MESON Chess Problem Database

Problem Display
PID: 4973 (8/8/1K6/1n1p4/2k5/1R2Q3/5n2/8 w - - 0 1)

Pradignat, Emile Leonard

Shakhmatny Zhurnal, 1895

8/8/1K6/1n1p4/2k5/1R2Q3/5n2/8

#2

3 + 4

119 Tidskrift for Schack 1909
2638 White to Play 1913
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Qd3#
    • 1...Sh1
      • 2.Qd3#
    • 1...Sd3
      • 2.Qxd3#
    • 1...Sh3
      • 2.Qd3#
    • 1...Se4
      • 2.Qd3#
    • 1...Sg4
      • 2.Qd3#
    • 1...Sa3
      • 2.Qc3#
    • 1...Sc3
      • 2.Qxc3#
    • 1...Sd4
      • 2.Qc3#
    • 1...Sd6
      • 2.Qc3#
    • 1...Sa7
      • 2.Qc3#
    • 1...Sc7
      • 2.Qc3#
    • 1...d4
      • 2.Qe6#
  • Tries
    • 1.Qf3?
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sc3
        • 2.Qxc3#
      • 1...Sd1
        • 2.Qd3#
      • 1...Sh1
        • 2.Qd3#
      • 1...Sh3
        • 2.Qd3#
      • 1...Se4
        • 2.Qd3#
      • 1...Sg4
        • 2.Qd3#
      • 1...Sa3
        • 2.Qc3#
      • 1...Sd4
        • 2.Qc3#
      • 1...Sd6
        • 2.Qc3#
      • 1...Sa7
        • 2.Qc3#
      • 1...Sc7
        • 2.Qc3#
      • 1...d4
        • 2.Qf7#
      • 1...Kd4!
  • Keys
    • 1.Qg3!
      • 1...Kd4
        • 2.Rb4#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sc3
        • 2.Qxc3#
      • 1...Sd1
        • 2.Qd3#
      • 1...Sh1
        • 2.Qd3#
      • 1...Sh3
        • 2.Qd3#
      • 1...Se4
        • 2.Qd3#
      • 1...Sg4
        • 2.Qd3#
      • 1...Sa3
        • 2.Qc3#
      • 1...Sd4
        • 2.Qc3#
      • 1...Sd6
        • 2.Qc3#
      • 1...Sa7
        • 2.Qc3#
      • 1...Sc7
        • 2.Qc3#
      • 1...d4
        • 2.Qg8#

This anticipates 205495(1925)

There are these versions: 33187

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::QAB1(B)
    • S(a);N_GUARD::QAB1(B),XS(a)
    • S(c);N_GUARD::QAR1(B)
    • S(c);N_GUARD::QAR1(B),XS(c)
    • P(d);OGATEB,SBLOCK::QAB(B)
  • Tries
    • Try
      • Q(B);
      • Vars
        • S(a);N_GUARD::QAB1(B),XS(a)
        • S(c);N_GUARD::QAR1(B),XS(c)
        • S(a);N_GUARD::QAB1(B)
        • S(c);N_GUARD::QAR1(B)
        • P(d);OGATEB,SBLOCK::QAB(B)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(b);P-FLIGHT::R(A)
      • S(a);N_GUARD::QAB1(B),XS(a)
      • S(c);N_GUARD::QAR1(B),XS(c)
      • S(a);N_GUARD::QAB1(B)
      • S(c);N_GUARD::QAR1(B)
      • P(d);OGATEB,SBLOCK::QAB(B)
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