b);N_GUARD,P_PINB(G),P_SPINB(b),XS(F)::B(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).