MESON Chess Problem Database

Problem Display
PID: 205468 (8/1K2P1Q1/1pB2n2/k1Bn4/8/8/8/8 w - - 0 1)

Abdullayev, Suleyman

ChessStar, 2017

8/1K2P1Q1/1pB2n2/k1Bn4/8/8/8/8

#2

5 + 4

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sb4
      • 2.Bxb6#
    • 1...Se4
      • 2.Qa1#
    • 1...Sg4
      • 2.Qa1#
    • 1...Sh5
      • 2.Qa1#
    • 1...Sd7
      • 2.Qa1#
    • 1...Sh7
      • 2.Qa1#
    • 1...Se8
      • 2.Qa1#
    • 1...Sg8
      • 2.Qa1#
  • Tries
    • 1.Qg1?
      • threat
        • 2.Qa1#
      • 1...bxc5
        • 2.Qxc5#
      • 1...Sb4
        • 2.Bxb6#
      • 1...Sc3!
    • 1.e8Q?
      • threat
        • 2.Qa8#
      • 1...Sxe8
        • 2.Qa1#
      • 1...Sc7
        • 2.Qe1#
      • 1...Sb4
        • 2.Bxb6#
      • 1...bxc5!
  • Keys
    • 1.Qg3!
      • threat
        • 2.Qa3#
      • 1...Sc3
        • 2.Qxc3#
      • 1...Se3
        • 2.Qe1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 8
  • Sets
    • S(b);N_GUARD,SBLOCK::B(A),XP(c)
    • S(d);OGATE::QAR(E)
    • S(d);OGATE,SBLOCK::QAR(E)
  • Tries
    • Try
      • Q(E);
      • Threat
        • QAR(E)
      • Vars
        • P(c);OGATE,XB(A)::QAR2(E),XP(c)
        • S(b);N_GUARD,SBLOCK::B(A),XP(c)
      • Refutation
        • S(b);
    • Try
      • P(D);
      • Threat
        • QAR(D)
      • Vars
        • S(d);OGATE,XQ(D)::QAR(E)
        • S(b);N_GUARD::QAB(D)
        • S(b);N_GUARD,SBLOCK::B(A),XP(c)
      • Refutation
        • P(c);XB(A)
  • Actual
    • Q(E);
    • Threat
      • QAR2(E)
    • Vars
      • S(b);N_GUARD::QAB(E),XS(b)
      • S(b);N_GUARD::QAB(E)
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