MESON Chess Problem Database

Problem Display
PID: 262373 (B2R4/8/1R2P3/N3k2n/4P2p/2p4b/1n3Q2/K7 w - - 0 1)

Caresmel, Andre

Scotti, Louis

4th HM., Europe Echecs, 1962

B2R4/8/1R2P3/N3k2n/4P2p/2p4b/1n3Q2/K7

#2

8 + 6

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Bf1
      • 2.Qf5#
    • 1...Bg2
      • 2.Qf5#
    • 1...Bf5
      • 2.Qxf5#
    • 1...Sd1
      • 2.Sc4#
    • 1...Sd3
      • 2.Sc4#
    • 1...Sa4
      • 2.Sc4#
    • 1...Sc4
      • 2.Sxc4#
    • 1...Sf4
      • 2.Qd4#
    • 1...Sf6
      • 2.Qh2#
  • Tries
    • 1.Sc6+?
      • 1...Kxe4
        • 2.Rd4#
      • 1...Kxe6!
    • 1.Qxh4?
      • threat
        • 2.Rd5#
      • 1...Bxe6
        • 2.Sc6#
      • 1...Sf4
        • 2.Qh8#
      • 1...Sf6
        • 2.Qg3#
      • 1...Bg4!
    • 1.Qf3?
      • threat
        • 2.Rd5#
      • 1...Bxe6
        • 2.Sc6#
      • 1...Bf5
        • 2.Qxf5#
      • 1...Sf4
        • 2.Qxc3#
      • 1...Sf6!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Rb5#
      • 1...Bxe6
        • 2.Rxe6#
      • 1...Bf5
        • 2.Qxf5#
      • 1...Sf6
        • 2.Qc7#
      • 1...Bf1
        • 2.Qf5#
      • 1...Sd3
        • 2.Sc4#
      • 1...Sa4
        • 2.Sc4#
      • 1...Sf4
        • 2.Qg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • B(c);N_GUARD::QAR1(B)
    • B(c);N_GUARD::QAR1(B),XB(c)
    • S(a);N_GUARD::S(D)
    • S(a);N_GUARD::S(D),XS(a)
    • S(f);SBLOCK::QAB1(B)
    • S(f);N_GUARD,SBLOCK::QAB(B)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(e);N_GUARD,P-FLIGHT,XP(C)::R1(H)
      • Refutation
        • K(e);P-FLIGHT,XP(F)
    • Try
      • Q(B);XP(d)
      • Threat
        • R1(H)
      • Vars
        • B(c);SBLOCK,XP(F)::S(D)
        • S(f);OGATE,SBLOCK::QAB(B)
        • S(f);N_GUARD,SBLOCK::QAB(B)
      • Refutation
        • B(c);
    • Try
      • Q(B);
      • Threat
        • R1(H)
      • Vars
        • B(c);SBLOCK,XP(F)::S(D)
        • B(c);N_GUARD::QAR1(B),XB(c)
        • S(f);SBLOCK::QAB(B),XP(b)
      • Refutation
        • S(f);
  • Actual
    • Q(B);
    • Threat
      • R(E)
    • Vars
      • B(c);OGATE,XP(F)::R1(E),XB(c)
      • B(c);N_GUARD::QAR1(B),XB(c)
      • S(f);SBLOCK::QAB(B)
      • B(c);N_GUARD::QAR1(B)
      • S(a);N_GUARD::S(D)
      • S(f);N_GUARD,SBLOCK::QAB(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).