MESON Chess Problem Database

Problem Display
PID: 195176 (B7/R1K2p2/p4pq1/3R2p1/p1p1k1p1/2P1p1Q1/1n5n/1r1b2b1 w - - 0 1)

Sparke, Arthur M

Densmore MT (Pittsburgh Gazette-Times), 1918

B7/R1K2p2/p4pq1/3R2p1/p1p1k1p1/2P1p1Q1/1n5n/1r1b2b1

#2

6 + 15

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qf5
      • 2.Rd4#
    • 1...Sd3
      • 2.Rb5#
      • 2.Re5#
    • 1...Sf3
      • 2.Qxg4#
    • 1...e2
      • 2.Ra5#
      • 2.Rb5#
      • 2.Rc5#
      • 2.Re5#
      • 2.Rxg5#
    • 1...f5
      • 2.Rd4#
      • 2.Rd6#
  • Tries
    • 1.Kd6?
      • threat
        • 2.Re7#
      • 1...Qf5
        • 2.Rd4#
      • 1...Sd3
        • 2.Rb5#
        • 2.Re5#
      • 1...Sf3
        • 2.Qxg4#
      • 1...f5+!
    • 1.Kb8?
      • threat
        • 2.Re7#
      • 1...Sd3+
        • 2.Rb5#
      • 1...Qf5
        • 2.Rd4#
      • 1...Sf3
        • 2.Qxg4#
      • 1...f5
        • 2.Rd4#
        • 2.Rd6#
      • 1...Qg8+!
    • 1.Kd8?
      • threat
        • 2.Re7#
      • 1...Qf5
        • 2.Rd4#
      • 1...Sd3
        • 2.Rb5#
        • 2.Re5#
      • 1...Sf3
        • 2.Qxg4#
      • 1...f5
        • 2.Rd4#
        • 2.Rd6#
      • 1...Qg8+!
  • Keys
    • 1.Kb6!
      • threat
        • 2.Re7#
      • 1...Sd3+
        • 2.Rb5#
      • 1...e2+
        • 2.Rc5#
      • 1...f5+
        • 2.Rd6#
      • 1...Qf5
        • 2.Rd4#
      • 1...Sf3
        • 2.Qxg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • Q(n);SBLOCK::B(F)+R(C),DCHECK
    • S(e);N_GUARD,S_CUTB(b)::QAR2(B),XP(j)
  • Tries
    • Try
      • K(E);S_FLIGHT
      • Threat
        • R(D)
      • Vars
        • Q(n);SBLOCK::B(F)+R(C),DCHECK
        • S(e);N_GUARD,S_CUTB(b)::QAR2(B),XP(j)
      • Refutation
        • P(m);CHECK
    • Try
      • K(E);S_FLIGHT
      • Threat
        • R(D)
      • Vars
        • S(d);CHECK,SBLOCK::B(F)+R(C)
        • Q(n);SBLOCK::B(F)+R(C),DCHECK
        • S(e);N_GUARD,S_CUTB(b)::QAR2(B),XP(j)
      • Refutation
        • Q(n);CHECK
    • Try
      • K(E);S_FLIGHT
      • Threat
        • R(D)
      • Vars
        • Q(n);SBLOCK::B(F)+R(C),DCHECK
        • S(e);N_GUARD,S_CUTB(b)::QAR2(B),XP(j)
      • Refutation
        • Q(n);CHECK
  • Actual
    • K(E);S_FLIGHT
    • Threat
      • R(D)
    • Vars
      • S(d);CHECK,SBLOCK::B(F)+R(C)
      • P(f);CHECK::B(F)+R(C)
      • P(m);CHECK,SBLOCK::B(F)+R(C)
      • Q(n);SBLOCK::B(F)+R(C),DCHECK
      • S(e);N_GUARD,S_CUTB(b)::QAR2(B),XP(j)
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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).