MESON Chess Problem Database

Problem Display
PID: 198268 (3r4/1Q1p3q/2B1P1P1/r1k5/1p1R1Np1/1P2Pb2/p2Kp3/N1n1n3 w - - 0 1)

Rivera, Luis G

Rivista del Club Argentino de Ajedrez, 1920

3r4/1Q1p3q/2B1P1P1/r1k5/1p1R1Np1/1P2Pb2/p2Kp3/N1n1n3

#2

10 + 12

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Ra3
      • 2.Qb5#
    • 1...Ra4
      • 2.Qb5#
    • 1...Rb5
      • 2.Qxb5#
    • 1...Ra6
      • 2.Qb5#
    • 1...Ra7
      • 2.Qb5#
    • 1...Raa8
      • 2.Qb5#
    • 1...Bd5
      • 2.Rxd5#
    • 1...Bxc6
      • 2.Qxb4#
    • 1...Sxb3+
      • 2.Sxb3#
    • 1...dxc6
      • 2.Qxb4#
    • 1...dxe6
      • 2.Sxe6#
    • 1...d6
      • 2.Rc4#
  • Keys
    • 1.Qc7!
      • threat
        • 2.Rc4#
      • 1...Sxb3+
        • 2.Sxb3#
      • 1...Bxc6
        • 2.Rd5#
      • 1...dxc6
        • 2.Qxa5#
      • 1...dxe6
        • 2.Sxe6#
      • 1...Bd5
        • 2.Rxd5#
      • 1...d5
        • 2.Bd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • R(h);N_GUARD::QAR1(J)
    • R(h);N_GUARD::QAR1(J),XR(h)
    • B(e);N_GUARD::R1(E),XB(e)
    • B(e);SBLOCK,XB(G)::QAB1(J),XP(f)
    • S(a);CHECK,XP(C)::S(A),XS(a)
    • P(j);P_PINR(E),SBLOCK,XB(G)::QAB1(J),XP(f)
    • P(j);P_PINR(E),XP(H)::S(F),XP(j)
    • P(j);SBLOCK::R1(E)
  • Actual
    • Q(J);
    • Threat
      • R1(E)
    • Vars
      • S(a);CHECK,XP(C)::S(A),XS(a)
      • B(e);N_GUARD,P_SPINB(e),XB(G)::R1(E)
      • P(j);P_PINR(E),P_SPINP(j),SBLOCK,XB(G)::QAR2(J),XR(h)
      • P(j);P_PINR(E),XP(H)::S(F),XP(j)
      • B(e);N_GUARD::R1(E),XB(e)
      • P(j);S_CUTB(e)::QAR(J)+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).