MESON Chess Problem Database

Problem Display
PID: 87846 (8/8/k7/N1K5/2n5/8/Q7/8 w - - 0 1)

Schilnikov, Vladimir Evgenievich

Problemist Pribuzhya, 1992

8/8/k7/N1K5/2n5/8/Q7/8

#2

3 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qb1?
      • 1...Kxa5
        • 2.Qb5#
      • 1...Ka7
        • 2.Qb7#
      • 1...Sxa5
        • 2.Qb6#
      • 1...Sa3
        • 2.Qb6#
      • 1...Sd2
        • 2.Qb6#
      • 1...Se3
        • 2.Qb6#
      • 1...Se5
        • 2.Qb6#
      • 1...Sb6
        • 2.Qxb6#
      • 1...Sd6
        • 2.Qb6#
      • 1...Sb2!
    • 1.Qxc4+?
      • 1...Kxa5
        • 2.Qa2#
        • 2.Qb5#
      • 1...Ka7!
    • 1.Qb2?
      • 1...Kxa5
        • 2.Qb5#
      • 1...Ka7
        • 2.Qb7#
      • 1...Sxa5
        • 2.Qb6#
      • 1...Sa3
        • 2.Qb6#
      • 1...Sd2
        • 2.Qb6#
      • 1...Se3
        • 2.Qb6#
      • 1...Se5
        • 2.Qb6#
      • 1...Sb6
        • 2.Qxb6#
      • 1...Sd6
        • 2.Qb6#
      • 1...Sxb2!
    • 1.Qg2?
      • threat
        • 2.Qa8#
      • 1...Kxa5
        • 2.Qa8#
      • 1...Ka7
        • 2.Qb7#
      • 1...Sb6!
  • Keys
    • 1.Qb3!
      • 1...Kxa5
        • 2.Qb5#
      • 1...Ka7
        • 2.Qb7#
      • 1...Sxa5
        • 2.Qb6#
      • 1...Sa3
        • 2.Qb6#
      • 1...Sb2
        • 2.Qb6#
      • 1...Sd2
        • 2.Qb6#
      • 1...Se3
        • 2.Qb6#
      • 1...Se5
        • 2.Qb6#
      • 1...Sb6
        • 2.Qxb6#
      • 1...Sd6
        • 2.Qb6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Vars
        • K(b);P-FLIGHT,XS(B)::QAR1(A)
        • K(b);P-FLIGHT::QAR1(A)
        • S(a);N_GUARD,XS(B)::QAR1(A)
        • S(a);N_GUARD::QAR1(A)
        • S(a);N_GUARD::QAR1(A),XS(a)
      • Refutation
        • S(a);
    • Try
      • Q(A);CHECK,XS(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);P-FLIGHT,XS(B)::QAR1(A)
        • K(b);P-FLIGHT::QAR1(A)
        • S(a);N_GUARD,XS(B)::QAR1(A)
        • S(a);N_GUARD::QAR1(A)
        • S(a);N_GUARD::QAR1(A),XS(a)
      • Refutation
        • S(a);XQ(A)
    • Try
      • Q(A);
      • Threat
        • QAR2(A)
      • Vars
        • K(b);P-FLIGHT,XS(B)::QAR(A)
        • K(b);P-FLIGHT::QAR1(A)
      • Refutation
        • S(a);
  • Actual
    • Q(A);
    • Vars
      • K(b);P-FLIGHT,XS(B)::QAR1(A)
      • K(b);P-FLIGHT::QAR1(A)
      • S(a);N_GUARD,XS(B)::QAR1(A)
      • S(a);N_GUARD::QAR1(A)
      • S(a);N_GUARD::QAR1(A),XS(a)
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