MESON Chess Problem Database
Problem Display
PID: 181887 (3n1K1b/p2rP3/7Q/5RN1/N2kp1Rr/1P2p1B1/2P5/6n1 w - - 0 1)
Mackenzie, Arthur Ford
San Francisco Chronicle, 1905
#2
10 + 9
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Rxe4#
- 1...Rh2
- 2.Rxe4#
- 1...Rh3
- 2.Rxe4#
- 1...Rxg4
- 2.Qxh8#
- 1...Rh5
- 2.Rxe4#
- 1...Rxh6
- 2.Rxe4#
- 1...Rd6
- 2.Qxd6#
- 1...Rb7
- 2.Qd6#
- 1...Rc7
- 2.Qd6#
- 1...Rxe7
- 2.Qd6#
- 1...Bf6
- 2.Qxf6#
- 1...Bg7+
- 2.Qxg7#
- 1...Se2
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sh3
- 2.Sf3#
- 1...Sc6
- 2.Se6#
- 1...Se6+
- 2.Sxe6#
- 1...Sb7
- 2.Se6#
- 1...Sf7
- 2.Se6#
- 1...e2
- 2.Bf2#
- 1...a5
- 2.Qb6#
- 1...a6
- 2.Qb6#
- 1...Rh1
- Tries
- 1.Be1?
- threat
- 2.Bc3#
- 1...Bg7+
- 2.Qxg7#
- 1...Se6+
- 2.Sxe6#
- 1...e2
- 2.Bf2#
- 1...Rc7
- 2.Qd6#
- 1...Se2
- 2.Sf3#
- 1...Be5!
- threat
- 1.Bxh4?
- threat
- 2.Rxe4#
- 2.Qxh8#
- 1...Bg7+
- 2.Qxg7#
- 1...Se6+
- 2.Sxe6#
- 1...Rxe7
- 2.Qd6#
- 1...e2
- 2.Bf2#
- 2.Rxe4#
- 1...Rd5
- 2.Rxe4#
- 1...Rd6
- 2.Rxe4#
- 2.Qxd6#
- 1...Bf6
- 2.Rxe4#
- 2.Qxf6#
- 1...Sf3
- 2.Sxf3#
- 2.Rxe4#
- 1...Sc6
- 2.Se6#
- 2.Rxe4#
- 1...Sf7
- 2.Se6#
- 2.Rxe4#
- 1...Be5!
- threat
- 1.Be5+?
- 1...Kd5
- 2.Bg7#
- 2.Bxh8#
- 2.c4#
- 1...Bxe5!
- 1...Kd5
- 1.Rxh4?
- threat
- 2.Rxe4#
- 2.Qxh8#
- 1...Bg7+
- 2.Qxg7#
- 1...Se6+
- 2.Sxe6#
- 1...Rxe7
- 2.Qd6#
- 1...e2
- 2.Bf2#
- 2.Rxe4#
- 1...Rd5
- 2.Rxe4#
- 1...Rd6
- 2.Rxe4#
- 2.Qxd6#
- 1...Bf6
- 2.Rxe4#
- 2.Qxf6#
- 1...Sf3
- 2.Sxf3#
- 2.Rxe4#
- 1...Sc6
- 2.Se6#
- 2.Rxe4#
- 1...Sf7
- 2.Se6#
- 2.Rxe4#
- 1...Be5!
- threat
- 1.Ra5?
- 1...Bg7+
- 2.Qxg7#
- 1...Se6+
- 2.Sxe6#
- 1...Rxg4
- 2.Qxh8#
- 1...Rxh6
- 2.Rxe4#
- 1...Rxe7
- 2.Qd6#
- 1...e2
- 2.Bf2#
- 1...Rh1
- 2.Rxe4#
- 1...Rh2
- 2.Rxe4#
- 1...Rh3
- 2.Rxe4#
- 1...Rh5
- 2.Rxe4#
- 1...Rd6
- 2.Qxd6#
- 1...Rb7
- 2.Qd6#
- 1...Rc7
- 2.Qd6#
- 1...Be5
- 2.Bxe5#
- 1...Bf6
- 2.Qxf6#
- 1...Se2
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sh3
- 2.Sf3#
- 1...Sc6
- 2.Se6#
- 1...Sb7
- 2.Se6#
- 1...Sf7
- 2.Se6#
- 1...a6
- 2.Qb6#
- 1...Rd5!
- 1...Bg7+
- 1.Qa6?
