MESON Chess Problem Database
Problem Display
PID: 109463 (1B6/8/4R1N1/Pppk1Pb1/1Pnp2p1/3P4/4B3/Q6K w - - 0 1)
Sturgess, JE
Canadian Chess Chat, 1981
#2
10 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bc1
- 2.Se7#
- 1...Bd2
- 2.Se7#
- 1...Be3
- 2.Se7#
- 1...Bf4
- 2.Sxf4#
- 2.Se7#
- 1...Bh4
- 2.Sf4#
- 1...Bf6
- 2.Sf4#
- 1...Bh6
- 2.Se7#
- 1...Be7
- 2.Sf4#
- 2.Sxe7#
- 1...Bd8
- 2.Sf4#
- 1...Sb2
- 2.Rd6#
- 1...Sd2
- 2.Rd6#
- 1...Sa3
- 2.Rd6#
- 1...Se3
- 2.Rd6#
- 1...Sxa5
- 2.Rd6#
- 1...Se5
- 2.Rd6#
- 1...Sb6
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...g3
- 2.Bf3#
- 1...Bc1
- Tries
- 1.Bd1?
- 1...Sxa5
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Bc1
- 2.Se7#
- 1...Bd2
- 2.Se7#
- 1...Be3
- 2.Se7#
- 1...Bf4
- 2.Sxf4#
- 2.Se7#
- 1...Bh4
- 2.Sf4#
- 1...Bf6
- 2.Sf4#
- 1...Bh6
- 2.Se7#
- 1...Be7
- 2.Sf4#
- 2.Sxe7#
- 1...Bd8
- 2.Sf4#
- 1...Sb2
- 2.Rd6#
- 1...Sd2
- 2.Rd6#
- 1...Sa3
- 2.Rd6#
- 1...Se3
- 2.Rd6#
- 1...Se5
- 2.Rd6#
- 1...Sb6
- 2.Rd6#
- 1...g3
- 2.Bf3#
- 1...cxb4!
- 1...Sxa5
- 1.Bf1?
- threat
- 2.Bg2#
- 1...Sd6
- 2.Rxd6#
- 1...Sd2
- 2.Rd6#
- 1...Se3
- 2.Rd6#
- 1...Se5
- 2.Rd6#
- 1...cxb4!
- threat
- 1.Bxg4?
- threat
- 2.Bf3#
- 1...Sd6
- 2.Rxd6#
- 1...Sd2
- 2.Rd6#
- 1...Se5
- 2.Rd6#
- 1...cxb4!
- threat
- 1.Be5?
- 1...Sxa5
- 2.Rd6#
- 1...cxb4
- 2.Qxd4#
- 1...Sd6
- 2.Rxd6#
- 1...Bc1
- 2.Se7#
- 1...Bd2
- 2.Se7#
- 1...Be3
- 2.Se7#
- 1...Bf4
- 2.Sxf4#
- 2.Se7#
- 1...Bh4
- 2.Sf4#
- 1...Bf6
- 2.Sf4#
- 1...Bh6
- 2.Se7#
- 1...Be7
- 2.Sf4#
- 2.Sxe7#
- 1...Bd8
- 2.Sf4#
- 1...Sb2
- 2.Rd6#
- 1...Sd2
- 2.Rd6#
- 1...Sa3
- 2.Rd6#
- 1...Se3
- 2.Rd6#
- 1...Sb6
- 2.Rd6#
- 1...g3
- 2.Bf3#
- 1...Sxe5!
- 1...Sxa5
- 1.Bc7?
- 1...Sxa5
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Se5
- 2.Rd6#
- 1...Bc1
- 2.Se7#
- 1...Bd2
- 2.Se7#
- 1...Be3
- 2.Se7#
- 1...Bf4
- 2.Sxf4#
- 2.Se7#
- 1...Bh4
- 2.Sf4#
- 1...Bf6
- 2.Sf4#
- 1...Bh6
- 2.Se7#
- 1...Be7
- 2.Sf4#
- 2.Sxe7#
- 1...Bd8
- 2.Sf4#
- 1...Sb2
- 2.Rd6#
- 1...Sd2
- 2.Rd6#
- 1...Sa3
- 2.Rd6#
- 1...Se3
- 2.Rd6#
- 1...Sb6
- 2.Rd6#
- 1...g3
- 2.Bf3#
- 1...cxb4!
- 1...Sxa5
- 1.Qb2?
