MESON Chess Problem Database
Problem Display
PID: 137321 (5Qn1/2b5/5n2/2p2p2/p1P2kpP/rp1KR2P/pB2B1pP/N4bN1 w - - 0 1)
Fegan, Bertram George
Australasian Chess Magazine, 1920
#2
11 + 13
SOLUTION
- SOUND
- Sets
- 1...Bxe2+
- 2.Sxe2#
- 1...Ba5
- 2.Be5#
- 2.Qd6#
- 1...Be5
- 2.Bxe5#
- 1...Bb6
- 2.Be5#
- 2.Qd6#
- 1...Bd6
- 2.Qxd6#
- 1...Bb8
- 2.Qxb8#
- 1...Bd8
- 2.Be5#
- 2.Qd6#
- 1...Se4
- 2.Rxe4#
- 1...Sd5
- 2.Re4#
- 1...Sh5
- 2.Re4#
- 1...Sd7
- 2.Re4#
- 1...Sh7
- 2.Re4#
- 1...Se8
- 2.Re4#
- 1...Sh6
- 2.Qxh6#
- 1...Se7
- 2.Qh6#
- 1...gxh3
- 2.Sxh3#
- 1...g3
- 2.Rf3#
- 2.hxg3#
- 1...Bxe2+
- Tries
- 1.Bc1?
- threat
- 2.Re4#
- 2.Re6#
- 2.Re7#
- 2.Re8#
- 1...Bxe2+
- 2.Sxe2#
- 2.Rxe2#
- 1...Se4
- 2.Rxe4#
- 1...Ba5
- 2.Re4#
- 2.Qd6#
- 1...Be5
- 2.Rf3#
- 2.Rg3#
- 2.Re4#
- 1...Sd5
- 2.Re4#
- 1...Se8
- 2.Re4#
- 2.Re6#
- 2.Re7#
- 2.Rxe8#
- 1...Se7
- 2.Re4#
- 2.Re6#
- 2.Rxe7#
- 2.Qh6#
- 1...b2+!
- threat
- 1.Bc3?
- 1...Bxe2+
- 2.Sxe2#
- 1...gxh3
- 2.Sxh3#
- 1...Ba5
- 2.Be5#
- 2.Qd6#
- 1...Be5
- 2.Bxe5#
- 1...Bb6
- 2.Be5#
- 2.Qd6#
- 1...Bd6
- 2.Qxd6#
- 1...Bb8
- 2.Qxb8#
- 1...Bd8
- 2.Be5#
- 2.Qd6#
- 1...Se4
- 2.Rxe4#
- 1...Sd5
- 2.Re4#
- 1...Sh5
- 2.Re4#
- 1...Sd7
- 2.Re4#
- 1...Sh7
- 2.Re4#
- 1...Se8
- 2.Re4#
- 1...Sh6
- 2.Qxh6#
- 1...Se7
- 2.Qh6#
- 1...g3
- 2.Rf3#
- 2.hxg3#
- 1...b2!
- 1...Bxe2+
- 1.Bxf6?
- threat
- 2.Bg5#
- 1...Bxe2+
- 2.Sxe2#
- 1...Sxf6
- 2.Qh6#
- 1...Bd8
- 2.Be5#
- 2.Qd6#
- 1...b2+!
- threat
- 1.Re6?
- threat
- 2.Bc1#
- 1...Ba5
- 2.Be5#
- 2.Qd6#
- 1...Se4
- 2.Rxe4#
- 1...Sd5
- 2.Re4#
- 1...Bxe2+!
- threat
- 1.Re7?
- threat
- 2.Bc1#
- 1...Sxe7
- 2.Qh6#
- 1...Ba5
- 2.Be5#
- 1...Se4
- 2.Rxe4#
- 1...Sd5
- 2.Re4#
- 1...Bxe2+!
- threat
- 1.Qg7?
- threat
- 2.Qg5#
- 2.Qxc7#
- 1...Bxe2+
- 2.Sxe2#
- 1...Ba5
- 2.Be5#
- 2.Qg5#
- 1...Be5
- 2.Bxe5#
- 2.Qg5#
- 1...Bb6
- 2.Be5#
- 2.Qg5#
- 1...Bd6
- 2.Qg5#
- 1...Bb8
- 2.Qg5#
- 1...Bd8
- 2.Be5#
- 2.Qg5#
- 1...Sd5
- 2.Qg5#
- 1...Sd7
- 2.Qg5#
- 1...Sh7
- 2.Qxc7#
- 1...Se8
- 2.Qg5#
- 1...Se7
- 2.Qh6#
- 2.Qg5#
- 1...Se4!
- threat
- 1.Qxf6?
- threat
- 2.Re4#
- 2.Qg5#
- 1...Bxe2+
- 2.Sxe2#
- 1...Bd8
- 2.Be5#
- 2.Re4#
- 2.Qe5#
- 2.Qd6#
- 1...Sxf6!
- threat
- 1.Qd8?
