MESON Chess Problem Database

Problem Display
PID: 153729 (4K3/4P3/4k3/3rBr2/2p3p1/1N5N/8/1B5Q w - - 0 1)

Werner, Klaus

Cheltenham Examiner, 1890

(First published on Wed Aug 6 1890)

4K3/4P3/4k3/3rBr2/2p3p1/1N5N/8/1B5Q

#2

7 + 5

15239 Valois Notebooks 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Rdxe5
      • 2.Qc6#
  • Keys
    • 1.Qe4!
      • threat
        • 2.Qxf5#
      • 1...Rd8+
        • 2.exd8S#
      • 1...Rf8+
        • 2.exf8S#
      • 1...Rdxe5
        • 2.Qc6#
      • 1...Rfxe5
        • 2.Qg6#
      • 1...Rd1
        • 2.Sc5#
      • 1...Rd2
        • 2.Sc5#
      • 1...Rd3
        • 2.Sc5#
      • 1...Rd4
        • 2.Sxd4#
        • 2.Sc5#
      • 1...Ra5
        • 2.Sd4#
      • 1...Rb5
        • 2.Sd4#
      • 1...Rc5
        • 2.Sd4#
        • 2.Sxc5#
      • 1...Rd6
        • 2.Sc5#
      • 1...Rd7
        • 2.Sc5#
      • 1...Rf1
        • 2.Sg5#
      • 1...Rf2
        • 2.Sg5#
      • 1...Rf3
        • 2.Sg5#
      • 1...Rf4
        • 2.Sxf4#
        • 2.Sg5#
      • 1...Rg5
        • 2.Sf4#
        • 2.Sxg5#
      • 1...Rh5
        • 2.Sf4#
      • 1...Rf6
        • 2.Sg5#
      • 1...Rf7
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 16
    • REMOVED MATES = 0
  • Sets
    • R(c);OGATE,SBLOCK,XB(E)::QAR2(B)
  • Actual
    • Q(B);
    • Threat
      • QAB1(B),XR(d)
    • Vars
      • R(c);CHECK,OGATE::PXR(c)=S
      • R(d);CHECK,OGATE::PXR(d)=S
      • R(c);OGATE,P_SPINR(c),SBLOCK,XB(E)::QAR2(B)
      • R(d);OGATE,P_SPINR(d),SBLOCK,XB(E)::QAR2(B)
      • R(c);N_GUARD::S(C)
      • R(d);N_GUARD::S(D)
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