MESON Chess Problem Database
Problem Display
PID: 142556 (7q/3rB3/1N2b3/5p2/1K1k4/4p3/4R1Q1/1B3R1n w - - 0 1)
Wood, SJ
British Chess Magazine, 1891
#2
7 + 7
SOLUTION
- SOUND
- Sets
- 1...Qe5
- 2.Rd1#
- 1...Qf6
- 2.Bxf6#
- 1...Qg7
- 2.Qxg7#
- 1...Qh3
- 2.Bf6#
- 2.Qg7#
- 1...Qh5
- 2.Bf6#
- 2.Qg7#
- 1...Qh7
- 2.Bf6#
- 1...Qa8
- 2.Bf6#
- 2.Qg7#
- 1...Qc8
- 2.Bf6#
- 2.Qg7#
- 1...Qd8
- 2.Qg7#
- 1...Qe8
- 2.Bf6#
- 2.Qg7#
- 1...Qg8
- 2.Bf6#
- 1...f4
- 2.Qe4#
- 1...Qe5
- Tries
- 1.Rxe3?
- threat
- 2.Bc5#
- 2.Qd2#
- 1...Rxe7
- 2.Qd2#
- 1...Qe5
- 2.Rd3#
- 2.Qd2#
- 1...Qh2
- 2.Bc5#
- 1...Qc8
- 2.Qd2#
- 1...Qf8
- 2.Qd2#
- 1...Rd5
- 2.Qd2#
- 1...Rd6
- 2.Qd2#
- 1...Rc7
- 2.Qd2#
- 1...Bc4
- 2.Bc5#
- 1...Sf2
- 2.Bc5#
- 1...Kxe3!
- threat
- 1.Qf3?
- threat
- 2.Qxe3#
- 2.Qf4#
- 1...Ke5
- 2.Qxe3#
- 2.Qf4#
- 1...Qe5
- 2.Rd1#
- 1...Qh2
- 2.Qxe3#
- 1...Qh3
- 2.Bf6#
- 2.Qf4#
- 1...Qh4
- 2.Qxe3#
- 1...Qa8
- 2.Bf6#
- 2.Qxe3#
- 1...Qb8
- 2.Qxe3#
- 1...Bd5
- 2.Qxe3#
- 1...Sf2
- 2.Qxe3#
- 1...Sg3
- 2.Qxe3#
- 1...f4
- 2.Qe4#
- 2.Qxf4#
- 1...Qh6!
- threat
- 1.Qh3?
- threat
- 2.Qxe3#
- 2.Qxh8#
- 1...Ke5
- 2.Qxe3#
- 2.Qxh8#
- 1...Qxh3
- 2.Bf6#
- 1...Rxe7
- 2.Qxe3#
- 1...Qe5
- 2.Rd1#
- 1...Qf6
- 2.Bxf6#
- 2.Qxe3#
- 1...Qg7
- 2.Qxe3#
- 1...Qh4
- 2.Qxe3#
- 1...Qh5
- 2.Bf6#
- 2.Qxe3#
- 1...Qh7
- 2.Bf6#
- 2.Qxe3#
- 1...Qa8
- 2.Bf6#
- 2.Qxe3#
- 1...Qb8
- 2.Qxe3#
- 1...Qc8
- 2.Bf6#
- 2.Qxe3#
- 1...Qd8
- 2.Qxe3#
- 1...Qe8
- 2.Bf6#
- 2.Qxe3#
- 1...Qf8
- 2.Qxe3#
- 1...Qg8
- 2.Bf6#
- 2.Qxe3#
- 1...Rd5
- 2.Qxe3#
- 1...Rd8
- 2.Qxe3#
- 1...Sg3
- 2.Qxh8#
- 1...f4
- 2.Qxh8#
- 1...Qh6!
- threat
- 1.Qh2?
