MESON Chess Problem Database

Problem Display
PID: 243635 (1KQ5/4p3/1B2B2n/R2b3p/r3k2r/3N1p2/qp1n1P2/3RN3 w - - 0 1)

Balcu, Silviu

Shakhmaty v SSSR, 1958

1KQ5/4p3/1B2B2n/R2b3p/r3k2r/3N1p2/qp1n1P2/3RN3

#2

9 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1
      • 2.Bxd5#
    • 1...Qa1
      • 2.Bxd5#
    • 1...Qa3
      • 2.Bxd5#
    • 1...Rc4
      • 2.Bxd5#
    • 1...Bb3
      • 2.Re5#
    • 1...Bc4
      • 2.Re5#
    • 1...Bc6
      • 2.Re5#
    • 1...Bxe6
      • 2.Re5#
    • 1...Bb7
      • 2.Re5#
    • 1...Ba8
      • 2.Re5#
    • 1...Sb3
      • 2.Bxd5#
    • 1...Sc4
      • 2.Bxd5#
    • 1...Sg4
      • 2.Bf5#
    • 1...Sf5
      • 2.Bxf5#
    • 1...Sf7
      • 2.Bf5#
    • 1...Sg8
      • 2.Bf5#
  • Tries
    • 1.Qc7?
      • threat
        • 2.Qe5#
      • 1...Sc4
        • 2.Sc5#
      • 1...Sg4
        • 2.Qf4#
      • 1...Sf7!
  • Keys
    • 1.Qh8!
      • threat
        • 2.Qe5#
      • 1...Sc4
        • 2.Qd4#
      • 1...Sg4
        • 2.Qh7#
      • 1...Sf7
        • 2.Qh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 0
    • REMOVED MATES = 13
  • Sets
    • Q(a);N_GUARD::B(G),XB(h)
    • R(e);S_CUTQ(a)::B(G),XB(h)
    • B(h);OGATE::R1(E)
    • B(h);OGATE,XB(G)::R1(E)
    • S(c);S_CUTQ(a)::B(G),XB(h)
    • S(j);N_GUARD::B(G)
    • S(j);N_GUARD::B(G),XS(j)
  • Tries
    • Try
      • Q(I);
      • Threat
        • QAR1(I)
      • Vars
        • S(c);::S(D)
        • S(j);S_CUTR(g)::QAR1(I)
      • Refutation
        • S(j);
  • Actual
    • Q(I);
    • Threat
      • QAR1(I)
    • Vars
      • S(c);S_CUTR(e)::QAR1(I)
      • S(j);N_GUARD::QAB(I)
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