MESON Chess Problem Database

Problem Display
PID: 246659 (B2R4/2p1N3/3Pp1P1/4k2N/3n4/r1n1P2K/1B2QR1b/qr6 w - - 0 1)

Morra, Juan Carlos

El Ajedrez Espanol, 1955

B2R4/2p1N3/3Pp1P1/4k2N/3n4/r1n1P2K/1B2QR1b/qr6

#2

11 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bf4
      • 2.exf4#
  • Keys
    • 1.Rf4!
      • threat
        • 2.exd4#
      • 1...Bxf4
        • 2.exf4#
      • 1...Scxe2
        • 2.Re4#
      • 1...Sdxe2
        • 2.Re4#
      • 1...Sd1
        • 2.Re4#
      • 1...Sa2
        • 2.Re4#
      • 1...Sa4
        • 2.Re4#
      • 1...Se4
        • 2.Rxe4#
      • 1...Scb5
        • 2.Re4#
      • 1...Sd5
        • 2.Sc6#
      • 1...Sc2
        • 2.Re4#
      • 1...Sb3
        • 2.Re4#
      • 1...Sf3
        • 2.Re4#
      • 1...Sdb5
        • 2.Re4#
      • 1...Sf5
        • 2.Re4#
      • 1...Sc6
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 14
    • REMOVED MATES = 0
  • Sets
    • B(c);OGATE::QAR(B)+P(D)DCHECK,XB(c)
  • Actual
    • R(C);
    • Threat
      • QAR(B)+P(D)DCHECK,XS(f)
    • Vars
      • B(c);OGATE,XR(C)::QAR(B)+P(D)DCHECK,XB(c)
      • S(e);N_GUARD,P_PINP(D),P_SPINS(f),XQ(B)::R1(C)
      • S(f);P_SPINS(e),XQ(B)::R1(C)
      • S(e);N_GUARD,P_PINP(D),P_SPINS(f)::R1(C)
      • S(e);N_GUARD,P_PINP(D),P_SPINS(f)::R1(C),XS(e)
      • S(e);P_PINP(D),P_SPINS(f),SBLOCK::S(I)
      • S(f);P_SPINS(e)::R1(C)
      • S(f);N_GUARD,P_SPINS(e),S_CUTP(i)::QAR(B)
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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).