MESON Chess Problem Database

Problem Display
PID: 47651 (4N3/1Rp2n1Q/Rp3Nr1/B3kB1b/1p4P1/3pKp2/3PPP2/8 w - - 0 1)

Fulpius, Jaques

Die Schwalbe, 1978

4N3/1Rp2n1Q/Rp3Nr1/B3kB1b/1p4P1/3pKp2/3PPP2/8

#2

12 + 9

4640 Chess Wizardry: The New ABC of Chess Problems 1996
133 The Problemist Supplement 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Sg5
      • 2.Qxc7#
    • 1...Sd6
      • 2.Qe7#
    • 1...Sh6
      • 2.Qxc7#
      • 2.Qe7#
    • 1...Sd8
      • 2.Qxc7#
    • 1...Sh8
      • 2.Qxc7#
      • 2.Qe7#
    • 1...dxe2
      • 2.d4#
    • 1...fxe2
      • 2.f4#
    • 1...b3
      • 2.Bc3#
    • 1...bxa5
      • 2.Re6#
    • 1...b5
      • 2.Re6#
    • 1...c5
      • 2.Re7#
    • 1...c6
      • 2.Re7#
  • Tries
    • 1.Qxf7?
      • threat
        • 2.Sd7#
        • 2.Qd5#
        • 2.Qe6#
        • 2.Qxc7#
        • 2.Qe7#
      • 1...Rxg4
        • 2.Sd7#
        • 2.Qd5#
        • 2.Qe6#
      • 1...Bxg4
        • 2.Sd7#
        • 2.Qd5#
        • 2.Qe6#
      • 1...Rg7
        • 2.Sd7#
        • 2.Qd5#
        • 2.Qe6#
      • 1...c5
        • 2.Sd7#
        • 2.Re7#
        • 2.Qd5#
        • 2.Qe6#
        • 2.Qc7#
        • 2.Qe7#
      • 1...c6
        • 2.Sd7#
        • 2.Re7#
        • 2.Qe6#
        • 2.Qc7#
        • 2.Qe7#
      • 1...Rxf6!
  • Keys
    • 1.Bc8!
      • 1...Rxg4
        • 2.Qf5#
      • 1...Rxf6
        • 2.Qe4#
      • 1...Bxg4
        • 2.Qh2#
      • 1...dxe2
        • 2.d4#
      • 1...fxe2
        • 2.f4#
      • 1...bxa5
        • 2.Re6#
      • 1...Rg5
        • 2.Qe4#
      • 1...Rh6
        • 2.Qe4#
        • 2.Qf5#
      • 1...Rg7
        • 2.Qe4#
        • 2.Qf5#
      • 1...Rg8
        • 2.Qe4#
        • 2.Qf5#
      • 1...Sg5
        • 2.Qxc7#
      • 1...Sd6
        • 2.Qe7#
      • 1...Sh6
        • 2.Qxc7#
        • 2.Qe7#
      • 1...Sd8
        • 2.Qxc7#
      • 1...Sh8
        • 2.Qxc7#
        • 2.Qe7#
      • 1...b3
        • 2.Bc3#
      • 1...b5
        • 2.Re6#
      • 1...c5
        • 2.Re7#
      • 1...c6
        • 2.Re7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(i);OGATE::QAB(K),XP(h)
    • S(i);OGATE::QAR2(K)
    • P(a);OGATE,XP(B)::P(A)
    • P(b);OGATE,XP(B)::P(C)
    • P(c);OGATE::B(F)
    • P(f);OGATE,XB(F)::R1(H)
    • P(f);OGATE::R1(H)
    • P(h);OGATE::R(J)
  • Tries
    • Try
      • Q(K);XS(i)
      • Threat
        • DUALS(5)
      • Refutation
        • R(g);XS(I)
  • Actual
    • B(G);
    • Vars
      • R(g);OGATE,XP(E)::QAR1(K)
      • R(g);OGATE,XS(I)::QAR1(K)
      • B(e);OGATE,XP(E)::QAB(K)
      • P(a);OGATE,XP(B)::P(A)
      • P(b);OGATE,XP(B)::P(C)
      • P(f);OGATE,XB(F)::R1(H)
      • R(g);OGATE::QAR1(K)
      • S(i);OGATE::QAB(K),XP(h)
      • S(i);OGATE::QAR2(K)
      • P(c);OGATE::B(F)
      • P(f);OGATE::R1(H)
      • P(h);OGATE::R(J)
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