MESON Chess Problem Database

Problem Display
PID: 274109 (2b5/1pQn4/3K4/Np6/p2kpp2/8/3PP3/b7 w - - 0 1)

Vladimirov, Evgeny

Mat, 1973

2b5/1pQn4/3K4/Np6/p2kpp2/8/3PP3/b7

#2

5 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bc3
      • 2.Qxc3#
    • 1...Sc5
      • 2.Qxc5#
      • 2.Qg7#
    • 1...Se5
      • 2.Qb6#
      • 2.Qc5#
    • 1...Sb6
      • 2.Qxb6#
      • 2.Qc5#
      • 2.Qg7#
    • 1...Sf6
      • 2.Qb6#
      • 2.Qc5#
    • 1...Sb8
      • 2.Qb6#
      • 2.Qc5#
      • 2.Qg7#
    • 1...Sf8
      • 2.Qb6#
      • 2.Qc5#
      • 2.Qg7#
    • 1...a3
      • 2.Sb3#
    • 1...b4
      • 2.Qc4#
  • Tries
    • 1.Qb6+?
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sxb6!
    • 1.Qc1?
      • threat
        • 2.Qxa1#
      • 1...Bb2
        • 2.Qxb2#
      • 1...Bc3
        • 2.Qxc3#
        • 2.dxc3#
      • 1...e3!
    • 1.Qc6?
      • threat
        • 2.Qd5#
      • 1...Sb6
        • 2.Qc5#
        • 2.Qxb6#
      • 1...Sf6
        • 2.Qc5#
        • 2.Qb6#
      • 1...bxc6!
    • 1.Qxb7?
      • threat
        • 2.Qd5#
      • 1...Sb6
        • 2.Qxb6#
        • 2.Qg7#
      • 1...Sf6
        • 2.Qb6#
        • 2.Qa7#
      • 1...Bxb7!
  • Keys
    • 1.Qc2!
      • 1...Bb2
        • 2.Qxb2#
      • 1...Bc3
        • 2.Qxc3#
      • 1...Sc5
        • 2.Qxc5#
      • 1...Se5
        • 2.Qc5#
      • 1...Sb6
        • 2.Qc5#
      • 1...Sf6
        • 2.Qc5#
      • 1...Sb8
        • 2.Qc5#
      • 1...Sf8
        • 2.Qc5#
      • 1...a3
        • 2.Sb3#
      • 1...e3
        • 2.Qd3#
      • 1...f3
        • 2.e3#
      • 1...b4
        • 2.Qc4#
      • 1...b6
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD::QAB1(E),XB(a)
    • P(b);N_GUARD::S(C)
    • P(f);N_GUARD::QAR1(E)
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • S(h);N_GUARD,P_SPINS(h)::QAB1(E),XS(h)
      • Refutation
        • S(h);XQ(E)
    • Try
      • Q(E);
      • Threat
        • QAB(E),XB(a)
      • Vars
        • B(a);N_GUARD::QAB(E),XB(a)
      • Refutation
        • P(d);
    • Try
      • Q(E);
      • Threat
        • QAR1(E)
      • Refutation
        • P(g);XQ(E)
    • Try
      • Q(E);XP(g)
      • Threat
        • QAR1(E)
      • Refutation
        • B(i);XQ(E)
  • Actual
    • Q(E);
    • Vars
      • B(a);N_GUARD::QAB(E),XB(a)
      • B(a);N_GUARD::QAB1(E),XB(a)
      • S(h);N_GUARD::QAB1(E),XS(h)
      • S(h);N_GUARD::QAB1(E)
      • P(b);N_GUARD::S(C)
      • P(d);N_GUARD::QAR1(E)
      • P(e);N_GUARD::P(B)
      • P(f);N_GUARD::QAR1(E)
      • P(g);N_GUARD::S(C)
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