MESON Chess Problem Database

Problem Display
PID: 48933 (3r1b2/1qp3pK/1Pp1R1B1/QN2p3/P1k2P2/n2nr2p/P1N5/1b1R4 w - - 0 1)

Ellerman, Arnoldo

1001 Problemas, 1945

3r1b2/1qp3pK/1Pp1R1B1/QN2p3/P1k2P2/n2nr2p/P1N5/1b1R4

#2

11 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Sbxa3#
    • 1...Rd5
      • 2.Qc3#
    • 1...Rd6
      • 2.Sbxa3#
    • 1...Sc5
      • 2.Sxe3#
      • 2.Qb4#
    • 1...c5
      • 2.Sxe3#
  • Keys
    • 1.Bf7!
      • threat
        • 2.Rxc6#
      • 1...Kc5
        • 2.Sbxa3#
      • 1...Kd5
        • 2.Rxe5#
      • 1...cxb5
        • 2.Rc6#
      • 1...Rd5
        • 2.Qc3#
      • 1...Rd6
        • 2.Sbxa3#
      • 1...Bc5
        • 2.Rd6#
      • 1...Bd6
        • 2.Rxe5#
      • 1...Sc5
        • 2.Qb4#
      • 1...c5
        • 2.Sxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(f);P-FLIGHT::QAR(F)+S(G),XS(b)
    • R(l);SBLOCK::QAR1(F)
    • R(l);S_CUTB(m)::S(G),XS(b)
    • P(h);SBLOCK::S(C),XR(d)
  • Actual
    • B(J);
    • Threat
      • B(J)+R(I),DCHECK,XP(h)
    • Vars
      • K(f);P-FLIGHT::QAR(F)+S(G),XS(b)
      • K(f);P_SPINS(c),S_FLIGHT::B(J)+R(I),DCHECK,XP(g)
      • P(h);XS(G)::B(J)+R(I),DCHECK
      • R(l);SBLOCK::QAR1(F)
      • R(l);S_CUTB(m)::S(G),XS(b)
      • B(m);SBLOCK::B(J)+R(I)
      • B(m);S_CUTR(l)::B(J)+R(I),XP(g)
      • S(c);N_GUARD,P_PINS(C),S_CUTB(m)::QAR1(F)
      • P(h);SBLOCK::S(C),XR(d)
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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).