- threat
- 2.Qd3#
- 2.Qc4#
- 2.c3#
- 1...Se6+
- 2.Sxe6#
- 1...Rxg4
- 2.Qc4#
- 2.c3#
- 1...Be5
- 2.Qd3#
- 2.Qc4#
- 1...e2
- 2.Bf2#
- 2.Qd3#
- 1...Rc7
- 2.Qd3#
- 2.Qd6#
- 1...Se2
- 2.Sf3#
- 2.Qd3#
- 2.Qc4#
- 1...Bg7+!
- threat
- 1.Qc6?
- threat
- 2.Qxe4#
- 2.Qxd7#
- 2.Qc3#
- 2.Qc4#
- 2.Qc5#
- 1...Se6+
- 2.Sxe6#
- 1...Rxg4
- 2.Qxd7#
- 2.Qc3#
- 2.Qc4#
- 2.Qc5#
- 1...Rxe7
- 2.Rd5#
- 2.Qd5#
- 2.Qc3#
- 2.Qc4#
- 2.Qc5#
- 2.Qd6#
- 1...Sxc6
- 2.Se6#
- 1...e2
- 2.Bf2#
- 2.Qxe4#
- 2.Qc3#
- 2.Qc5#
- 1...Rd5
- 2.Rxd5#
- 2.Qxd5#
- 2.Qc3#
- 2.Qc4#
- 1...Rh6
- 2.Rxe4#
- 2.Qxe4#
- 2.Qc3#
- 2.Qc4#
- 2.Qc5#
- 1...Rd6
- 2.Qxe4#
- 2.Qc3#
- 2.Qc4#
- 2.Qc5#
- 2.Qxd6#
- 1...Rb7
- 2.Rd5#
- 2.Qxe4#
- 2.Qd5#
- 2.Qc3#
- 2.Qc4#
- 2.Qc5#
- 2.Qd6#
- 1...Rc7
- 2.Rd5#
- 2.Qxe4#
- 2.Qd5#
- 2.Qd6#
- 1...Be5
- 2.Bxe5#
- 2.Qxe4#
- 2.Qc4#
- 2.Qc5#
- 1...Se2
- 2.Sf3#
- 2.Qxe4#
- 2.Qxd7#
- 2.Qc4#
- 2.Qc5#
- 1...Sb7
- 2.Se6#
- 2.Qxe4#
- 2.Qc3#
- 2.Qc4#
- 1...Sf7
- 2.Se6#
- 2.Qxe4#
- 2.Qc3#
- 2.Qc4#
- 2.Qc5#
- 1...Bg7+!
- threat
- 1.Qe6?
- threat
- 2.Qc4#
- 2.Qxd7#
- 2.Qxe4#
- 1...Sxe6+
- 2.Sxe6#
- 1...Rxg4
- 2.Qc4#
- 2.Qxd7#
- 1...Rxe7
- 2.Rd5#
- 2.Qc4#
- 2.Qd5#
- 2.Qd6#
- 1...e2
- 2.Bf2#
- 2.Qxe4#
- 1...Rd5
- 2.Rxd5#
- 2.Qxd5#
- 2.Qxe4#
- 1...Rh6
- 2.Rxe4#
- 2.Qc4#
- 2.Qxe4#
- 1...Rd6
- 2.Qc4#
- 2.Qxe4#
- 2.Qxd6#
- 1...Rb7
- 2.Rd5#
- 2.Qc4#
- 2.Qd5#
- 2.Qxe4#
- 2.Qd6#
- 1...Rc7
- 2.Rd5#
- 2.Qd5#
- 2.Qxe4#
- 2.Qd6#
- 1...Be5
- 2.Bxe5#
- 2.Qc4#
- 2.Qxe5#
- 1...Sb7
- 2.Qc4#
- 2.Qxe4#
- 1...Sf7
- 2.Qc4#
- 2.Qxe4#
- 1...Bg7+!
- threat
- 1.Be1?
- Keys
- 1.Rb5!
