MESON Chess Problem Database

Problem Display
PID: 223470 (5K2/n2p4/1P6/3kPb1B/1R3p2/2Q5/8/8 w - - 0 1)

Gold, Samuel

Bruderschaft, 1886

5K2/n2p4/1P6/3kPb1B/1R3p2/2Q5/8/8

#2

6 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Bf7#
    • 1...Bb1
      • 2.Bf7#
    • 1...Bc2
      • 2.Bf7#
    • 1...Bd3
      • 2.Bf7#
    • 1...Be4
      • 2.Bf7#
    • 1...Be6
      • 2.Bf3#
    • 1...Bh7
      • 2.Bf7#
  • Tries
    • 1.Rd4+?
      • 1...Ke6
        • 2.Rd6#
      • 1...Kxe5!
    • 1.Rb5+?
      • 1...Ke4
        • 2.Bf3#
      • 1...Ke6
        • 2.Bf7#
      • 1...Sxb5!
    • 1.Qd4+?
      • 1...Ke6
        • 2.Bf7#
        • 2.Qd6#
      • 1...Kc6!
    • 1.Qc5+?
      • 1...Ke6
        • 2.Bf7#
        • 2.Qd6#
      • 1...Kxc5!
  • Keys
    • 1.Re4!
      • threat
        • 2.Qc4#
      • 1...Kxe4
        • 2.Bf3#
      • 1...Ke6
        • 2.Bf7#
      • 1...Bxe4
        • 2.Bf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • K(b);S_FLIGHT::B(D)
    • B(c);N_GUARD::B(D)
    • B(c);N_GUARD,SBLOCK::B(D)
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::R1(B)
      • Refutation
        • K(b);P-FLIGHT,XP(C)
    • Try
      • R(B);CHECK
      • Vars
        • K(b);S_FLIGHT::B(D)
      • Refutation
        • S(d);XR(B)
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);P-FLIGHT,XQ(A)
  • Actual
    • R(B);
    • Threat
      • QAB1(A)
    • Vars
      • K(b);OGATEB,S_FLIGHT,XR(B)::B(D)
      • K(b);S_FLIGHT::B(D)
      • B(c);N_GUARD,SBLOCK,XR(B)::B(D)
HTML5 logo

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).