MESON Chess Problem Database

Problem Display
PID: 244760 (3n4/6Q1/qp1N2K1/3pp1N1/1P1k2p1/3pn2b/1P6/4b1B1 w - - 0 1)

Dombrovskis, Alfreds A

Shakhmaty (Riga), 1959

3n4/6Q1/qp1N2K1/3pp1N1/1P1k2p1/3pn2b/1P6/4b1B1

#2

7 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qc4
      • 2.Sf5#
    • 1...Sc6
      • 2.Se6#
    • 1...Se6
      • 2.Sxe6#
    • 1...Sb7
      • 2.Se6#
    • 1...Sf7
      • 2.Se6#
    • 1...g3
      • 2.Sf3#
  • Keys
    • 1.Qc7!
      • threat
        • 2.Sf5#
      • 1...d2
        • 2.Qc3#
      • 1...Qc8
        • 2.Sb5#
      • 1...Bf2
        • 2.Qc3#
      • 1...Sc6
        • 2.Se6#
      • 1...g3
        • 2.Sf3#
      • 1...b5
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • Q(i);SBLOCK::S(E)
    • S(k);N_GUARD::S(D)
    • S(k);N_GUARD::S(D),XS(k)
    • P(f);N_GUARD::S(D)
  • Actual
    • Q(G);N_PINP(h)
    • Threat
      • S(E)
    • Vars
      • P(b);S_CUTB(a)::QAB1(G)
      • Q(i);N_GUARD::S(E)
      • B(a);N_GUARD,N_SPINS(c)::QAB1(G)
      • S(k);N_GUARD::S(D)
      • P(f);N_GUARD::S(D)
      • P(j);N_GUARD,P_PINS(E)::QAB1(G)
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