MESON Chess Problem Database

Problem Display
PID: 180203 (8/2N5/1p1B4/8/r2k4/npN4Q/1b2K3/4n3 w - - 0 1)

Schlechter, Carl

Magyar Sakkvilag, 1911

8/2N5/1p1B4/8/r2k4/npN4Q/1b2K3/4n3

#2

5 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rc4
      • 2.Se6#
      • 2.Qe3#
      • 2.Qh8#
    • 1...Bxc3
      • 2.Qg4#
      • 2.Qh4#
    • 1...Sec2
      • 2.Qd3#
    • 1...Sg2
      • 2.Qd3#
    • 1...Sd3
      • 2.Qxd3#
    • 1...Sc4
      • 2.S7b5#
      • 2.Se6#
  • Tries
    • 1.S3b5+?
      • 1...Kc4
        • 2.Qe6#
      • 1...Ke4
        • 2.Qg4#
        • 2.Qh7#
      • 1...Sxb5!
    • 1.S7b5+?
      • 1...Kc4
        • 2.Qg4#
        • 2.Qe6#
        • 2.Qc8#
        • 2.Qh4#
      • 1...Sxb5!
  • Keys
    • 1.Qc8!
      • threat
        • 2.Se6#
      • 1...Kxc3
        • 2.Sb5#
      • 1...Kc4
        • 2.S7b5#
        • 2.Se6#
      • 1...Bxc3
        • 2.Qg4#
      • 1...Rc4
        • 2.Qh8#
      • 1...Sc4
        • 2.S7b5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • S(a);N_GUARD::QAR1(C)
    • S(a);N_GUARD::QAR1(C),XS(a)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(f);P-FLIGHT::QAB(C)
      • Refutation
        • S(c);XS(B)
    • Try
      • S(E);CHECK
      • Refutation
        • S(c);XS(E)
  • Actual
    • Q(C);
    • Threat
      • S(E)
    • Vars
      • K(f);S_FLIGHT,XS(B)::QAR(C)+S(E),DCHECK
      • B(b);SBLOCK,XS(B)::QAR(C)
      • R(e);SBLOCK::QAB(C)
      • S(c);N_GUARD::S(E)
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Developed and maintained by Brian Stephenson.
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