MESON Chess Problem Database

Problem Display
PID: 240511 (8/k1K5/p3b1Q1/8/2n5/8/6B1/8 w - - 0 1)

Pilchenko, Viacheslav Karlovich

Problem-Forum, 2000

8/k1K5/p3b1Q1/8/2n5/8/6B1/8

#2

3 + 4

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qe4?
      • threat
        • 2.Qb7#
        • 2.Qa8#
      • 1...Bc8
        • 2.Qa8#
      • 1...Sa5
        • 2.Qa8#
        • 2.Qe3#
        • 2.Qd4#
      • 1...Sb6
        • 2.Qb7#
      • 1...Sd6
        • 2.Qa8#
        • 2.Qe3#
        • 2.Qd4#
      • 1...Bd5!
    • 1.Qe8?
      • threat
        • 2.Qa8#
        • 2.Qb8#
      • 1...a5
        • 2.Qa8#
      • 1...Bd5
        • 2.Qb8#
      • 1...Sb6
        • 2.Qb8#
      • 1...Bc8!
    • 1.Qxe6?
      • 1...Sb2
        • 2.Qe3#
        • 2.Qb6#
      • 1...Sd2
        • 2.Qe3#
        • 2.Qb6#
      • 1...Sa3
        • 2.Qe3#
        • 2.Qb6#
      • 1...Se3
        • 2.Qxe3#
        • 2.Qb6#
      • 1...Sa5
        • 2.Qe3#
        • 2.Qb6#
      • 1...Se5
        • 2.Qb6#
      • 1...Sb6
        • 2.Qxb6#
      • 1...Sd6
        • 2.Qe3#
      • 1...a5!
  • Keys
    • 1.Qb1!
      • threat
        • 2.Qb7#
        • 2.Qb8#
      • 1...Bd5
        • 2.Qb8#
      • 1...a5
        • 2.Qb7#
      • 1...Bc8
        • 2.Qb8#
      • 1...Sb2
        • 2.Qg1#
      • 1...Sa5
        • 2.Qg1#
        • 2.Qb6#
        • 2.Qb8#
      • 1...Sb6
        • 2.Qxb6#
      • 1...Sd6
        • 2.Qg1#
        • 2.Qb6#
        • 2.Qb8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • B(c);::QAR1(B)
        • S(a);::QAR1(B)
      • Refutation
        • B(c);
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::QAR1(B)
        • B(c);::QAB1(B)
        • S(a);::QAB1(B)
      • Refutation
        • B(c);
    • Try
      • Q(B);XB(c)
      • Vars
        • S(a);N_GUARD::QAB1(B)
        • S(a);N_GUARD::QAB1(B),XS(a)
        • S(a);N_GUARD::QAB(B)
      • Refutation
        • P(b);
  • Actual
    • Q(B);
    • Threat
      • DUALS(2)
    • Vars
      • B(c);::QAB1(B)
      • P(b);::QAR1(B)
      • S(a);N_GUARD::QAB(B)
      • S(a);N_GUARD::QAB1(B),XS(a)
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