MESON Chess Problem Database

Problem Display
PID: 181176 (8/4Q3/8/N2k3K/1r4p1/2p4N/3P3p/1R4bq w - - 0 1)

Gold, Zsigmund

American Chess Bulletin, 1904

8/4Q3/8/N2k3K/1r4p1/2p4N/3P3p/1R4bq

#2

6 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Rb5#
    • 1...Bd4
      • 2.Sf4#
  • Tries
    • 1.Sf4+?
      • 1...Kd4
        • 2.Rxb4#
      • 1...Rxf4!
  • Keys
    • 1.d4!
      • threat
        • 2.Qe5#
      • 1...Kxd4
        • 2.Rd1#
      • 1...Rxd4
        • 2.Rb5#
      • 1...Bxd4
        • 2.Sf4#
      • 1...Qe4
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(e);OGATE,SBLOCK::R(A)
    • B(a);SBLOCK,S_CUTR(e)::S(C)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(g);P-FLIGHT::R(A),XR(e)
      • Refutation
        • R(e);XS(C)
  • Actual
    • P(B);
    • Threat
      • QAR1(F)
    • Vars
      • K(g);OGATEB,P-FLIGHT,XP(B)::R(A)
      • R(e);OGATE,SBLOCK,XP(B)::R(A)
      • B(a);SBLOCK,XP(B)::S(C)
      • Q(b);SBLOCK::QAR2(F)
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