MESON Chess Problem Database

Problem Display
PID: 52873 (1Kb5/1p6/6N1/2R3np/3r2k1/1q6/6P1/4QN1r w - - 0 1)

Klar, Eugene

1st Prize, La Bataille, 1948

1Kb5/1p6/6N1/2R3np/3r2k1/1q6/6P1/4QN1r

#2

6 + 8

785 Het Belgisch Schaakbord (L'Echiquier Belge) 1948

SOLUTION

  • SOUND
  • Sets
    • 1...Qd1
      • 2.Se3#
      • 2.Qg3#
    • 1...Qa2
      • 2.Se3#
      • 2.Qg3#
    • 1...Qc2
      • 2.Se3#
      • 2.Qg3#
    • 1...Qa4
      • 2.Se3#
      • 2.Qg3#
    • 1...Qc4
      • 2.Se3#
      • 2.Qg3#
    • 1...Qd5
      • 2.Se3#
    • 1...Qe6
      • 2.Qg3#
    • 1...Qf7
      • 2.Se3#
      • 2.Qg3#
    • 1...Qg8
      • 2.Se3#
      • 2.Qg3#
    • 1...Qb1
      • 2.Se3#
      • 2.Qg3#
    • 1...Qb2
      • 2.Se3#
      • 2.Qg3#
    • 1...Qe3
      • 2.Sxe3#
    • 1...Qg3+
      • 2.Qxg3#
    • 1...Qb4
      • 2.Se3#
      • 2.Qg3#
    • 1...Qb5
      • 2.Se3#
      • 2.Qg3#
    • 1...Qb6
      • 2.Se3#
      • 2.Qg3#
    • 1...Rxf1
      • 2.Qh4#
    • 1...Rg1
      • 2.Sh2#
      • 2.Qh4#
    • 1...Rh2
      • 2.Sxh2#
    • 1...Rh4
      • 2.Qxh4#
    • 1...Sf3
      • 2.Qg3#
    • 1...Sh3
      • 2.Qh4#
  • Keys
    • 1.Qe5!
      • threat
        • 2.Qxg5#
      • 1...Qd5
        • 2.Se3#
      • 1...Qe3
        • 2.Sxe3#
      • 1...Qg3
        • 2.Qxg3#
      • 1...Rd5
        • 2.Qf4#
      • 1...Bf5
        • 2.Qxf5#
      • 1...Sf3
        • 2.Qg3#
      • 1...Sh3
        • 2.Qxh5#
      • 1...Se4
        • 2.Qf4#
      • 1...Se6
        • 2.Qf5#
      • 1...Sf7
        • 2.Qxd4#
      • 1...Sh7
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 4
  • Sets
    • Q(b);N_GUARD::S(B)
    • Q(b);N_GUARD::QAR1(A)
    • Q(b);N_GUARD::S(B),XQ(b)
    • Q(b);CHECK,N_GUARD::QAR1(A),XQ(b)
    • R(a);N_GUARD,XS(B)::QAR1(A)
    • R(a);N_GUARD::S(B),XR(a)
    • R(a);N_GUARD::QAR1(A),XR(a)
    • S(e);S_CUTQ(b)::QAR1(A)
    • S(e);S_CUTR(a)::QAR1(A)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A),XS(e)
    • Vars
      • Q(b);N_GUARD::S(B)
      • Q(b);N_GUARD::S(B),XQ(b)
      • Q(b);N_GUARD,P_PINQ(A)::QAR1(A),XQ(b)
      • R(c);N_GUARD::QAR1(A)
      • B(h);N_GUARD::QAB1(A),XB(h)
      • S(e);S_CUTQ(b)::QAR1(A)
      • S(e);OGATE::QAB1(A),XP(f)
      • S(e);S_CUTR(c)::QAR1(A)
      • S(e);S_CUTB(h)::QAB1(A)
      • S(e);N_GUARD::QAR(A),XR(c)
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