- 1...Sxb2
- 2.Rd6#
- 1...Sxa5
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Se5
- 2.Rd6#
- 1...Bc1
- 2.Se7#
- 1...Bd2
- 2.Se7#
- 1...Be3
- 2.Se7#
- 1...Bf4
- 2.Sxf4#
- 2.Se7#
- 1...Bh4
- 2.Sf4#
- 1...Bf6
- 2.Sf4#
- 1...Bh6
- 2.Se7#
- 1...Be7
- 2.Sf4#
- 2.Sxe7#
- 1...Bd8
- 2.Sf4#
- 1...Sd2
- 2.Rd6#
- 1...Sa3
- 2.Rd6#
- 1...Se3
- 2.Rd6#
- 1...Sb6
- 2.Rd6#
- 1...g3
- 2.Bf3#
- 1...cxb4!
- 1...Sxb2
- 1.Qb1?
- 1...Sxa5
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Se5
- 2.Rd6#
- 1...Bc1
- 2.Se7#
- 1...Bd2
- 2.Se7#
- 1...Be3
- 2.Se7#
- 1...Bf4
- 2.Sxf4#
- 2.Se7#
- 1...Bh4
- 2.Sf4#
- 1...Bf6
- 2.Sf4#
- 1...Bh6
- 2.Se7#
- 1...Be7
- 2.Sf4#
- 2.Sxe7#
- 1...Bd8
- 2.Sf4#
- 1...Sb2
- 2.Rd6#
- 1...Sd2
- 2.Rd6#
- 1...Sa3
- 2.Rd6#
- 1...Se3
- 2.Rd6#
- 1...Sb6
- 2.Rd6#
- 1...g3
- 2.Bf3#
- 1...cxb4!
- 1...Sxa5
- 1.Qc1?
- 1...Bxc1
- 2.Se7#
- 1...Sxa5
- 2.Rd6#
- 2.Qxc5#
- 1...Sd6
- 2.Rxd6#
- 2.Qxc5#
- 1...Se5
- 2.Rd6#
- 2.Qxc5#
- 1...Bd2
- 2.Se7#
- 1...Be3
- 2.Se7#
- 1...Bf4
- 2.Sxf4#
- 2.Se7#
- 1...Bh4
- 2.Sf4#
- 1...Bf6
- 2.Sf4#
- 1...Bh6
- 2.Se7#
- 1...Be7
- 2.Sf4#
- 2.Sxe7#
- 1...Bd8
- 2.Sf4#
- 1...Sb2
- 2.Rd6#
- 2.Qxc5#
- 1...Sd2
- 2.Rd6#
- 2.Qxc5#
- 1...Sa3
- 2.Rd6#
- 2.Qxc5#
- 1...Se3
- 2.Rd6#
- 2.Qxc5#
- 1...Sb6
- 2.Rd6#
- 2.Qxc5#
- 1...g3
- 2.Bf3#
- 1...cxb4!
- 1...Bxc1
- 1.Qd1?
- 1...Sxa5
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Se5
- 2.Rd6#
- 1...Bc1
- 2.Se7#
- 1...Bd2
- 2.Se7#
- 1...Be3
- 2.Se7#
- 1...Bf4
- 2.Sxf4#
- 2.Se7#
- 1...Bh4
- 2.Sf4#
- 1...Bf6
- 2.Sf4#
- 1...Bh6
- 2.Se7#
- 1...Be7
- 2.Sf4#
- 2.Sxe7#
- 1...Bd8
- 2.Sf4#
- 1...Sb2
- 2.Rd6#
- 1...Sd2
- 2.Rd6#
- 1...Sa3
- 2.Rd6#
- 1...Se3
- 2.Rd6#
- 1...Sb6
- 2.Rd6#
- 1...g3
- 2.Bf3#
- 1...cxb4!
- 1...Sxa5
- 1.Qe1?
- 1...Sxa5
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Se5
- 2.Rd6#
- 1...Bc1
- 2.Se7#
- 1...Bd2
- 2.Se7#
- 1...Be3
- 2.Se7#
- 1...Bf4
- 2.Sxf4#
- 2.Se7#
- 1...Bh4
- 2.Sf4#
- 1...Bf6
- 2.Sf4#
- 1...Bh6
- 2.Se7#
- 1...Be7
- 2.Sf4#
- 2.Sxe7#
- 1...Bd8
- 2.Sf4#
- 1...Sb2
- 2.Rd6#
- 1...Sd2
- 2.Rd6#
- 1...Sa3
- 2.Rd6#
- 1...Se3
- 2.Rd6#
- 1...Sb6
- 2.Rd6#
- 1...g3
- 2.Bf3#
- 1...cxb4!
