MESON Chess Problem Database

Problem Display
PID: 102481 (3R4/8/1QpN4/2rp3K/RnbkPPp1/4r1P1/3Pqn2/2N3B1 w - - 0 1)

Sacconi, Ing

L'Echiquier, 1934-35

3R4/8/1QpN4/2rp3K/RnbkPPp1/4r1P1/3Pqn2/2N3B1

#2

11 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd3
      • 2.Sxe2#
    • 1...Rxe4
      • 2.Sf5#
    • 1...Bd3
      • 2.Sb3#
    • 1...Sfd3
      • 2.Sxe2#
    • 1...Sxe4
      • 2.Sf5#
    • 1...Sbd3
      • 2.Sb3#
    • 1...dxe4+
      • 2.Sf5#
  • Keys
    • 1.Qa7!
      • threat
        • 2.Qg7#
      • 1...dxe4+
        • 2.Sf5#
      • 1...Rxe4
        • 2.Sf5#
      • 1...Sxe4
        • 2.Sf5#
      • 1...Sfd3
        • 2.Sxe2#
      • 1...Sbd3
        • 2.Sb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • R(c);N_GUARD,P_SPINS(b),SBLOCK,S_CUTB(e)::S(A),XQ(a)
    • R(c);P_SPINS(b),SBLOCK,XP(F)::S(J)
    • B(e);N_GUARD,P_SPINS(d),SBLOCK,S_CUTR(c)::S(A)
    • S(b);N_SPINR(h),P_SPINR(c),SBLOCK,S_CUTB(e)::S(A),XQ(a)
    • S(b);N_SPINR(h),P_SPINR(c),SBLOCK,XP(F)::S(J)
    • S(d);P_SPINB(e),SBLOCK,S_CUTR(c)::S(A)
    • P(i);CHECK,SBLOCK,XP(F)::R(K)+S(J),DCHECK
  • Actual
    • Q(I);
    • Threat
      • QAB(I)
    • Vars
      • P(i);CHECK,SBLOCK,XP(F)::R(K)+S(J),DCHECK
      • R(c);P_SPINS(b),SBLOCK,XP(F)::S(J)
      • S(b);N_SPINR(h),P_SPINR(c),SBLOCK,XP(F)::S(J)
      • S(b);N_SPINR(h),P_SPINR(c),SBLOCK,S_CUTB(e)::S(A),XQ(a)
      • S(d);P_SPINB(e),SBLOCK,S_CUTR(c)::S(A)
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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).