MESON Chess Problem Database
Problem Display
PID: 223166 (b4R2/RnP1N3/pk1p4/p2p4/P2K4/8/3B4/8 w - - 0 1)
Block, AB
Nashville Daily American, 1886
#2
7 + 7
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Kxa7
- 2.Sc8#
- 1...Sc5
- 2.c8S#
- 1...Sd8
- 2.c8S#
- 1...Kxa7
- Tries
- 1.Sxd5+?
- 1...Kc6
- 2.c8Q#
- 1...Kxa7!
- 1...Kc6
- 1.Bc1?
- 1...Kxa7
- 2.Sc8#
- 1...Sc5
- 2.c8S#
- 1...Sd8
- 2.c8S#
- 1...Kxc7!
- 1...Kxa7
- 1.Be1?
- 1...Kxa7
- 2.Sc8#
- 1...Sc5
- 2.c8S#
- 1...Sd8
- 2.c8S#
- 1...Kxc7!
- 1...Kxa7
- 1.Bc3?
- 1...Kxa7
- 2.Sc8#
- 1...Sc5
- 2.c8S#
- 1...Sd8
- 2.c8S#
- 1...Kxc7!
- 1...Kxa7
- 1.Be3?
- 1...Kxa7
- 2.Sc8#
- 1...Sc5
- 2.c8S#
- 1...Sd8
- 2.c8S#
- 1...Kxc7!
- 1...Kxa7
- 1.Bf4?
- 1...Kxa7
- 2.Sc8#
- 1...Sc5
- 2.c8S#
- 1...Sd8
- 2.c8S#
- 1...Kxc7!
- 1...Kxa7
- 1.Bxa5+?
- 1...Kxa7
- 2.Sc6#
- 2.Sc8#
- 1...Sxa5
- 2.c8S#
- 1...Kxa5!
- 1...Kxa7
- 1.Bg5?
- 1...Kxa7
- 2.Sc8#
- 1...Sc5
- 2.c8S#
- 1...Sd8
- 2.c8S#
- 1...Kxc7!
- 1...Kxa7
- 1.Bh6?
- 1...Kxa7
- 2.Sc8#
- 1...Sc5
- 2.c8S#
- 1...Sd8
- 2.c8S#
- 1...Kxc7!
- 1...Kxa7
- 1.Rf1?
- 1...Kxa7
- 2.Sc8#
- 1...Sc5
- 2.c8S#
- 1...Sd8
- 2.c8S#
- 1...Kxc7!
- 1...Kxa7
- 1.Rf2?
- 1...Kxa7
- 2.Sc8#
- 1...Sc5
- 2.c8S#
- 1...Sd8
- 2.c8S#
- 1...Kxc7!
- 1...Kxa7
- 1.Rf3?
- 1...Kxa7
- 2.Sc8#
- 1...Sc5
- 2.c8S#
- 1...Sd8
- 2.c8S#
- 1...Kxc7!
- 1...Kxa7
- 1.Rf4?
- 1...Kxa7
- 2.Sc8#
- 1...Sc5
- 2.c8S#
- 1...Sd8
- 2.c8S#
- 1...Kxc7!
- 1...Kxa7
- 1.Rf5?
- 1...Kxa7
- 2.Sc8#
- 1...Sc5
- 2.c8S#
- 1...Sd8
- 2.c8S#
- 1...Kxc7!
- 1...Kxa7
- 1.Rf6?
- 1...Kxa7
- 2.Sc8#
- 1...Sc5
- 2.c8S#
- 1...Sd8
- 2.c8S#
- 1...Kxc7!
- 1...Kxa7
- 1.Rf7?
- 1...Kxa7
- 2.Sc8#
- 1...Sc5
- 2.c8S#
- 1...Sd8
- 2.c8S#
- 1...Kxc7!
- 1...Kxa7
- 1.Rfxa8?
- 1...Sc5
- 2.c8S#
- 1...Sd8
- 2.cxd8Q#
- 2.cxd8B#
- 2.c8S#
- 1...Kxc7!
- 1...Sc5
- 1.Rb8?
- 1...Kxa7
- 2.Sc8#
- 1...Kxc7!
- 1...Kxa7
- 1.Re8?
- 1...Kxa7
- 2.Sc8#
- 1...Sc5
- 2.c8S#
- 1...Sd8
- 2.c8S#
- 1...Kxc7!
- 1...Kxa7
- 1.Rg8?
- 1...Kxa7
- 2.Sc8#
- 1...Sc5
- 2.c8S#
- 1...Sd8
- 2.c8S#
- 1...Kxc7!
- 1...Kxa7
- 1.Rh8?
- 1...Kxa7
- 2.Sc8#
- 1...Sc5
- 2.c8S#
- 1...Sd8
- 2.c8S#
- 1...Kxc7!
- 1...Kxa7
- 1.c8Q?
- 1...Sc5
- 2.Qc7#
- 1...Sd8
- 2.Rxa6#
- 2.Qxa6#
- 2.Qc7#
- 1...Kxa7!
- 1...Sc5
- 1.Sxd5+?
- Keys
- 1.Rd8!