- threat
- 2.Bc5#
- 2.Rd1#
- 2.Qf4#
- 2.Qxh8#
- 1...Rxe7
- 2.Rd1#
- 2.Qf4#
- 1...Sg3
- 2.Qxh8#
- 1...f4
- 2.Qxf4#
- 2.Qxh8#
- 1...Qh6
- 2.Bc5#
- 2.Rd1#
- 1...Qe5
- 2.Rd1#
- 1...Qf6
- 2.Bc5#
- 2.Bxf6#
- 2.Rd1#
- 2.Qf4#
- 1...Qg7
- 2.Bc5#
- 2.Rd1#
- 2.Qf4#
- 1...Qh3
- 2.Bc5#
- 2.Bf6#
- 2.Rd1#
- 2.Qf4#
- 1...Qh4
- 2.Bc5#
- 2.Rd1#
- 1...Qh5
- 2.Bc5#
- 2.Bf6#
- 2.Rd1#
- 2.Qf4#
- 1...Qh7
- 2.Bc5#
- 2.Bf6#
- 2.Rd1#
- 2.Qf4#
- 1...Qa8
- 2.Bc5#
- 2.Bf6#
- 2.Rd1#
- 1...Qb8
- 2.Bc5#
- 2.Rd1#
- 1...Qc8
- 2.Bf6#
- 2.Rd1#
- 2.Qf4#
- 1...Qd8
- 2.Bc5#
- 2.Rd1#
- 2.Qf4#
- 1...Qe8
- 2.Bc5#
- 2.Bf6#
- 2.Rd1#
- 2.Qf4#
- 1...Qf8
- 2.Rd1#
- 2.Qf4#
- 1...Qg8
- 2.Bc5#
- 2.Bf6#
- 2.Rd1#
- 2.Qf4#
- 1...Rd5
- 2.Rd1#
- 2.Qf4#
- 1...Rd6
- 2.Rd1#
- 2.Qf4#
- 2.Qxh8#
- 1...Rc7
- 2.Rd1#
- 2.Qf4#
- 2.Qxh8#
- 1...Rd8
- 2.Bc5#
- 2.Rd1#
- 2.Qf4#
- 1...Bb3
- 2.Bc5#
- 2.Qf4#
- 2.Qxh8#
- 1...Bc4
- 2.Bc5#
- 2.Qf4#
- 2.Qxh8#
- 1...Bd5
- 2.Bc5#
- 2.Rd1#
- 2.Qxh8#
- 1...Sf2
- 2.Bc5#
- 2.Qxh8#
- 1...Qxh2!
- threat
- 1.Qg3?
- threat
- 2.Bc5#
- 2.Rd1#
- 2.Qf4#
- 2.Qxe3#
- 1...Rxe7
- 2.Rd1#
- 2.Qf4#
- 2.Qxe3#
- 1...f4
- 2.Qxf4#
- 1...Qh6
- 2.Bc5#
- 2.Rd1#
- 1...Qe5
- 2.Rd1#
- 1...Qh2
- 2.Bc5#
- 2.Bf6#
- 2.Rd1#
- 2.Qxe3#
- 1...Qh3
- 2.Bc5#
- 2.Bf6#
- 2.Rd1#
- 2.Qf4#
- 2.Qg7#
- 1...Qh4
- 2.Bc5#
- 2.Rd1#
- 2.Qxe3#
- 1...Qa8
- 2.Bc5#
- 2.Bf6#
- 2.Rd1#
- 2.Qxe3#
- 2.Qg7#
- 1...Qb8
- 2.Bc5#
- 2.Rd1#
- 2.Qxe3#
- 1...Qc8
- 2.Bf6#
- 2.Rd1#
- 2.Qf4#
- 2.Qxe3#
- 2.Qg7#
- 1...Qf8
- 2.Rd1#
- 2.Qf4#
- 2.Qxe3#
- 1...Rd5
- 2.Rd1#
- 2.Qf4#
- 2.Qxe3#
- 1...Rd6
- 2.Rd1#
- 2.Qf4#
- 2.Qxe3#
- 1...Rc7
- 2.Rd1#
- 2.Qf4#
- 2.Qxe3#
- 1...Bb3
- 2.Bc5#
- 2.Qf4#
- 2.Qxe3#
- 1...Bc4
- 2.Bc5#
- 2.Qf4#
- 2.Qxe3#
- 1...Bd5
- 2.Bc5#
- 2.Rd1#
- 2.Qxe3#
- 1...Sf2
- 2.Bc5#
- 2.Qxe3#
- 1...Sxg3!
- threat
- 1.Qg4+?
- 1...Ke5
- 2.Rxe3#
- 2.Qf4#
- 1...f4
- 2.Qxf4#
- 1...fxg4!
- 1...Ke5
- 1.Qg5?
- threat
- 2.Qxe3#
- 2.Qf4#
- 1...Ke5
- 2.Qxe3#
- 2.Qf4#
- 1...Qe5
- 2.Rd1#
- 1...Qh2
- 2.Qxe3#
- 1...Qh3
- 2.Bf6#
- 2.Qf4#
- 2.Qf6#
- 2.Qg7#
- 1...Qh4
- 2.Bf6#
- 2.Qxe3#
- 1...Qa8
- 2.Bf6#
- 2.Qxe3#
- 2.Qf6#
- 2.Qg7#
- 1...Qb8
- 2.Qxe3#
- 1...Bd5
- 2.Qxe3#
- 1...Sf2
- 2.Qxe3#
- 1...Sg3
- 2.Qxe3#
- 1...f4
- 2.Bc5#
- 2.Rd1#
- 2.Rxf4#
- 2.Qxf4#
- 2.Qc5#
- 1...Qh6!
