MESON Chess Problem Database

Problem Display
PID: 10370 (K3Nk1n/1Q3P2/4PNp1/3p2n1/1p2pr2/b7/8/8 w - - 0 1)

Mikan, Ilja

Vpered, 1963

K3Nk1n/1Q3P2/4PNp1/3p2n1/1p2pr2/b7/8/8

#2

6 + 9

5505 Dobrodruzstvi 64 poli 1973

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Qxb4#
    • 1...Bb2
      • 2.Qxb4#
    • 1...Sf3
      • 2.Sh7#
    • 1...Sh3
      • 2.Sh7#
    • 1...Sxe6
      • 2.Sh7#
    • 1...Sgxf7
      • 2.e7#
    • 1...Sh7
      • 2.Sxh7#
    • 1...Shxf7
      • 2.e7#
  • Tries
    • 1.Qc7?
      • threat
        • 2.Qd6#
        • 2.Qc5#
      • 1...Sxe6
        • 2.Sh7#
      • 1...Sgxf7
        • 2.e7#
      • 1...Shxf7
        • 2.e7#
      • 1...b3!
    • 1.Qd7?
      • threat
        • 2.Qd6#
      • 1...Sxe6
        • 2.Sh7#
      • 1...Sgxf7
        • 2.e7#
      • 1...Shxf7
        • 2.e7#
      • 1...b3!
  • Keys
    • 1.Qa7!
      • threat
        • 2.Qc5#
      • 1...Sxe6
        • 2.Sh7#
      • 1...Sgxf7
        • 2.e7#
      • 1...Shxf7
        • 2.e7#
      • 1...b3
        • 2.Qxa3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • B(a);N_GUARD::QAB(C),XP(b)
    • S(f);N_GUARD::S(B)
    • S(f);N_GUARD,XP(A)::S(B)
    • S(f);SBLOCK,XP(D)::P(A)
    • S(f);N_GUARD::S(B),XS(f)
    • S(i);SBLOCK,XP(D)::P(A)
  • Tries
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • S(f);N_GUARD,XP(A)::S(B)
        • S(f);SBLOCK,XP(D)::P(A)
        • S(i);SBLOCK,XP(D)::P(A)
      • Refutation
        • P(b);
    • Try
      • Q(C);
      • Threat
        • QAB(C)
      • Vars
        • S(f);N_GUARD,XP(A)::S(B)
        • S(f);SBLOCK,XP(D)::P(A)
        • S(i);SBLOCK,XP(D)::P(A)
      • Refutation
        • P(b);
  • Actual
    • Q(C);
    • Threat
      • QAB(C)
    • Vars
      • S(f);N_GUARD,XP(A)::S(B)
      • S(f);SBLOCK,XP(D)::P(A)
      • S(i);SBLOCK,XP(D)::P(A)
      • P(b);OGATEB::QAB(C),XB(a)
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