- 1...Kxa7
- 2.Sc8#
- 1...Kxc7
- 2.Bxa5#
- 1...Sxd8
- 2.c8S#
- 1...Sc5
- 2.c8S#
- 1...Kxa7
- 1.Rd8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(d);S_FLIGHT,XR(D)::S(F)
- S(f);::P=S
- Tries
- Try
- S(F);CHECK,XP(b)
- Vars
- K(d);P-FLIGHT::P=Q
- Refutation
- K(d);S_FLIGHT,XR(D)
- Try
- B(A);
- Vars
- K(d);S_FLIGHT,XR(D)::S(F)
- S(f);::P=S
- Refutation
- K(d);P_SPINS(f),S_FLIGHT,XP(E)
- Try
- B(A);
- Vars
- K(d);S_FLIGHT,XR(D)::S(F)
- S(f);::P=S
- Refutation
- K(d);P_SPINS(f),S_FLIGHT,XP(E)
- Try
- B(A);
- Vars
- K(d);S_FLIGHT,XR(D)::S(F)
- S(f);::P=S
- Refutation
- K(d);P_SPINS(f),S_FLIGHT,XP(E)
- Try
- B(A);
- Vars
- K(d);S_FLIGHT,XR(D)::S(F)
- S(f);::P=S
- Refutation
- K(d);P_SPINS(f),S_FLIGHT,XP(E)
- Try
- B(A);
- Vars
- K(d);S_FLIGHT,XR(D)::S(F)
- S(f);::P=S
- Refutation
- K(d);P_SPINP(e),P_SPINS(f),S_FLIGHT,XP(E)
- Try
- B(A);CHECK,XP(a)
- Vars
- S(f);N_GUARD,SBLOCK,XB(A)::P=S
- Refutation
- K(d);P_SPINP(c),S_FLIGHT,XB(A)
- Try
- B(A);
- Vars
- K(d);S_FLIGHT,XR(D)::S(F)
- S(f);::P=S
- Refutation
- K(d);P_SPINS(f),S_FLIGHT,XP(E)
- Try
- B(A);
- Vars
- K(d);S_FLIGHT,XR(D)::S(F)
- S(f);::P=S
- Refutation
- K(d);P_SPINS(f),S_FLIGHT,XP(E)
- Try
- R(G);
- Vars
- K(d);S_FLIGHT,XR(D)::S(F)
- S(f);::P=S
- Refutation
- K(d);P_SPINS(f),S_FLIGHT,XP(E)
- Try
- R(G);
- Vars
- K(d);S_FLIGHT,XR(D)::S(F)
- S(f);::P=S
- Refutation
- K(d);P_SPINS(f),S_FLIGHT,XP(E)
- Try
- R(G);
- Vars
- K(d);S_FLIGHT,XR(D)::S(F)
- S(f);::P=S
- Refutation
- K(d);P_SPINS(f),S_FLIGHT,XP(E)
- Try
- R(G);
- Vars
- K(d);S_FLIGHT,XR(D)::S(F)
- S(f);::P=S
- Refutation
- K(d);P_SPINS(f),S_FLIGHT,XP(E)
- Try
- R(G);
- Vars
- K(d);S_FLIGHT,XR(D)::S(F)
- S(f);::P=S
- Refutation
- K(d);P_SPINS(f),S_FLIGHT,XP(E)
- Try
- R(G);P_PINP(e)
- Vars
- K(d);N_SPINP(e),S_FLIGHT,XR(D)::S(F)
- S(f);::P=S
- Refutation
- K(d);N_SPINP(e),P_SPINS(f),S_FLIGHT,XP(E)
- Try
- R(G);
- Vars
- K(d);S_FLIGHT,XR(D)::S(F)
- S(f);::P=S
- Refutation
- K(d);P_SPINS(f),S_FLIGHT,XP(E)
- Try
- R(G);XB(g)
- Vars
- S(f);::P=S
- Refutation
- K(d);P_SPINS(f),S_FLIGHT,XP(E)
- Try
- R(G);P_PINS(f)
- Vars
- K(d);N_SPINS(f),S_FLIGHT,XR(D)::S(F)
- Refutation
- K(d);S_FLIGHT,XP(E)
- Try
- R(G);
- Vars
- K(d);S_FLIGHT,XR(D)::S(F)
- S(f);::P=S
- Refutation
- K(d);P_SPINS(f),S_FLIGHT,XP(E)
- Try
- R(G);
- Vars
- K(d);S_FLIGHT,XR(D)::S(F)
- S(f);::P=S
- Refutation
- K(d);P_SPINS(f),S_FLIGHT,XP(E)
- Try
- R(G);
- Vars
- K(d);S_FLIGHT,XR(D)::S(F)
- S(f);::P=S
- Refutation
- K(d);P_SPINS(f),S_FLIGHT,XP(E)
- Try
- P(E);
- Vars
- S(f);::QAB1(E)
- Refutation
- K(d);S_FLIGHT,XR(D)
- Try
- Actual
- R(G);
- Vars
- K(d);S_FLIGHT,XR(D)::S(F)
- K(d);P_SPINS(f),S_FLIGHT,XP(E)::B(A),XP(a)
- S(f);XR(G)::P=S
- S(f);::P=S
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).