MESON Chess Problem Database

Problem Display
PID: 207180 (5R1b/r1N2n1K/2B1p3/2Q2np1/3p1k2/3RN1pP/b5P1/1q6 w - - 0 1)

Chicco, Adriano

4th Prize, Il Problema, 1932

5R1b/r1N2n1K/2B1p3/2Q2np1/3p1k2/3RN1pP/b5P1/1q6

#2

9 + 11

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sg7
      • 2.Qxd4#
    • 1...Se5
      • 2.Qxd4#
  • Keys
    • 1.Sc4!
      • threat
        • 2.Sxe6#
        • 2.Rf3#
      • 1...Qxd3
        • 2.Sxe6#
      • 1...Rxc7
        • 2.Rf3#
      • 1...Bxc4
        • 2.Rf3#
      • 1...g4
        • 2.Sxe6#
      • 1...Qd1
        • 2.Sxe6#
      • 1...Qe1
        • 2.Rf3#
      • 1...Qf1
        • 2.Sxe6#
      • 1...Qb3
        • 2.Sxe6#
      • 1...Ra3
        • 2.Sxe6#
      • 1...Se3
        • 2.Sxe6#
      • 1...Sh4
        • 2.Sxe6#
      • 1...S5d6
        • 2.Sxe6#
      • 1...S5h6
        • 2.Sxe6#
      • 1...Se7
        • 2.Sxe6#
      • 1...Sg7
        • 2.Qe5#
      • 1...Se5
        • 2.Qxd4#
      • 1...S7d6
        • 2.Rf3#
      • 1...S7h6
        • 2.Rf3#
      • 1...Sd8
        • 2.Rf3#
      • 1...e5
        • 2.Se6#
        • 2.Rf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 17
    • REMOVED MATES = 0
  • Sets
    • S(f);N_GUARD,P_PINR(B),P_SPINS(j),S_CUTB(k)::QAR2(E),XP(d)
    • S(j);P_PINS(G),P_SPINS(f),S_CUTB(k)::QAR2(E),XP(d)
  • Actual
    • S(C);
    • Threat
      • DUALS(2)
    • Vars
      • Q(a);XR(B)::S(G),XP(h)
      • R(i);XS(G)::R1(B)
      • B(b);XS(C)::R1(B)
      • P(g);::S(G),XP(h)
      • Q(a);::S(G),XP(h)
      • Q(a);::R1(B)
      • R(i);::S(G),XP(h)
      • S(f);P_PINR(B),P_SPINS(j)::S(G),XP(h)
      • S(f);P_PINR(B),P_SPINS(j),S_CUTB(k)::QAB1(E)
      • S(j);P_PINS(G),P_SPINS(f),S_CUTB(k)::QAR2(E),XP(d)
      • S(j);P_PINS(G),P_SPINS(f)::R1(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).