- 1...Sxa5
- 1.Qf1?
- threat
- 2.Qg2#
- 1...Sd6
- 2.Rxd6#
- 1...Se5
- 2.Rd6#
- 1...Sd2
- 2.Rd6#
- 1...Se3
- 2.Rd6#
- 1...cxb4!
- threat
- 1.Qg1?
- threat
- 2.Qg2#
- 1...Sd6
- 2.Rxd6#
- 1...Se5
- 2.Rd6#
- 1...Sd2
- 2.Rd6#
- 1...Se3
- 2.Rd6#
- 1...cxb4!
- threat
- 1.Qa2?
- threat
- 2.Rd6#
- 1...Bf4
- 2.Sxf4#
- 2.Se7#
- 1...Be7
- 2.Sf4#
- 2.Sxe7#
- 1...cxb4!
- threat
- 1.Qa3?
- 1...Sxa3
- 2.Rd6#
- 1...Sxa5
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Se5
- 2.Rd6#
- 1...Bc1
- 2.Se7#
- 1...Bd2
- 2.Se7#
- 1...Be3
- 2.Se7#
- 1...Bf4
- 2.Sxf4#
- 2.Se7#
- 1...Bh4
- 2.Sf4#
- 1...Bf6
- 2.Sf4#
- 1...Bh6
- 2.Se7#
- 1...Be7
- 2.Sf4#
- 2.Sxe7#
- 1...Bd8
- 2.Sf4#
- 1...Sb2
- 2.Rd6#
- 1...Sd2
- 2.Rd6#
- 1...Se3
- 2.Rd6#
- 1...Sb6
- 2.Rd6#
- 1...g3
- 2.Bf3#
- 1...cxb4!
- 1...Sxa3
- 1.a6?
- 1...Sd6
- 2.Rxd6#
- 1...Se5
- 2.Rd6#
- 1...Bc1
- 2.Se7#
- 1...Bd2
- 2.Se7#
- 1...Be3
- 2.Se7#
- 1...Bf4
- 2.Sxf4#
- 2.Se7#
- 1...Bh4
- 2.Sf4#
- 1...Bf6
- 2.Sf4#
- 1...Bh6
- 2.Se7#
- 1...Be7
- 2.Sf4#
- 2.Sxe7#
- 1...Bd8
- 2.Sf4#
- 1...Sb2
- 2.Rd6#
- 1...Sd2
- 2.Rd6#
- 1...Sa3
- 2.Rd6#
- 1...Se3
- 2.Rd6#
- 1...Sa5
- 2.Rd6#
- 1...Sb6
- 2.Rd6#
- 1...g3
- 2.Bf3#
- 1...cxb4!
- 1...Sd6
- 1.Bd1?
- Keys
- 1.Qa4!
- 1...Sxa5
- 2.Rd6#
- 1...bxa4
- 2.dxc4#
- 1...cxb4
- 2.Qxb5#
- 1...Sd6
- 2.Rxd6#
- 1...Se5
- 2.Rd6#
- 1...Bc1
- 2.Se7#
- 1...Bd2
- 2.Se7#
- 1...Be3
- 2.Se7#
- 1...Bf4
- 2.Sxf4#
- 2.Se7#
- 1...Bh4
- 2.Sf4#
- 1...Bf6
- 2.Sf4#
- 1...Bh6
- 2.Se7#
- 1...Be7
- 2.Sf4#
- 2.Sxe7#
- 1...Bd8
- 2.Sf4#
- 1...Sb2
- 2.Rd6#
- 1...Sd2
- 2.Rd6#
- 1...Sa3
- 2.Rd6#
- 1...Se3
- 2.Rd6#
- 1...Sb6
- 2.Rd6#
- 1...g3
- 2.Bf3#
- 1...Sxa5
- 1.Qa4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- B(g);N_GUARD::S(I)
- S(a);N_GUARD::R1(H)
- S(a);N_GUARD,XP(F)::R1(H)
- S(a);N_GUARD::R1(H),XS(a)
- P(c);N_GUARD::B(C)
- Tries
- Try
- B(C);
- Vars
- S(a);N_GUARD,XP(F)::R1(H)
- S(a);N_GUARD::R1(H),XS(a)
- B(g);N_GUARD::S(I)
- S(a);N_GUARD::R1(H)
- P(c);N_GUARD::B(C)
- Refutation
- P(e);XP(E)
- Try
- B(C);
- Threat
- B(C)
- Vars
- S(a);N_GUARD::R1(H),XS(a)
- S(a);N_GUARD::R1(H)
- Refutation
- P(e);XP(E)
- Try
- B(C);XP(c)
- Threat
- B(C)
- Vars
- S(a);N_GUARD::R1(H),XS(a)
