MESON Chess Problem Database

Problem Display
PID: 968 (5n2/3N1Q2/1pn3p1/Pp6/p2p2p1/P2k4/1P1P1p2/3K3B w - - 0 1)

Willmott, Arthur

Apprenti Sorcier, 1992

5n2/3N1Q2/1pn3p1/Pp6/p2p2p1/P2k4/1P1P1p2/3K3B

#2

8 + 10

133 The Problemist Supplement 1994

SOLUTION

  • SOUND
  • Sets
    • 1...Sb4
      • 2.Se5#
    • 1...Sxa5
      • 2.Se5#
    • 1...Se5
      • 2.Sxe5#
    • 1...Sa7
      • 2.Se5#
    • 1...Se7
      • 2.Se5#
    • 1...Sb8
      • 2.Se5#
    • 1...Sd8
      • 2.Se5#
    • 1...f1Q+
      • 2.Qxf1#
    • 1...f1S
      • 2.Qxf1#
    • 1...f1B
      • 2.Qxf1#
    • 1...f1R+
      • 2.Qxf1#
    • 1...bxa5
      • 2.Sc5#
  • Tries
    • 1.Bd5?
      • 1...f1Q+
        • 2.Qxf1#
      • 1...f1R+
        • 2.Qxf1#
      • 1...Sxa5
        • 2.Se5#
      • 1...Sxd7
        • 2.Qxg6#
      • 1...bxa5
        • 2.Sc5#
      • 1...f1S
        • 2.Qxf1#
      • 1...f1B
        • 2.Qxf1#
      • 1...Sb4
        • 2.Se5#
      • 1...Se5
        • 2.Sxe5#
      • 1...Sa7
        • 2.Se5#
      • 1...Se7
        • 2.Se5#
      • 1...Sb8
        • 2.Se5#
      • 1...Sd8
        • 2.Se5#
      • 1...Se6
        • 2.Qxg6#
      • 1...Sh7
        • 2.Qxg6#
      • 1...g3
        • 2.Qf3#
      • 1...g5
        • 2.Qf5#
      • 1...b4!
    • 1.Bxc6?
      • threat
        • 2.Se5#
      • 1...f1Q+
        • 2.Qxf1#
      • 1...f1R+
        • 2.Qxf1#
      • 1...Sxd7!
    • 1.Qxg6+?
      • 1...Kc4
        • 2.Qc2#
      • 1...Sxg6!
    • 1.Qf5+?
      • 1...Kc4
        • 2.Bd5#
        • 2.Qc2#
      • 1...gxf5!
  • Keys
    • 1.b3!
      • 1...f1Q+
        • 2.Qxf1#
      • 1...f1R+
        • 2.Qxf1#
      • 1...Sxa5
        • 2.Se5#
      • 1...Sxd7
        • 2.Qxg6#
      • 1...axb3
        • 2.Qxb3#
      • 1...bxa5
        • 2.Sc5#
      • 1...f1S
        • 2.Qxf1#
      • 1...f1B
        • 2.Qxf1#
      • 1...Sb4
        • 2.Se5#
      • 1...Se5
        • 2.Sxe5#
      • 1...Sa7
        • 2.Se5#
      • 1...Se7
        • 2.Se5#
      • 1...Sb8
        • 2.Se5#
      • 1...Sd8
        • 2.Se5#
      • 1...Se6
        • 2.Qxg6#
      • 1...Sh7
        • 2.Qxg6#
      • 1...g3
        • 2.Qf3#
      • 1...b4
        • 2.Qc4#
      • 1...g5
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • S(h);N_GUARD::S(G)
    • S(h);N_GUARD,XP(F)::S(G)
    • S(h);N_GUARD::S(G),XS(h)
    • P(a);CHECK,OGATE::QAB(H),XQ(a)
    • P(a);OGATE::QAB(H),XS(a)
    • P(a);OGATE::QAB(H),XB(a)
    • P(a);CHECK,OGATE::QAB(H),XR(a)
    • P(g);N_GUARD,XP(F)::S(G)
  • Tries
    • Try
      • B(B);
      • Vars
        • P(a);CHECK,OGATE::QAB(H),XQ(a)
        • P(a);CHECK,OGATE::QAB(H),XR(a)
        • S(h);N_GUARD,XP(F)::S(G)
        • S(j);N_GUARD,XS(G)::QAB(H),XP(i)
        • P(g);N_GUARD,XP(F)::S(G)
        • P(a);OGATE::QAB(H),XS(a)
        • P(a);OGATE::QAB(H),XB(a)
        • S(h);N_GUARD::S(G)
        • S(h);N_GUARD::S(G),XS(h)
        • S(j);N_GUARD::QAB(H),XP(i)
        • P(e);N_GUARD::QAR2(H)
        • P(i);N_GUARD::QAB(H)
      • Refutation
        • P(f);
    • Try
      • B(B);XS(h)
      • Threat
        • S(G)
      • Vars
        • P(a);CHECK,OGATE::QAB(H),XQ(a)
        • P(a);CHECK,OGATE::QAB(H),XR(a)
      • Refutation
        • S(j);XS(G)
    • Try
      • Q(H);CHECK,XP(i)
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR2(H)
      • Refutation
        • S(j);XQ(H)
    • Try
      • Q(H);CHECK
      • Refutation
        • P(i);XQ(H)
  • Actual
    • P(C);
    • Vars
      • P(a);CHECK,OGATE::QAB(H),XQ(a)
      • P(a);CHECK,OGATE::QAB(H),XR(a)
      • S(h);N_GUARD,XP(F)::S(G)
      • S(j);N_GUARD,XS(G)::QAB(H),XP(i)
      • P(c);OGATE,XP(C)::QAR2(H),XP(c)
      • P(g);N_GUARD,XP(F)::S(G)
      • P(a);OGATE::QAB(H),XS(a)
      • P(a);OGATE::QAB(H),XB(a)
      • S(h);N_GUARD::S(G)
      • S(h);N_GUARD::S(G),XS(h)
      • S(j);N_GUARD::QAB(H),XP(i)
      • P(e);N_GUARD::QAR2(H)
      • P(f);N_GUARD::QAB1(H)
      • P(i);N_GUARD::QAB(H)
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