MESON Chess Problem Database

Problem Display
PID: 46914 (1b6/3p2r1/3k1p2/B2P2NR/1N1p4/1r6/2R3B1/4Q1K1 w - - 0 1)

Roosendaal, Jan C

Probleemblad, 2003

1b6/3p2r1/3k1p2/B2P2NR/1N1p4/1r6/2R3B1/4Q1K1

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb4
      • 2.Bxb4#
    • 1...Rg6
      • 2.Sf7#
    • 1...Rf7
      • 2.Sxf7#
    • 1...Rg8
      • 2.Sf7#
    • 1...Ba7
      • 2.Bc7#
    • 1...Bc7
      • 2.Bxc7#
  • Keys
    • 1.Sc6!
      • threat
        • 2.Se4#
      • 1...Rxg5
        • 2.Qe7#
      • 1...fxg5
        • 2.Qe5#
      • 1...dxc6
        • 2.Qe6#
      • 1...Rb6
        • 2.Qg3#
      • 1...Re3
        • 2.Qb4#
      • 1...Re7
        • 2.Qxe7#
      • 1...f5
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 6
  • Sets
    • R(a);OGATE,XS(E)::B(F),XR(a)
    • R(f);N_GUARD::S(H)
    • R(f);N_GUARD::S(H),XR(f)
    • B(g);N_GUARD::B(F)
    • B(g);N_GUARD::B(F),XB(g)
  • Actual
    • S(E);
    • Threat
      • S(H)
    • Vars
      • R(f);N_GUARD,P_PINB(D),XS(H)::QAB1(A)
      • P(d);N_GUARD,XS(H)::QAB1(A)
      • P(e);N_GUARD,XS(E)::QAR1(A)
      • R(a);N_GUARD::QAB(A)
      • R(f);N_GUARD::QAB1(A),XR(f)
      • P(d);N_GUARD::QAB1(A)
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