MESON Chess Problem Database

Problem Display
PID: 104525 (3Bk1K1/4P1P1/1n6/8/8/8/8/3Q4 w - - 0 1)

Nesic, Milivoj S

Mezija, 1996

3Bk1K1/4P1P1/1n6/8/8/8/8/3Q4

#2

5 + 2

6490 yacpdb 2009
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sa4
      • 2.Qxa4#
    • 1...Sc4
      • 2.Qa4#
    • 1...Sd5
      • 2.Qa4#
    • 1...Sd7
      • 2.Qh5#
    • 1...Sa8
      • 2.Qa4#
    • 1...Sc8
      • 2.Qa4#
  • Tries
    • 1.Qc2?
      • 1...Sa4
        • 2.Qxa4#
        • 2.Qc6#
      • 1...Sc4
        • 2.Qa4#
      • 1...Sd5
        • 2.Qa4#
        • 2.Qc6#
      • 1...Sd7
        • 2.Qg6#
      • 1...Sa8
        • 2.Qa4#
        • 2.Qc6#
      • 1...Sc8
        • 2.Qa4#
        • 2.Qc6#
      • 1...Kd7!
    • 1.Qb3?
      • 1...Sa4
        • 2.Qxa4#
        • 2.Qb5#
      • 1...Sc4
        • 2.Qa4#
        • 2.Qb5#
      • 1...Sd5
        • 2.Qa4#
        • 2.Qb5#
      • 1...Sd7
        • 2.Qf7#
      • 1...Sa8
        • 2.Qa4#
        • 2.Qb5#
      • 1...Sc8
        • 2.Qa4#
        • 2.Qb5#
      • 1...Kd7!
    • 1.Qg4?
      • 1...Sa4
        • 2.Qxa4#
      • 1...Sd5
        • 2.Qa4#
      • 1...Sd7
        • 2.Qh5#
        • 2.Qg6#
      • 1...Sa8
        • 2.Qa4#
      • 1...Sc8
        • 2.Qa4#
      • 1...Sc4!
    • 1.Qb1?
      • 1...Sc4
        • 2.Qb5#
      • 1...Sa4
        • 2.Qb5#
      • 1...Sd5
        • 2.Qb5#
      • 1...Sd7
        • 2.Qg6#
      • 1...Sa8
        • 2.Qb5#
      • 1...Sc8
        • 2.Qb5#
      • 1...Kd7!
    • 1.Qd3?
      • 1...Sd5
        • 2.Qb5#
      • 1...Sa4
        • 2.Qb5#
      • 1...Sd7
        • 2.Qg6#
      • 1...Sa8
        • 2.Qb5#
      • 1...Sc8
        • 2.Qb5#
      • 1...Sc4!
    • 1.Qd5?
      • 1...Sc4
        • 2.Qc6#
        • 2.Qb5#
      • 1...Sa4
        • 2.Qc6#
        • 2.Qb5#
      • 1...Sd7
        • 2.Qf7#
        • 2.Qh5#
      • 1...Sa8
        • 2.Qc6#
        • 2.Qb5#
      • 1...Sc8
        • 2.Qc6#
        • 2.Qb5#
      • 1...Sxd5!
  • Keys
    • 1.Qd6!
      • 1...Sc4
        • 2.Qc6#
      • 1...Sa4
        • 2.Qc6#
      • 1...Sd5
        • 2.Qc6#
      • 1...Sd7
        • 2.Qg6#
      • 1...Sa8
        • 2.Qc6#
      • 1...Sc8
        • 2.Qc6#

Anticipated by 238129(1974)

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 6
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::QAB(A),XS(a)
    • S(a);N_GUARD::QAB(A)
    • S(a);SBLOCK::QAB(A)
  • Tries
    • Try
      • Q(A);
      • Vars
        • S(a);N_GUARD::QAB(A)
        • S(a);SBLOCK::QAB(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • S(a);SBLOCK::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • S(a);N_GUARD::QAB(A),XS(a)
        • S(a);N_GUARD::QAB(A)
      • Refutation
        • S(a);
    • Try
      • Q(A);
      • Vars
        • S(a);N_GUARD::QAB(A)
        • S(a);SBLOCK::QAB(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • S(a);N_GUARD::QAB(A)
        • S(a);SBLOCK::QAB(A)
      • Refutation
        • S(a);
    • Try
      • Q(A);
      • Refutation
        • S(a);XQ(A)
  • Actual
    • Q(A);
    • Vars
      • S(a);N_GUARD::QAB(A)
      • S(a);SBLOCK::QAB(A)
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