- S(a);N_GUARD::R1(H)
- Refutation
- P(e);XP(E)
- Try
- B(J);
- Vars
- S(a);N_GUARD,XP(F)::R1(H)
- P(e);N_GUARD,XP(E)::QAR1(A),XP(b)
- S(a);N_GUARD::R1(H),XS(a)
- B(g);N_GUARD::S(I)
- S(a);N_GUARD::R1(H)
- P(c);N_GUARD::B(C)
- Refutation
- S(a);XB(J)
- Try
- B(J);
- Vars
- S(a);N_GUARD,XP(F)::R1(H)
- S(a);N_GUARD::R1(H),XS(a)
- S(a);N_GUARD::R1(H)
- B(g);N_GUARD::S(I)
- P(c);N_GUARD::B(C)
- Refutation
- P(e);XP(E)
- Try
- Q(A);
- Vars
- S(a);N_GUARD,XQ(A)::R1(H)
- S(a);N_GUARD,XP(F)::R1(H)
- S(a);N_GUARD::R1(H),XS(a)
- S(a);N_GUARD::R1(H)
- B(g);N_GUARD::S(I)
- P(c);N_GUARD::B(C)
- Refutation
- P(e);XP(E)
- Try
- Q(A);
- Vars
- S(a);N_GUARD,XP(F)::R1(H)
- S(a);N_GUARD::R1(H),XS(a)
- S(a);N_GUARD::R1(H)
- B(g);N_GUARD::S(I)
- P(c);N_GUARD::B(C)
- Refutation
- P(e);XP(E)
- Try
- Q(A);
- Vars
- B(g);N_GUARD,XQ(A)::S(I)
- B(g);N_GUARD::S(I)
- P(c);N_GUARD::B(C)
- Refutation
- P(e);XP(E)
- Try
- Q(A);
- Vars
- S(a);N_GUARD,XP(F)::R1(H)
- S(a);N_GUARD::R1(H),XS(a)
- S(a);N_GUARD::R1(H)
- B(g);N_GUARD::S(I)
- P(c);N_GUARD::B(C)
- Refutation
- P(e);XP(E)
- Try
- Q(A);
- Vars
- S(a);N_GUARD,XP(F)::R1(H)
- S(a);N_GUARD::R1(H),XS(a)
- S(a);N_GUARD::R1(H)
- B(g);N_GUARD::S(I)
- P(c);N_GUARD::B(C)
- Refutation
- P(e);XP(E)
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- S(a);N_GUARD::R1(H),XS(a)
- S(a);N_GUARD::R1(H)
- Refutation
- P(e);XP(E)
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- S(a);N_GUARD::R1(H),XS(a)
- S(a);N_GUARD::R1(H)
- Refutation
- P(e);XP(E)
- Try
- Q(A);P_PINS(a)
- Threat
- R1(H)
- Refutation
- P(e);XP(E)
- Try
- Q(A);
- Vars
- S(a);N_GUARD,XQ(A)::R1(H)
- S(a);N_GUARD,XP(F)::R1(H)
- S(a);N_GUARD::R1(H),XS(a)
- S(a);N_GUARD::R1(H)
- B(g);N_GUARD::S(I)
- P(c);N_GUARD::B(C)
- Refutation
- P(e);XP(E)
- Try
- P(F);
- Vars
- S(a);N_GUARD::R1(H),XS(a)
- S(a);N_GUARD::R1(H)
- B(g);N_GUARD::S(I)
- P(c);N_GUARD::B(C)
- Refutation
- P(e);XP(E)
- Try
- Actual
- Q(A);
- Vars
- S(a);N_GUARD,XP(F)::R1(H)
- P(d);N_GUARD,XQ(A)::P(D),XS(a)
- P(e);OGATEB,XP(E)::QAR2(A),XP(d)
- S(a);N_GUARD::R1(H),XS(a)
- S(a);N_GUARD::R1(H)
- B(g);N_GUARD::S(I)
- P(c);N_GUARD::B(C)
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).