MESON Chess Problem Database

Problem Display
PID: 120714 (4b1B1/1p6/3p2r1/2pPk1p1/1r1N1R1N/5P2/3B1K2/8 w - - 0 1)

Schachter, N

Polski Zadaniowiec, 1929

4b1B1/1p6/3p2r1/2pPk1p1/1r1N1R1N/5P2/3B1K2/8

#2

8 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd4
      • 2.Rf5#
    • 1...Rf6
      • 2.Re4#
    • 1...Ba4
      • 2.Sxg6#
    • 1...Bb5
      • 2.Sxg6#
    • 1...Bc6
      • 2.Sxg6#
    • 1...Bd7
      • 2.Sxg6#
    • 1...cxd4
      • 2.Rf5#
  • Tries
    • 1.Sc6+?
      • 1...Bxc6
        • 2.Sxg6#
      • 1...bxc6!
  • Keys
    • 1.Bc3!
      • threat
        • 2.Rf5#
      • 1...Rb2+
        • 2.Se2#
      • 1...Kxf4
        • 2.Se2#
      • 1...gxf4
        • 2.Sc6#
      • 1...Rf6
        • 2.Re4#
      • 1...Bd7
        • 2.Sxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • R(a);SBLOCK,XS(D)::R1(E)
    • R(f);SBLOCK::R1(E)
    • B(h);N_GUARD::S(F),XR(f)
    • P(b);SBLOCK,XS(D)::R1(E)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • B(h);XS(D)::S(F),XR(f)
      • Refutation
        • P(g);XS(D)
  • Actual
    • B(A);
    • Threat
      • R1(E)
    • Vars
      • R(a);CHECK,N_GUARD::B(A)+S(D)
      • K(c);S_FLIGHT,XR(E)::S(D)
      • P(d);SBLOCK,XR(E)::B(A)+S(D),DCHECK
      • R(f);SBLOCK::R1(E)
      • B(h);N_GUARD::S(F),XR(f)
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