MESON Chess Problem Database

Problem Display
PID: 170004 (5q2/3p4/P1kn2bR/1N1RP3/8/p3B3/Q1N2nB1/1K4b1 w - - 0 1)

Musante, Horacio Luis

Comm., Enroque!!, 1946

5q2/3p4/P1kn2bR/1N1RP3/8/p3B3/Q1N2nB1/1K4b1

#2

10 + 8

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc2+
      • 2.Qxc2#
    • 1...Be4
      • 2.Qc4#
    • 1...Bf5
      • 2.Qc4#
    • 1...Bh5
      • 2.Sb4#
      • 2.Qc4#
    • 1...Bf7
      • 2.Sb4#
      • 2.Qc4#
    • 1...Bh7
      • 2.Qc4#
    • 1...Be8
      • 2.Sb4#
      • 2.Qc4#
    • 1...Sfe4
      • 2.Sb4#
  • Tries
    • 1.Rxg6?
      • threat
        • 2.Sb4#
        • 2.Qc4#
      • 1...Qf4
        • 2.Rgxd6#
      • 1...Qf5
        • 2.Rgxd6#
        • 2.Qc4#
      • 1...Qf6
        • 2.Sb4#
      • 1...Se4
        • 2.Sb4#
      • 1...Sd3!
    • 1.exd6?
      • threat
        • 2.Sa7#
        • 2.Qc4#
      • 1...Bxc2+
        • 2.Qxc2#
      • 1...Qf4
        • 2.Sa7#
      • 1...Qa8
        • 2.Qc4#
      • 1...Qb8
        • 2.Qc4#
      • 1...Bd3
        • 2.Sa7#
      • 1...Sd3
        • 2.Sa7#
        • 2.Rf5#
      • 1...Se4
        • 2.Sb4#
        • 2.Sa7#
      • 1...Qxd6!
  • Keys
    • 1.Ba7!
      • threat
        • 2.Rc5#
      • 1...Bxc2+
        • 2.Qxc2#
      • 1...Sfe4
        • 2.Sb4#
      • 1...Sde4
        • 2.Scd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • B(f);CHECK,OGATE,P_SPINS(e),XS(C)::QAR(B),XB(f)
    • B(f);P_SPINS(e)::QAR2(B)
    • S(b);N_PINS(C)::S(C)
  • Tries
    • Try
      • R(J);N_SPINS(C),P_PINS(e),XB(f)
      • Threat
        • DUALS(2)
      • Vars
        • Q(h);N_GUARD::R1(J),XS(e)
        • Q(h);N_SPINS(e)::S(C)
        • S(b);::S(C)
      • Refutation
        • S(b);
    • Try
      • P(H);XS(e)
      • Threat
        • DUALS(2)
      • Vars
        • B(f);CHECK,OGATE,XS(C)::QAR(B),XB(f)
        • Q(h);::S(F)
        • Q(h);::QAR2(B)
        • B(f);::S(F)
      • Refutation
        • Q(h);XP(H)
  • Actual
    • B(E);
    • Threat
      • B(D)+R(G),DCHECK
    • Vars
      • B(f);CHECK,OGATE,P_SPINS(e),XS(C)::QAR(B),XB(f)
      • S(b);N_PINS(C)::S(C)
      • S(e);N_PINS(C),P_SPINB(f)::S(C)
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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).