MESON Chess Problem Database

Problem Display
PID: 24319 (8/8/8/8/8/3n1N2/8/3Q1K1k w - - 0 1)

Chepizhni, Viktor Ivanovich

Poland, 1987

8/8/8/8/8/3n1N2/8/3Q1K1k

#2

3 + 2

3296 Shakhmatny zadachi miniaturi 1987

SOLUTION

  • SOUND
  • Sets
    • 1...Sc1
      • 2.Kf2#
    • 1...Sf2
      • 2.Kxf2#
    • 1...Sb4
      • 2.Kf2#
    • 1...Sf4
      • 2.Kf2#
    • 1...Sc5
      • 2.Kf2#
    • 1...Se5
      • 2.Kf2#
  • Tries
    • 1.Qc2?
      • threat
        • 2.Qg2#
        • 2.Qh2#
      • 1...Se1
        • 2.Qh7#
        • 2.Qh2#
      • 1...Sf4
        • 2.Qh2#
      • 1...Sf2!
    • 1.Qe2?
      • threat
        • 2.Qg2#
        • 2.Qh2#
      • 1...Se1
        • 2.Qh2#
      • 1...Sf4
        • 2.Qh2#
      • 1...Sf2!
    • 1.Qa1?
      • threat
        • 2.Qh8#
      • 1...Sf2
        • 2.Kxf2#
      • 1...Sf4
        • 2.Kf2#
      • 1...Se5
        • 2.Kf2#
      • 1...Sb2!
    • 1.Qc1?
      • threat
        • 2.Qh6#
      • 1...Sf2
        • 2.Kxf2#
      • 1...Sf4
        • 2.Kf2#
      • 1...Sxc1!
    • 1.Qe1?
      • threat
        • 2.Qh4#
      • 1...Sf2
        • 2.Kxf2#
      • 1...Sf4
        • 2.Kf2#
      • 1...Sxe1!
    • 1.Qd2?
      • threat
        • 2.Qh6#
        • 2.Qg2#
        • 2.Qh2#
      • 1...Se1
        • 2.Qh6#
        • 2.Qh2#
      • 1...Sf4
        • 2.Qh2#
      • 1...Sf2!
  • Keys
    • 1.Qb1!
      • 1...Sf2
        • 2.Kxf2#
      • 1...Sc1
        • 2.Qh7#
      • 1...Se1
        • 2.Qh7#
      • 1...Sb2
        • 2.Qh7#
      • 1...Sb4
        • 2.Kf2#
        • 2.Qh7#
      • 1...Sf4
        • 2.Kf2#
      • 1...Sc5
        • 2.Kf2#
        • 2.Qh7#
      • 1...Se5
        • 2.Kf2#
        • 2.Qh7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • S(b);::QAR(A)+K(B)
    • S(b);::QAR(A)+K(B),XS(b)
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • S(b);::QAR1(A)
      • Refutation
        • S(b);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • S(b);::QAR1(A)
      • Refutation
        • S(b);
    • Try
      • Q(A);
      • Threat
        • QAB(A)
      • Vars
        • S(b);::QAR(A)+K(B),XS(b)
        • S(b);::QAR(A)+K(B)
      • Refutation
        • S(b);
    • Try
      • Q(A);
      • Threat
        • QAR(A)
      • Vars
        • S(b);::QAR(A)+K(B),XS(b)
        • S(b);::QAR(A)+K(B)
      • Refutation
        • S(b);XQ(A)
    • Try
      • Q(A);
      • Threat
        • QAR(A)
      • Vars
        • S(b);::QAR(A)+K(B),XS(b)
        • S(b);::QAR(A)+K(B)
      • Refutation
        • S(b);XQ(A)
    • Try
      • Q(A);
      • Threat
        • DUALS(3)
      • Vars
        • S(b);::QAR1(A)
      • Refutation
        • S(b);
  • Actual
    • Q(A);
    • Vars
      • S(b);::QAR(A)+K(B),XS(b)
      • S(b);OGATE::QAR(A)
      • S(b);::QAR(A)+K(B)
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