MESON Chess Problem Database

Problem Display
PID: 123417 (8/8/1N6/pk6/3Q4/4N3/3n4/7K w - - 0 1)

Libis, Zdenek

Vox, 2004

8/8/1N6/pk6/3Q4/4N3/3n4/7K

#2

4 + 3

6490 yacpdb 2009
5454 Near Snap 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Sa4?
      • 1...Ka6
        • 2.Qb6#
      • 1...Sc4
        • 2.Qxc4#
      • 1...Sb1
        • 2.Qc4#
      • 1...Sf1
        • 2.Qc4#
      • 1...Sb3
        • 2.Qc4#
      • 1...Sf3
        • 2.Qc4#
      • 1...Se4
        • 2.Qc4#
      • 1...Kc6!
    • 1.Sbd5?
      • 1...Ka6
        • 2.Qb6#
      • 1...Sc4
        • 2.Qxc4#
      • 1...a4
        • 2.Qb6#
      • 1...Sb1
        • 2.Qc4#
      • 1...Sf1
        • 2.Qc4#
      • 1...Sb3
        • 2.Qc4#
      • 1...Sf3
        • 2.Qc4#
      • 1...Se4
        • 2.Qc4#
      • 1...Kc6!
    • 1.Sd7?
      • 1...Ka6
        • 2.Qb6#
      • 1...Sc4
        • 2.Qxc4#
      • 1...a4
        • 2.Qb6#
      • 1...Sb1
        • 2.Qc4#
      • 1...Sf1
        • 2.Qc4#
      • 1...Sb3
        • 2.Qc4#
      • 1...Sf3
        • 2.Qc4#
      • 1...Se4
        • 2.Qc4#
      • 1...Kc6!
    • 1.Sc8?
      • 1...Ka6
        • 2.Qb6#
      • 1...Sc4
        • 2.Qxc4#
      • 1...a4
        • 2.Qb6#
      • 1...Sb1
        • 2.Qc4#
      • 1...Sf1
        • 2.Qc4#
      • 1...Sb3
        • 2.Qc4#
      • 1...Sf3
        • 2.Qc4#
      • 1...Se4
        • 2.Qc4#
      • 1...Kc6!
  • Keys
    • 1.Sa8!
      • 1...Ka6
        • 2.Qb6#
      • 1...Kc6
        • 2.Qd5#
      • 1...Sc4
        • 2.Qxc4#
      • 1...a4
        • 2.Qb6#
      • 1...Sb1
        • 2.Qc4#
      • 1...Sf1
        • 2.Qc4#
      • 1...Sb3
        • 2.Qc4#
      • 1...Sf3
        • 2.Qc4#
      • 1...Se4
        • 2.Qc4#

Anticipated by 101965(1998)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Vars
        • K(c);S_FLIGHT::QAR1(C)
        • S(a);N_GUARD::QAB1(C),XS(a)
        • S(a);N_GUARD::QAB1(C)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(c);S_FLIGHT::QAR1(C)
        • S(a);N_GUARD::QAB1(C),XS(a)
        • P(b);SBLOCK::QAR1(C)
        • S(a);N_GUARD::QAB1(C)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(c);S_FLIGHT::QAR1(C)
        • S(a);N_GUARD::QAB1(C),XS(a)
        • P(b);SBLOCK::QAR1(C)
        • S(a);N_GUARD::QAB1(C)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(c);S_FLIGHT::QAR1(C)
        • S(a);N_GUARD::QAB1(C),XS(a)
        • P(b);SBLOCK::QAR1(C)
        • S(a);N_GUARD::QAB1(C)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(c);S_FLIGHT::QAR1(C)
      • K(c);S_FLIGHT::QAB1(C)
      • S(a);N_GUARD::QAB1(C),XS(a)
      • P(b);SBLOCK::QAR1(C)
      • S(a);N_GUARD::QAB1(C)
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