MESON Chess Problem Database

Problem Display
PID: 166961 (8/3Q2pb/5k2/R7/4P3/4K3/8/8 w - - 0 1)

Klipachev, Vladimir Panteleevich

Sachmatija, 2010

8/3Q2pb/5k2/R7/4P3/4K3/8/8

#2

4 + 3

5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Kg6
      • 2.Qe6#
  • Tries
    • 1.Rf5+?
      • 1...Kg6
        • 2.Qc6#
        • 2.Qe6#
        • 2.Qd6#
      • 1...Bxf5!
    • 1.Ra6+?
      • 1...Ke5
        • 2.Re6#
        • 2.Qb5#
        • 2.Qe6#
        • 2.Qe8#
        • 2.Qd4#
        • 2.Qd5#
        • 2.Qd6#
        • 2.Qc7#
        • 2.Qe7#
        • 2.Qxg7#
      • 1...Kg5!
    • 1.Qe7+?
      • 1...Kg6
        • 2.Qe6#
      • 1...Kxe7!
    • 1.Qxg7+?
      • 1...Ke6
        • 2.Ra6#
      • 1...Kxg7!
  • Keys
    • 1.Re5!
      • threat
        • 2.Qe6#
      • 1...Kxe5
        • 2.Qe7#
      • 1...Kg6
        • 2.Qe6#
      • 1...Bf5
        • 2.Qxf5#
      • 1...Bg8
        • 2.Qf5#
      • 1...g5
        • 2.Re6#
      • 1...g6
        • 2.Qe7#

Anticipated by 239237(2008)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR2(D)
  • Tries
    • Try
      • R(C);CHECK
      • Refutation
        • B(c);XR(C)
    • Try
      • R(C);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR2(D)
      • Refutation
        • K(a);S_FLIGHT,XQ(D)
    • Try
      • Q(D);CHECK,XP(b)
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);S_FLIGHT,XQ(D)
  • Actual
    • R(C);
    • Threat
      • QAR1(D)
    • Vars
      • K(a);S_FLIGHT,XR(C)::QAR2(D)
      • K(a);P-FLIGHT::QAR2(D)
      • B(c);N_GUARD::QAR1(D),XB(c)
      • B(c);N_GUARD::QAR1(D)
      • P(b);SBLOCK::R1(C)
      • P(b);SBLOCK::QAB1(D)
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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).