MESON Chess Problem Database

Problem Display
PID: 267706 (4RR2/8/6p1/1B1b3n/K2B1n1r/1p5p/1NpNP1pQ/4k3 w - - 0 1)

Chicco, Adriano

Highly Comm., El Diluvio, 1932-1933

4RR2/8/6p1/1B1b3n/K2B1n1r/1p5p/1NpNP1pQ/4k3

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Sxe2
      • 2.Rxe2#
  • Tries
    • 1.Sf3+?
      • 1...Kf1
        • 2.Qg1#
      • 1...Bxf3!
    • 1.Bf2+?
      • 1...Kxf2
        • 2.Sd3#
      • 1...Kxd2!
  • Keys
    • 1.Bc3!
      • threat
        • 2.Qg1#
      • 1...Sxe2+
        • 2.Sdc4#
      • 1...Sd3+
        • 2.Sdc4#
      • 1...Se6+
        • 2.Se4#
      • 1...Kf2
        • 2.Sd3#
      • 1...g1Q
        • 2.Qxg1#
      • 1...g1S
        • 2.Qxg1#
      • 1...g1B
        • 2.Qxg1#
      • 1...g1R
        • 2.Qxg1#
      • 1...Sg3
        • 2.Qxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • S(f);OGATE,P_PINB(F),P_SPINS(f),XP(C)::R1(H),XS(f)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(D)
      • Refutation
        • B(h);XS(B)
    • Try
      • B(F);CHECK
      • Vars
        • K(a);N_GUARD,P_SPINP(c),P_SPINS(f),S_FLIGHT,XB(F)::S(A)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
  • Actual
    • B(F);
    • Threat
      • QAR2(D)
    • Vars
      • S(f);CHECK,P_SPINS(f),XP(C)::B(F)+S(B)
      • S(f);CHECK::B(F)+S(B)
      • K(a);N_GUARD,P_SPINP(c),P_SPINS(f),S_FLIGHT::S(A)
      • P(c);::QAR2(D),XQ(c)
      • P(c);::QAR2(D),XS(c)
      • P(c);::QAR2(D),XB(c)
      • P(c);::QAR2(D),XR(c)
      • S(i);N_GUARD::QAB(D),XS(i)
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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).