- threat
- 1.Rxe3?
- Keys
- 1.Qa8!
- threat
- 2.Qa1#
- 2.Qxh8#
- 1...Ke5
- 2.Qxh8#
- 1...Qxa8
- 2.Bf6#
- 1...Rxe7
- 2.Qa1#
- 1...Qh6
- 2.Qa1#
- 1...Qe5
- 2.Rd1#
- 2.Qa1#
- 1...Qf6
- 2.Bxf6#
- 2.Qa1#
- 1...Qg7
- 2.Qa1#
- 1...Qh2
- 2.Qa1#
- 1...Qh3
- 2.Bf6#
- 2.Qa1#
- 1...Qh4
- 2.Qa1#
- 1...Qh5
- 2.Bf6#
- 2.Qa1#
- 1...Qh7
- 2.Bf6#
- 2.Qa1#
- 1...Qb8
- 2.Qa1#
- 1...Qc8
- 2.Bf6#
- 1...Qd8
- 2.Qa1#
- 1...Qe8
- 2.Bf6#
- 2.Qa1#
- 1...Qf8
- 2.Qa1#
- 1...Qg8
- 2.Bf6#
- 2.Qa1#
- 1...Rd5
- 2.Qa1#
- 1...Ra7
- 2.Qxh8#
- 1...Rc7
- 2.Qxh8#
- 1...Rd8
- 2.Qa1#
- 1...Ba2
- 2.Qxh8#
- 1...Bg8
- 2.Qa1#
- threat
- 1.Qa8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 15
- REMOVED MATES = 5
- Sets
- Q(g);SBLOCK::R(B)
- Q(g);N_GUARD::B(G),XQ(g)
- Q(g);N_GUARD::QAB(D),XQ(g)
- Q(g);N_GUARD::B(G)
- Q(g);N_GUARD::QAB(D)
- P(d);N_GUARD::QAR1(D)
- Tries
- Try
- R(C);XP(b)
- Threat
- DUALS(2)
- Vars
- R(f);XB(G)::QAR2(D)
- Q(g);::B(G)
- Q(g);::QAR2(D)
- Q(g);P_PINB(G)::QAR2(D)
- R(f);::QAR2(D)
- B(e);::B(G)
- S(a);::B(G)
- Refutation
- K(c);S_FLIGHT,XR(C)
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- Q(g);SBLOCK::R(B)
- Q(g);::QAB1(D),XP(b)
- Q(g);P_PINS(F)::QAB1(D),XP(b)
- B(e);::QAB1(D),XP(b)
- S(a);::QAB1(D),XP(b)
- Refutation
- Q(g);
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- Q(g);N_GUARD,XQ(D)::B(G)
- R(f);XB(G)::QAB1(D),XP(b)
- Q(g);SBLOCK::R(B)
- Q(g);::QAB1(D),XP(b)
- Q(g);P_PINS(F)::QAB1(D),XP(b)
- Q(g);P_PINB(G)::QAB1(D),XP(b)
- R(f);::QAB1(D),XP(b)
- S(a);::QAB(D),XQ(g)
- P(d);::QAB(D),XQ(g)
- Refutation
- Q(g);
- Try
- Q(D);
- Threat
- DUALS(4)
- Vars
- S(a);::QAB(D),XQ(g)
- Q(g);::R(B)
- Refutation
- Q(g);XQ(D)
- Try
- Q(D);
- Threat
- DUALS(4)
- Vars
- P(d);::QAR2(D),XP(d)
- Q(g);::R(B)
- Refutation
- S(a);XQ(D)
- Try
- Q(D);CHECK
- Vars
- P(d);P_SPINP(d)::QAR2(D),XP(d)
- Refutation
- P(d);XQ(D)
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- Q(g);SBLOCK::R(B)
- Q(g);::QAB1(D),XP(b)
- Q(g);P_PINS(F)::QAB1(D),XP(b)
- B(e);::QAB1(D),XP(b)
- S(a);::QAB1(D),XP(b)
- Refutation
- Q(g);
- Try
- Actual
- Q(D);
- Threat
- DUALS(2)
- Vars
- K(c);P_SPINP(b),S_FLIGHT::QAB(D),XQ(g)
- Q(g);N_GUARD,XQ(D)::B(G)
- R(f);XB(G)::QAB(D)
- Q(g);::QAB(D)
- Q(g);P_PINS(F)::QAB(D)
- Q(g);N_GUARD::B(G)
- Q(g);P_PINB(G)::QAB(D)
- R(f);::QAB(D)
- R(f);::QAB(D),XQ(g)
- B(e);::QAB(D),XQ(g)
- B(e);::QAB(D)
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).