MESON Chess Problem Database

Problem Display
PID: 93778 (1n3B2/1p5K/1Pkn3p/1p1N3r/1p2Q2r/1P1N1P1B/q1bR4/2R5 w - - 0 1)

Jancek, Jan

Sachove umeni (Ceskoslovensky sach), 1953

1n3B2/1p5K/1Pkn3p/1p1N3r/1p2Q2r/1P1N1P1B/q1bR4/2R5

#2

11 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sc4
      • 2.S3xb4#
    • 1...Sxe4
      • 2.S3xb4#
    • 1...Sf5
      • 2.Se5#
    • 1...Sf7
      • 2.S3xb4#
    • 1...Sc8
      • 2.S3xb4#
    • 1...Se8
      • 2.S3xb4#
  • Tries
    • 1.Rcxc2+?
      • 1...Sc4
        • 2.S3xb4#
        • 2.Qe6#
      • 1...Qxc2!
    • 1.Rdxc2+?
      • 1...Sc4
        • 2.S3xb4#
        • 2.Qe6#
      • 1...Qxc2!
    • 1.Qg6?
      • threat
        • 2.Qxd6#
      • 1...Kxd5
        • 2.Qxd6#
      • 1...Rxd5!
  • Keys
    • 1.Qe7!
      • threat
        • 2.Qxd6#
      • 1...Kxd5
        • 2.Qxd6#
      • 1...Rxd5
        • 2.Qc7#
      • 1...Sc4
        • 2.Qc5#
      • 1...Se4
        • 2.S3xb4#
      • 1...Sf5
        • 2.Se5#
      • 1...Sf7
        • 2.Qc5#
      • 1...Sc8
        • 2.Qc5#
      • 1...Se8
        • 2.Qc5#

There are these versions: 93782

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(h);N_SPINB(b)::S(D),XP(c)
    • S(h);XQ(G)::S(D),XP(c)
    • S(h);S_CUTR(f)::S(D)
    • S(h);::S(D),XP(c)
  • Tries
    • Try
      • R(A);CHECK,XB(b)
      • Refutation
        • Q(a);XR(A)
    • Try
      • R(B);CHECK,XB(b)
      • Refutation
        • Q(a);P_SPINQ(a),XR(B)
    • Try
      • Q(G);P_PINS(h)
      • Threat
        • QAR1(G),XS(h)
      • Vars
        • K(g);N_SPINB(b),N_SPINS(h),S_FLIGHT,XS(H)::QAR1(G),XS(h)
      • Refutation
        • R(f);XS(H)
  • Actual
    • Q(G);P_SPINS(D)
    • Threat
      • QAR1(G),XS(h)
    • Vars
      • K(g);N_SPINB(b),S_FLIGHT,XS(H)::QAR1(G),XS(h)
      • R(f);SBLOCK,XS(H)::QAR1(G)
      • S(h);N_SPINB(b),OGATE::QAR1(G)
      • S(h);N_PINS(D)::S(D),XP(c)
      • S(h);N_PINS(D)::S(D)
      • S(h);OGATE::QAR1(G)
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