MESON Chess Problem Database

Problem Display
PID: 153037 (Q5Bb/5b2/8/3RPpp1/4k3/K7/n2PN1P1/4R3 w - - 0 1)

Handloser, Ralf Chris

4th HM., Spisska Borovicka, 2014

Q5Bb/5b2/8/3RPpp1/4k3/K7/n2PN1P1/4R3

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd5
      • 2.Qxd5#
    • 1...Bxe5
      • 2.Rd4#
    • 1...f4
      • 2.Sg3#
  • Tries
    • 1.Rf1?
      • threat
        • 2.Sg3#
      • 1...Bxd5
        • 2.Qxd5#
      • 1...Bxe5
        • 2.Rd4#
      • 1...f4!
    • 1.Ra5+?
      • 1...Bd5
        • 2.Qxd5#
      • 1...Kd3!
    • 1.Rb5+?
      • 1...Bd5
        • 2.Qxd5#
      • 1...Kd3!
    • 1.Rc5+?
      • 1...Bd5
        • 2.Qxd5#
      • 1...Kd3!
    • 1.Rd6+?
      • 1...Bd5
        • 2.Qxd5#
      • 1...Kxe5!
    • 1.Rd7+?
      • 1...Bd5
        • 2.Qxd5#
      • 1...Kxe5!
    • 1.Rd8+?
      • 1...Bd5
        • 2.Qxd5#
      • 1...Kxe5!
    • 1.Qa5?
      • threat
        • 2.Rd4#
      • 1...Bxd5
        • 2.Qxd5#
      • 1...f4
        • 2.Sg3#
      • 1...Bxe5!
  • Keys
    • 1.Qc6!
      • threat
        • 2.Qc4#
      • 1...Bxd5
        • 2.Qxd5#
      • 1...Bxe5
        • 2.Rd4#
      • 1...f4
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • B(e);OGATE,P_SPINB(e),XR(F)::QAB1(H),XB(e)
    • B(f);SBLOCK,XP(G)::QAB(H)+R(F),DCHECK
    • P(c);SBLOCK::R(A)+S(C),DCHECK
  • Tries
    • Try
      • R(A);
      • Threat
        • S(C)
      • Vars
        • B(e);OGATE,P_SPINB(e),XR(F)::QAB1(H),XB(e)
        • B(f);SBLOCK,XP(G)::QAB(H)+R(F),DCHECK
      • Refutation
        • P(c);
    • Try
      • R(F);CHECK
      • Vars
        • B(e);N_GUARD,P_SPINB(e)::QAB1(H),XB(e)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(F);CHECK
      • Vars
        • B(e);N_GUARD,P_SPINB(e)::QAB1(H),XB(e)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(F);CHECK
      • Vars
        • B(e);N_GUARD,P_SPINB(e)::QAB1(H),XB(e)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(F);CHECK
      • Vars
        • B(e);N_GUARD,P_SPINB(e)::QAB1(H),XB(e)
      • Refutation
        • K(b);P-FLIGHT,XP(G)
    • Try
      • R(F);CHECK
      • Vars
        • B(e);N_GUARD,P_SPINB(e)::QAB1(H),XB(e)
      • Refutation
        • K(b);P-FLIGHT,XP(G)
    • Try
      • R(F);CHECK
      • Vars
        • B(e);N_GUARD,P_SPINB(e)::QAB1(H),XB(e)
      • Refutation
        • K(b);P-FLIGHT,XP(G)
    • Try
      • Q(H);
      • Threat
        • R1(F)
      • Vars
        • B(e);OGATE,XR(F)::QAB1(H),XB(e)
        • P(c);SBLOCK::R(A)+S(C),DCHECK
      • Refutation
        • B(f);XP(G)
  • Actual
    • Q(H);
    • Threat
      • QAR2(H)
    • Vars
      • B(e);OGATE,P_SPINB(e),XR(F)::QAB1(H),XB(e)
      • B(f);SBLOCK,XP(G)::QAB(H)+R(F),DCHECK
      • P(c);SBLOCK::R(A)+S(C),DCHECK
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).