MESON Chess Problem Database

Problem Display
PID: 73964 (K6B/7B/2Qp4/2p1n1p1/3Rn2r/2k1Nb1R/PbNp4/8 w - - 0 1)

Piatesi, Antonio

Tijdschrift vd KNSB, 1938

K6B/7B/2Qp4/2p1n1p1/3Rn2r/2k1Nb1R/PbNp4/8

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Sf2
      • 2.Sd5#
    • 1...Sg3
      • 2.Rd3#
    • 1...Sf6
      • 2.Sd1#
    • 1...Sd3
      • 2.Rc4#
  • Tries
    • 1.Qd5?
      • threat
        • 2.Rd3#
        • 2.Rc4#
        • 2.Qb3#
      • 1...cxd4
        • 2.Qb3#
        • 2.Qxd4#
      • 1...Ba1
        • 2.Qb3#
      • 1...Bc1
        • 2.Qb3#
      • 1...Ba3
        • 2.Qb3#
      • 1...d1Q
        • 2.Rc4#
        • 2.Qb3#
      • 1...d1R
        • 2.Rc4#
        • 2.Qb3#
      • 1...Be2
        • 2.Qb3#
      • 1...Sg3
        • 2.Rd3#
      • 1...Sf6
        • 2.Sd1#
      • 1...Sd3
        • 2.Rxd3#
        • 2.Rc4#
        • 2.Qb3#
        • 2.Qc4#
      • 1...Sc4
        • 2.Rd3#
        • 2.Rxc4#
        • 2.Qxc4#
      • 1...c4
        • 2.Rxc4#
        • 2.Qa5#
      • 1...Sf2!
    • 1.Qxc5+?
      • 1...Sxc5+
        • 2.Sd5#
      • 1...Sc4
        • 2.Qb4#
        • 2.Qxc4#
      • 1...dxc5!
  • Keys
    • 1.Qb7!
      • threat
        • 2.Qb3#
      • 1...Sf2
        • 2.Sd5#
      • 1...Sg3
        • 2.Rd3#
      • 1...Sf6
        • 2.Sd1#
      • 1...c4
        • 2.Qb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • S(e);P_PINQ(F)::S(C)
    • S(e);P_PINQ(F)::R1(E)
    • S(h);SBLOCK::B(I)+R(E),DCHECK
  • Tries
    • Try
      • Q(F);N_PINP(g)
      • Threat
        • DUALS(3)
      • Vars
        • B(a);::QAR1(F)
        • B(d);::QAR1(F)
        • S(e);P_PINQ(F)::R1(E)
        • S(e);P_PINQ(F)::S(C)
      • Refutation
        • S(e);P_PINQ(F)
    • Try
      • Q(F);CHECK,XP(g)
      • Vars
        • S(e);CHECK,XQ(F)::S(C)
      • Refutation
        • P(j);XQ(F)
  • Actual
    • Q(F);N_PINP(g)
    • Threat
      • QAR1(F)
    • Vars
      • S(e);P_PINQ(F)::S(C)
      • S(e);P_PINQ(F)::R1(E)
      • P(g);N_GUARD::QAB1(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).