MESON Chess Problem Database

Problem Display
PID: 136736 (1q6/1pRp4/1R1PkpQn/1N1b4/2p1P1n1/2B5/2N5/1K6 w - - 0 1)

Subotic, Miroslav

Probleemblad, 2010

1q6/1pRp4/1R1PkpQn/1N1b4/2p1P1n1/2B5/2N5/1K6

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qa7
      • 2.Qe8#
    • 1...Qxc7
      • 2.Sxc7#
      • 2.Qe8#
    • 1...Qe8
      • 2.Qxe8#
    • 1...Sf2
      • 2.Qxf6#
    • 1...Sh2
      • 2.Qxf6#
    • 1...Se3
      • 2.Qxf6#
    • 1...Se5
      • 2.Scd4#
      • 2.Sbd4#
    • 1...Sf5
      • 2.exf5#
    • 1...Sf7
      • 2.Qf5#
  • Tries
    • 1.Qh5?
      • threat
        • 2.Scd4#
        • 2.Sbd4#
        • 2.Qxd5#
        • 2.exd5#
      • 1...Bxe4
        • 2.Sd4#
      • 1...Bc6
        • 2.Scd4#
      • 1...Se3
        • 2.Scd4#
        • 2.Sbd4#
      • 1...Se5
        • 2.Scd4#
        • 2.Sbd4#
      • 1...Sf5
        • 2.exf5#
      • 1...f5!
  • Keys
    • 1.Rc5!
      • threat
        • 2.exd5#
      • 1...Qxd6
        • 2.Qe8#
      • 1...Bxe4
        • 2.Sd4#
      • 1...Bc6
        • 2.Scd4#
      • 1...Se3
        • 2.Qxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • Q(i);N_GUARD::QAR2(H)
    • Q(i);N_GUARD::QAR2(H),XQ(i)
    • S(b);N_GUARD::QAR1(H),XP(e)
    • S(f);OGATE::P(D),XS(f)
    • S(f);N_GUARD,SBLOCK::QAB1(H)
  • Tries
    • Try
      • Q(H);N_PINP(e)
      • Threat
        • DUALS(4)
      • Vars
        • B(c);P_PINS(B),XP(D)::S(E)
        • B(c);::S(B)
        • S(f);OGATE::P(D),XS(f)
      • Refutation
        • P(e);
  • Actual
    • R(I);
    • Threat
      • P(D),XB(c)
    • Vars
      • Q(i);N_GUARD,P_SPINQ(i),XP(G)::QAR2(H)
      • B(c);P_PINS(B),XP(D)::S(E)
      • B(c);::S(B)
      • S(b);N_GUARD::QAR1(H),XP(e)
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