MESON Chess Problem Database

Problem Display
PID: 92646 (6Rb/2B2p1b/K2Q2q1/1p5R/pr4k1/6N1/4N1B1/6n1 w - - 0 1)

Boros, Sandor

Schaan Tijdschrift vd. Nederl Schaakb, 1930

6Rb/2B2p1b/K2Q2q1/1p5R/pr4k1/6N1/4N1B1/6n1

#2

8 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qg5
      • 2.Rgxg5#
    • 1...Bf6
      • 2.Qd7#
    • 1...Sf3
      • 2.Bh3#
    • 1...f6
      • 2.Qxb4#
  • Tries
    • 1.Rxg6+?
      • 1...fxg6
        • 2.Qe6#
        • 2.Qd7#
      • 1...Bxg6!
    • 1.Qf6?
      • threat
        • 2.Rh4#
      • 1...Qg5
        • 2.Rgxg5#
        • 2.Qxg5#
      • 1...Sf3
        • 2.Bxf3#
        • 2.Bh3#
      • 1...Bxf6!
  • Keys
    • 1.Bd8!
      • threat
        • 2.Rh4#
      • 1...Qg5
        • 2.Rgxg5#
      • 1...Bf6
        • 2.Qd7#
      • 1...Sf3
        • 2.Bh3#
      • 1...f6
        • 2.Qxb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • Q(f);N_PINQ(F),OGATE::R1(H),XQ(f)
    • B(i);N_PINQ(F)::QAB(F)
    • S(a);N_GUARD,SBLOCK::B(B)
    • P(g);N_PINQ(F)::QAR(F),XR(c)
  • Tries
    • Try
      • R(H);CHECK,N_SPINQ(F),XQ(f)
      • Refutation
        • B(h);XR(H)
    • Try
      • Q(F);
      • Threat
        • R1(D)
      • Refutation
        • B(i);XQ(F)
  • Actual
    • B(G);
    • Threat
      • R1(D)
    • Vars
      • Q(f);N_PINQ(F),OGATE::R1(H),XQ(f)
      • B(i);N_PINQ(F)::QAB(F)
      • S(a);N_GUARD,SBLOCK::B(B)
      • P(g);N_PINQ(F)::QAR(F),XR(c)
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Developed and maintained by Brian Stephenson.
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