MESON Chess Problem Database

Problem Display
PID: 222239 (8/8/1b4B1/8/2p5/1N4Q1/k2N2K1/q1B5 w - - 0 1)

Caplin, Aleksandr Borisovich

Sachova skladba, 1988

8/8/1b4B1/8/2p5/1N4Q1/k2N2K1/q1B5

#2

6 + 4

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qc3
      • 2.Bb1#
    • 1...Qd4
      • 2.Bb1#
    • 1...Qe5
      • 2.Bb1#
    • 1...Qf6
      • 2.Bb1#
    • 1...Qg7
      • 2.Bb1#
    • 1...Qh8
      • 2.Bb1#
    • 1...Qb1
      • 2.Bxb1#
    • 1...cxb3
      • 2.Qxb3#
  • Keys
    • 1.Qc3!
      • threat
        • 2.Qxa1#
      • 1...Qxc3
        • 2.Bb1#
      • 1...Qxc1
        • 2.Sxc1#
      • 1...cxb3
        • 2.Qxb3#
      • 1...Qb2
        • 2.Qxb2#
      • 1...Qb1
        • 2.Bxb1#
      • 1...Bd4
        • 2.Qa5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • Q(a);N_GUARD::B(F)
    • Q(a);N_GUARD::B(F),XQ(a)
    • P(c);OGATE,XS(D)::QAB1(E),XP(c)
  • Actual
    • Q(E);
    • Threat
      • QAR1(E),XQ(a)
    • Vars
      • Q(a);N_GUARD,XQ(E)::B(F)
      • Q(a);XB(A)::S(D),XQ(a)
      • P(c);OGATE,XS(D)::QAB1(E),XP(c)
      • Q(a);N_GUARD,P_PINS(B)::QAR1(E),XQ(a)
      • Q(a);N_GUARD::B(F),XQ(a)
      • B(d);N_GUARD::QAR(E)
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