MESON Chess Problem Database

Problem Display
PID: 144833 (5B1Q/5k1P/2p2N2/2Rp1B1b/1pr1pp2/1Kpr1p2/2Pp3b/3N1nqn w - - 0 1)

Battaglia, Emilio

L'Italia Scacchistica, 1997

5B1Q/5k1P/2p2N2/2Rp1B1b/1pr1pp2/1Kpr1p2/2Pp3b/3N1nqn

#2

9 + 16

145 StrateGems 1998

SOLUTION

  • SOUND
  • Sets
    • 1...Qf2
      • 2.Qg7#
    • 1...Qe3
      • 2.Qg7#
    • 1...Qd4
      • 2.Qg7#
    • 1...Qxc5
      • 2.Qg7#
    • 1...Qg7
      • 2.Qxg7#
    • 1...Qg8
      • 2.hxg8Q#
    • 1...Bg3
      • 2.Qg7#
    • 1...Bg4
      • 2.Qg7#
    • 1...Bg6
      • 2.Qg7#
    • 1...Sfg3
      • 2.Qg7#
    • 1...Shg3
      • 2.Qg7#
  • Tries
    • 1.Be6+?
      • 1...Kg6
        • 2.Qg7#
      • 1...Kxe6!
    • 1.Bd6?
      • threat
        • 2.Qf8#
      • 1...Qg8
        • 2.hxg8Q#
        • 2.hxg8B#
      • 1...Qg7!
    • 1.Bh6?
      • threat
        • 2.Qf8#
      • 1...Ke7
        • 2.Qf8#
      • 1...Qxc5
        • 2.Qg7#
      • 1...Qg7
        • 2.Qxg7#
      • 1...Qg8!
    • 1.Rb5?
      • threat
        • 2.Rb7#
      • 1...Qg7
        • 2.Qxg7#
      • 1...Qg8
        • 2.hxg8Q#
      • 1...Qc5
        • 2.Qg7#
      • 1...Qb6
        • 2.Qg7#
      • 1...Qa7
        • 2.Qg7#
      • 1...cxb5!
  • Keys
    • 1.Ra5!
      • 1...Qg7
        • 2.Qxg7#
      • 1...Qg8
        • 2.hxg8Q#
      • 1...Qg2
        • 2.Ra7#
      • 1...Qf2
        • 2.Qg7#
      • 1...Qe3
        • 2.Qg7#
      • 1...Qd4
        • 2.Qg7#
      • 1...Qc5
        • 2.Qg7#
      • 1...Qb6
        • 2.Qg7#
      • 1...Qa7
        • 2.Rxa7#
        • 2.Qg7#
      • 1...Qg3
        • 2.Ra7#
      • 1...Qg4
        • 2.Ra7#
      • 1...Qg5
        • 2.Ra7#
      • 1...Qg6
        • 2.Ra7#
      • 1...Re3
        • 2.Ra7#
      • 1...Rdd4
        • 2.Ra7#
      • 1...Rcd4
        • 2.Ra7#
      • 1...Rc5
        • 2.Ra7#
      • 1...Bg3
        • 2.Qg7#
      • 1...Bg4
        • 2.Qg7#
      • 1...Bg6
        • 2.Qg7#
      • 1...Se3
        • 2.Ra7#
      • 1...Sfg3
        • 2.Qg7#
      • 1...Sf2
        • 2.Ra7#
      • 1...Shg3
        • 2.Qg7#
      • 1...f2
        • 2.Ra7#
      • 1...e3
        • 2.Ra7#
      • 1...d4
        • 2.Ra7#
      • 1...c5
        • 2.Ra7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 16
    • REMOVED MATES = 0
  • Sets
    • Q(b);N_GUARD::QAR1(I)
    • Q(b);N_GUARD,XR(D)::QAR1(I)
    • Q(b);N_GUARD::QAR1(I),XQ(b)
    • Q(b);OGATE::PXQ(b)=Q
    • B(e);S_CUTQ(b)::QAR1(I)
    • B(n);S_CUTQ(b)::QAR1(I)
    • S(a);S_CUTQ(b)::QAR1(I)
    • S(c);S_CUTQ(b)::QAR1(I)
  • Tries
    • Try
      • B(E);CHECK
      • Vars
        • K(p);S_FLIGHT::QAR1(I)
      • Refutation
        • K(p);S_FLIGHT,XB(E)
    • Try
      • B(H);
      • Threat
        • QAR1(I)
      • Vars
        • Q(b);OGATE::PXQ(b)=Q
      • Refutation
        • Q(b);
    • Try
      • B(H);
      • Threat
        • QAR1(I)
      • Vars
        • K(p);P-FLIGHT::QAB1(I)
        • Q(b);N_GUARD,XR(D)::QAR1(I)
        • Q(b);N_GUARD::QAR1(I),XQ(b)
      • Refutation
        • Q(b);
    • Try
      • R(D);
      • Threat
        • R(D)
      • Vars
        • Q(b);N_GUARD::QAR1(I),XQ(b)
        • Q(b);OGATE::PXQ(b)=Q
        • Q(b);N_GUARD::QAR1(I)
      • Refutation
        • P(o);XR(D)
  • Actual
    • R(D);
    • Vars
      • Q(b);N_GUARD::QAR1(I),XQ(b)
      • Q(b);OGATE::PXQ(b)=Q
      • Q(b);N_GUARD::R(D)
      • Q(b);N_GUARD::QAR1(I)
      • R(g);S_CUTQ(b)::R(D)
      • R(j);S_CUTQ(b)::R(D)
      • B(e);S_CUTQ(b)::QAR1(I)
      • B(n);S_CUTQ(b)::QAR1(I)
      • S(a);S_CUTQ(b)::R(D)
      • S(a);S_CUTQ(b)::QAR1(I)
      • S(c);S_CUTQ(b)::R(D)
      • S(c);S_CUTQ(b)::QAR1(I)
      • P(h);S_CUTQ(b)::R(D)
      • P(k);S_CUTQ(b)::R(D)
      • P(m);S_CUTQ(b)::R(D)
      • P(o);S_CUTQ(b)::R(D)
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