MESON Chess Problem Database

Problem Display
PID: 243964 (7Q/5K2/3B4/1p6/5n2/1k6/R1Rpn3/2bN4 w - - 0 1)

Gvozdjak, Peter

2nd HM., Hlas l'udu, 1986

7Q/5K2/3B4/1p6/5n2/1k6/R1Rpn3/2bN4

#2

6 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bb2
      • 2.Qxb2#
    • 1...Sg1
      • 2.Qc3#
    • 1...Sc3
      • 2.Qxc3#
    • 1...Sg3
      • 2.Qc3#
  • Tries
    • 1.Rab2+?
      • 1...Ka4
        • 2.Qa8#
      • 1...Bxb2!
    • 1.Qc8?
      • 1...Bb2
        • 2.Rcxb2#
      • 1...Ba3
        • 2.Rxa3#
      • 1...Sd4
        • 2.Qc3#
      • 1...Sg1
        • 2.Qc3#
      • 1...Sc3
        • 2.Qxc3#
      • 1...Sg3
        • 2.Qc3#
      • 1...Sg2
        • 2.Qe6#
      • 1...Sd3
        • 2.Qe6#
      • 1...Sh3
        • 2.Qe6#
      • 1...Sh5
        • 2.Qe6#
      • 1...Se6
        • 2.Qxe6#
      • 1...Sg6
        • 2.Qe6#
      • 1...b4
        • 2.Qc4#
      • 1...Sd5!
  • Keys
    • 1.Qa8!
      • 1...Bb2
        • 2.Raxb2#
      • 1...Sc3
        • 2.Rxc3#
      • 1...Sd4
        • 2.Rc3#
      • 1...Ba3
        • 2.Qxa3#
      • 1...Sg1
        • 2.Rc3#
      • 1...Sg3
        • 2.Rc3#
      • 1...Sg2
        • 2.Qd5#
      • 1...Sd3
        • 2.Qd5#
      • 1...Sh3
        • 2.Qd5#
      • 1...Sd5
        • 2.Qxd5#
      • 1...Sh5
        • 2.Qd5#
      • 1...Se6
        • 2.Qd5#
      • 1...Sg6
        • 2.Qd5#
      • 1...b4
        • 2.Qa4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 4
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD::QAR1(F),XB(a)
    • S(c);N_GUARD::QAR1(F)
    • S(c);N_GUARD::QAR1(F),XS(c)
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • K(d);S_FLIGHT::QAR(F)
      • Refutation
        • B(a);XR(B)
    • Try
      • Q(F);
      • Vars
        • B(a);N_GUARD::R1(C),XB(a)
        • B(a);N_GUARD::R1(B),XB(a)
        • S(c);N_GUARD::QAR1(F)
        • S(c);N_GUARD::QAR1(F),XS(c)
        • S(e);N_GUARD::QAB(F)
        • S(e);N_GUARD::QAB(F),XS(e)
        • P(f);N_GUARD::QAB1(F)
      • Refutation
        • S(e);
  • Actual
    • Q(F);
    • Vars
      • B(a);N_GUARD::R1(B),XB(a)
      • S(c);N_GUARD::R1(C),XS(c)
      • S(c);N_GUARD::R1(C)
      • B(a);N_GUARD::QAR1(F),XB(a)
      • S(e);N_GUARD::QAB(F)
      • S(e);N_GUARD::QAB(F),XS(e)
      • P(f);N_GUARD::QAB1(F)
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