MESON Chess Problem Database

Problem Display
PID: 41909 (b1B3Q1/3pp3/7q/5p2/2P2R2/1Ppk2NN/8/2K2nB1 w - - 0 1)

Bonivento, Oscar

La Settimana Enigmistica, 1937

b1B3Q1/3pp3/7q/5p2/2P2R2/1Ppk2NN/8/2K2nB1

#2

9 + 8

4436 Problemi Opera omnia 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf4+
      • 2.Sxf4#
    • 1...Qf8
      • 2.Rd4#
    • 1...Qxh3
      • 2.Rd4#
    • 1...Qh5
      • 2.Rd4#
    • 1...Qa6
      • 2.Rd4#
    • 1...Qc6
      • 2.Rd4#
    • 1...Qe6
      • 2.Rd4#
    • 1...Qg6
      • 2.Rd4#
    • 1...Qh7
      • 2.Rd4#
    • 1...Bd5
      • 2.Qxd5#
    • 1...Sd2
      • 2.Rd4#
    • 1...Se3
      • 2.Sf2#
    • 1...d5
      • 2.Bxf5#
  • Keys
    • 1.c5!
      • threat
        • 2.Qc4#
      • 1...Qxf4+
        • 2.Sxf4#
      • 1...Qa6
        • 2.Bxa6#
        • 2.Rd4#
      • 1...Qe6
        • 2.Rd4#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Sd2
        • 2.Rd4#
      • 1...Se3
        • 2.Sf2#
      • 1...d5
        • 2.Bxf5#
      • 1...e6
        • 2.Ba6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • Q(e);CHECK,XR(G)::S(E),XQ(e)
    • Q(e);N_PINR(G)::R1(G)
    • Q(e);N_PINR(G),XS(E)::R1(G)
    • B(h);N_GUARD::QAR2(I),XB(h)
    • S(a);N_PINR(G)::R1(G)
    • S(a);N_PINR(G),SBLOCK::S(E)
    • P(f);OGATE::B(H),XP(d)
  • Actual
    • P(F);
    • Threat
      • QAB1(I)
    • Vars
      • Q(e);CHECK,XR(G)::S(E),XQ(e)
      • Q(e);N_PINR(G)::R1(G)
      • B(h);N_GUARD::QAR2(I),XB(h)
      • S(a);N_PINR(G)::R1(G)
      • S(a);N_PINR(G),SBLOCK::S(E)
      • P(f);OGATE::B(H),XP(d)
      • P(g);S_CUTQ(e)::B(H)
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Developed and maintained by Brian Stephenson.
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