MESON Chess Problem Database

Problem Display
PID: 146505 (1Q2R1n1/Bn2b3/5pp1/3B2P1/1N1P3N/K3kP2/P6R/4r3 w - - 0 1)

Redaelli, F

La Settimana Enigmistica, 1936

1Q2R1n1/Bn2b3/5pp1/3B2P1/1N1P3N/K3kP2/P6R/4r3

#2

12 + 7

14868 Pirnie Collection 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Sh6
      • 2.Rxe7#
    • 1...fxg5
      • 2.Qe5#
    • 1...f5
      • 2.Qe5#
  • Tries
    • 1.Sxg6?
      • threat
        • 2.Qf4#
      • 1...fxg5
        • 2.Qe5#
      • 1...Sd6!
  • Keys
    • 1.Bc4!
      • 1...fxg5
        • 2.Qe5#
      • 1...Re2
        • 2.Rxe2#
      • 1...Sc5
        • 2.Sc2#
      • 1...Sd6
        • 2.Sd5#
      • 1...Ra1
        • 2.Re2#
      • 1...Rb1
        • 2.Re2#
      • 1...Rc1
        • 2.Re2#
      • 1...Rd1
        • 2.Re2#
      • 1...Rf1
        • 2.Re2#
      • 1...Rg1
        • 2.Re2#
      • 1...Rh1
        • 2.Re2#
      • 1...Sa5
        • 2.d5#
      • 1...Sd8
        • 2.d5#
      • 1...Sh6
        • 2.Rxe7#
      • 1...f5
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
    • S(g);N_GUARD::R(L),XB(f)
    • P(c);N_GUARD,XP(I)::QAR2(K)
    • P(c);N_GUARD::QAR2(K)
  • Tries
    • Try
      • S(G);XP(d)
      • Threat
        • QAB1(K)
      • Vars
        • P(c);N_GUARD,XP(I)::QAR2(K)
      • Refutation
        • S(e);N_PINS(E)
  • Actual
    • B(H);
    • Vars
      • P(c);N_GUARD,XP(I)::QAR2(K)
      • R(a);N_GUARD::R1(B),XR(a)
      • S(e);N_PINS(E)::S(E)
      • R(a);N_GUARD,P_PINP(A)::R1(B)
      • R(a);N_GUARD::R1(B)
      • S(e);N_GUARD::B(J)+P(F)
      • S(g);N_GUARD::R(L),XB(f)
      • P(c);N_GUARD::QAR2(K)
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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).