MESON Chess Problem Database

Problem Display
PID: 276359 (2RK4/1pBB4/2P1pN2/1Pk1P3/7p/1Q1p1P2/3p1qN1/8 w - - 0 1)

Strebkovs, Andrejs

Pat a Mat, 2005

2RK4/1pBB4/2P1pN2/1Pk1P3/7p/1Q1p1P2/3p1qN1/8

#2

11 + 7

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qb4#
  • Tries
    • 1.Bd6+?
      • 1...Kd4
        • 2.Qb4#
      • 1...Kb6!
    • 1.Bxe6?
      • threat
        • 2.Qc4#
      • 1...Kd4
        • 2.Qc4#
        • 2.Qb4#
      • 1...Qd4+!
    • 1.cxb7?
      • threat
        • 2.Qc3#
      • 1...Kd4
        • 2.Qb4#
      • 1...Qd4
        • 2.Ba5#
      • 1...d1S!
  • Keys
    • 1.Ba5!
      • threat
        • 2.Qb4#
      • 1...Kd4
        • 2.Qc3#
      • 1...Qd4
        • 2.cxb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(e);N_GUARD,S_FLIGHT::QAR2(B)
  • Tries
    • Try
      • B(H);CHECK
      • Vars
        • K(e);N_GUARD,S_FLIGHT::QAR2(B)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • B(I);XP(f)
      • Threat
        • QAR1(B)
      • Refutation
        • Q(b);CHECK
    • Try
      • P(F);XP(g)
      • Threat
        • QAR2(B)
      • Vars
        • K(e);N_GUARD,S_FLIGHT::QAR2(B)
        • Q(b);P_PINB(I),SBLOCK::R(J)+B(H)
      • Refutation
        • P(a);
  • Actual
    • B(H);
    • Threat
      • QAB1(B)
    • Vars
      • K(e);N_GUARD,S_FLIGHT::QAB1(B)
      • Q(b);P_PINB(I),SBLOCK::R(J)+P(F),XP(g)
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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).