- 1...Bg7+
- 2.Qxg7#
- 1...Se6+
- 2.Sxe6#
- 1...Rxg4
- 2.Qxh8#
- 1...Rxh6
- 2.Rxe4#
- 1...Rxe7
- 2.Qd6#
- 1...e2
- 2.Bf2#
- 1...Rd5
- 2.Rb4#
- 1...Rh1
- 2.Rxe4#
- 1...Rh2
- 2.Rxe4#
- 1...Rh3
- 2.Rxe4#
- 1...Rh5
- 2.Rxe4#
- 1...Rd6
- 2.Qxd6#
- 1...Rb7
- 2.Qd6#
- 1...Rc7
- 2.Qd6#
- 1...Be5
- 2.Bxe5#
- 1...Bf6
- 2.Qxf6#
- 1...Se2
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sh3
- 2.Sf3#
- 1...Sc6
- 2.Se6#
- 1...Sb7
- 2.Se6#
- 1...Sf7
- 2.Se6#
- 1...a5
- 2.Qb6#
- 1...a6
- 2.Qb6#
- 1...Bg7+
- 1.Rb5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(e);N_GUARD::R1(E),XP(d)
- R(e);N_GUARD,N_SPINP(d),XR(E)::QAB(H),XB(i)
- R(e);N_GUARD,XQ(H)::R1(E),XP(d)
- R(g);N_GUARD::QAR2(H),XR(g)
- R(g);N_GUARD::QAR2(H)
- R(g);N_GUARD,XP(I)::QAR2(H)
- B(i);N_GUARD::QAB(H),XB(i)
- B(i);CHECK,N_GUARD::QAB(H),XB(i)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(h);N_GUARD::S(G)
- S(h);CHECK,N_GUARD::S(G),XS(h)
- P(b);OGATEB::B(C)
- P(f);N_GUARD::QAB(H)
- Tries
- Try
- B(C);
- Threat
- B(C)
- Vars
- B(i);CHECK,N_GUARD::QAB(H),XB(i)
- S(h);CHECK,N_GUARD::S(G),XS(h)
- P(b);OGATEB::B(C)
- R(g);N_GUARD::QAR2(H)
- S(a);N_GUARD::S(G)
- Refutation
- B(i);
- Try
- B(C);XR(e)
- Threat
- DUALS(2)
- Vars
- B(i);CHECK,N_GUARD::QAB(H),XB(i)
- S(h);CHECK,N_GUARD::S(G),XS(h)
- R(g);N_GUARD,XP(I)::QAR2(H)
- R(g);::R1(E),XP(d)
- Refutation
- B(i);
- Try
- B(C);CHECK
- Refutation
- B(i);XB(C)
- Try
- R(E);XR(e)
- Threat
- DUALS(2)
- Vars
- B(i);CHECK,N_GUARD::QAB(H),XB(i)
- S(h);CHECK,N_GUARD::S(G),XS(h)
- R(g);N_GUARD,XP(I)::QAR2(H)
- R(g);::R1(E),XP(d)
- Refutation
- B(i);
- Try
- R(F);
- Vars
- B(i);CHECK,N_GUARD::QAB(H),XB(i)
- S(h);CHECK,N_GUARD::S(G),XS(h)
- R(e);N_GUARD,N_SPINP(d),XR(E)::QAB(H),XB(i)
- R(e);N_GUARD,XQ(H)::R1(E),XP(d)
- R(g);N_GUARD,XP(I)::QAR2(H)
- P(b);OGATEB::B(C)
- R(e);N_GUARD::R1(E),XP(d)
- R(g);N_GUARD::QAR2(H),XR(g)
- R(g);N_GUARD::QAR2(H)
- B(i);N_GUARD::B(C),XB(i)
- B(i);N_GUARD::QAB(H),XB(i)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(h);N_GUARD::S(G)
- P(f);N_GUARD::QAB(H)
- Refutation
- R(g);
- Try
- Q(H);
- Threat
- DUALS(3)
- Vars
- S(h);CHECK,N_GUARD::S(G),XS(h)
- Refutation
- B(i);CHECK
- Try
- Q(H);
- Threat
- DUALS(5)
- Vars
- S(h);CHECK,N_GUARD::S(G),XS(h)
- S(h);N_GUARD,XQ(H)::S(G)
- Refutation
- B(i);CHECK
- Try
- Q(H);
- Threat
- DUALS(3)
- Vars
- S(h);CHECK,XQ(H)::S(G),XS(h)
- Refutation
- B(i);CHECK
- Try
- Actual
- R(F);
- Vars
- B(i);CHECK,N_GUARD::QAB(H),XB(i)
- S(h);CHECK,N_GUARD::S(G),XS(h)
- R(e);N_GUARD,N_SPINP(d),XR(E)::QAB(H),XB(i)
- R(e);N_GUARD,XQ(H)::R1(E),XP(d)
- R(g);N_GUARD,XP(I)::QAR2(H)
- P(b);OGATEB::B(C)
- R(g);SBLOCK::R(F)
- R(e);N_GUARD::R1(E),XP(d)
- R(g);N_GUARD::QAR2(H),XR(g)
- R(g);N_GUARD::QAR2(H)
- B(i);N_GUARD::B(C),XB(i)
- B(i);N_GUARD::QAB(H),XB(i)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(h);N_GUARD::S(G)
- P(f);N_GUARD::QAB(H)
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).