- threat
- 2.Qxc7#
- 1...Bxe2+
- 2.Sxe2#
- 1...Bxd8
- 2.Be5#
- 1...Ba5
- 2.Be5#
- 2.Qd6#
- 1...Be5
- 2.Bxe5#
- 1...Bb6
- 2.Be5#
- 2.Qd6#
- 1...Bd6
- 2.Qxd6#
- 1...Bb8
- 2.Qxb8#
- 1...Sd5
- 2.Qg5#
- 1...Sd7
- 2.Qg5#
- 1...Se8
- 2.Qg5#
- 1...Se4!
- threat
- 1.Bc1?
- Keys
- 1.Rg3!
- 1...Bxe2+
- 2.Sxe2#
- 1...gxh3
- 2.Sxh3#
- 1...Ba5
- 2.Qd6#
- 1...Be5
- 2.Bc1#
- 1...Bb6
- 2.Qd6#
- 1...Bd6
- 2.Qxd6#
- 1...Bb8
- 2.Qxb8#
- 1...Bd8
- 2.Qd6#
- 1...Se4
- 2.Rxg4#
- 1...Sd5
- 2.Rxg4#
- 1...Sh5
- 2.Rxg4#
- 1...Sd7
- 2.Rxg4#
- 1...Sh7
- 2.Rxg4#
- 1...Se8
- 2.Rxg4#
- 1...Sh6
- 2.Qxh6#
- 1...Se7
- 2.Qh6#
- 1...Bxe2+
- 1.Rg3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 7
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- B(a);CHECK,XB(D)::S(B),XB(a)
- B(l);N_GUARD::B(C),XB(l)
- B(l);N_GUARD::QAB(K),XB(l)
- B(l);OGATEB::QAB(K),XB(l)
- S(k);N_GUARD,P_SPINP(j)::R1(G),XS(k)
- S(k);N_GUARD,P_SPINP(j)::R1(G)
- S(m);N_GUARD::QAB(K),XS(m)
- S(m);N_GUARD::QAB(K)
- P(h);XP(H)::S(B),XP(h)
- Tries
- Try
- B(C);
- Threat
- DUALS(4)
- Vars
- S(k);P_SPINP(j)::B(C)+R(G),DCHECK,XS(k)
- S(k);P_SPINP(j)::B(C)+R(G),DCHECK
- Refutation
- P(e);CHECK
- Try
- B(C);
- Vars
- B(a);CHECK,XB(D)::S(B),XB(a)
- P(h);XP(H)::S(B),XP(h)
- B(l);N_GUARD::B(C),XB(l)
- B(l);N_GUARD::QAB(K),XB(l)
- B(l);OGATEB::QAB(K),XB(l)
- S(k);N_GUARD,P_SPINP(j)::R1(G),XS(k)
- S(k);N_GUARD,P_SPINP(j)::R1(G)
- S(m);N_GUARD::QAB(K),XS(m)
- S(m);N_GUARD::QAB(K)
- Refutation
- P(e);
- Try
- B(C);XS(k)
- Threat
- B(C)
- Vars
- B(a);CHECK,XB(D)::S(B),XB(a)
- S(m);N_GUARD,XB(C)::QAB(K)
- Refutation
- P(e);CHECK
- Try
- R(G);
- Threat
- B(C)
- Vars
- S(k);N_GUARD,P_SPINP(j)::R1(G),XS(k)
- S(k);N_GUARD,P_SPINP(j)::R1(G)
- Refutation
- B(a);CHECK,XB(D)
- Try
- R(G);
- Threat
- B(C)
- Vars
- S(m);N_GUARD,XR(G)::QAB(K)
- B(l);N_GUARD::B(C)
- S(k);N_GUARD,P_SPINP(j)::R1(G),XS(k)
- S(k);N_GUARD,P_SPINP(j)::R1(G)
- Refutation
- B(a);CHECK,XB(D)
- Try
- Q(K);
- Threat
- DUALS(2)
- Vars
- B(a);CHECK,XB(D)::S(B),XB(a)
- B(l);::QAB1(K)
- S(k);::QAB1(K)
- S(k);::QAB(K),XB(l)
- Refutation
- S(k);
- Try
- Q(K);P_PINP(j),XS(k)
- Threat
- DUALS(2)
- Vars
- B(a);CHECK,XB(D)::S(B),XB(a)
- Refutation
- S(m);N_SPINP(j),XQ(K)
- Try
- Q(K);
- Threat
- QAB(K),XB(l)
- Vars
- B(a);CHECK,XB(D)::S(B),XB(a)
- B(l);N_GUARD,XQ(K)::B(C)
- B(l);N_GUARD::B(C),XB(l)
- B(l);N_GUARD::QAB(K),XB(l)
- B(l);OGATEB::QAB(K),XB(l)
- S(k);OGATE::QAB1(K)
- Refutation
- S(k);
- Try
- Actual
- R(G);
- Vars
- B(a);CHECK,XB(D)::S(B),XB(a)
- P(h);XP(H)::S(B),XP(h)
- B(l);N_GUARD::QAB(K)
- B(l);SBLOCK::B(C)
- B(l);N_GUARD::QAB(K),XB(l)
- B(l);OGATEB::QAB(K),XB(l)
- S(k);N_GUARD,P_SPINP(j)::R1(G),XP(h)
- S(m);N_GUARD::QAB(K),XS(m)
- S(m);N_GUARD::QAB(K)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).