MESON Chess Problem Database
Problem Display
PID: 261237 (4N3/p4K2/p3p3/Rnk1N2R/2b3Q1/1p4B1/1P3P1p/7B w - - 0 1)
Healey, Frank
The Field, 1886
(First published on Sat Jun 26 1886)
#2
10 + 8
| 15239 | Valois Notebooks | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Kb4
- 2.Sc6#
- 1...Kb6
- 2.Sxc4#
- 1...Bf1
- 2.Sd7#
- 1...Be2
- 2.Sd7#
- 1...Bd3
- 2.Sd7#
- 1...Kb4
- Tries
- 1.Kf6?
- 1...Kb4
- 2.Sc6#
- 1...Kb6
- 2.Sxc4#
- 1...Bf1
- 2.Sd7#
- 1...Be2
- 2.Sd7#
- 1...Bd3
- 2.Sd7#
- 1...Bd5!
- 1...Kb4
- 1.Ke7?
- 1...Kb4
- 2.Sc6#
- 1...Kb6
- 2.Sxc4#
- 1...Bf1
- 2.Sd7#
- 1...Be2
- 2.Sd7#
- 1...Bd3
- 2.Sd7#
- 1...Bd5!
- 1...Kb4
- 1.Kg7?
- 1...Kb4
- 2.Sc6#
- 1...Kb6
- 2.Sxc4#
- 1...Bf1
- 2.Sd7#
- 1...Be2
- 2.Sd7#
- 1...Bd3
- 2.Sd7#
- 1...Bd5!
- 1...Kb4
- 1.Kf8?
- 1...Kb4
- 2.Sc6#
- 1...Kb6
- 2.Sxc4#
- 1...Bf1
- 2.Sd7#
- 1...Be2
- 2.Sd7#
- 1...Bd3
- 2.Sd7#
- 1...Bd5!
- 1...Kb4
- 1.Kg8?
- 1...Kb4
- 2.Sc6#
- 1...Kb6
- 2.Sxc4#
- 1...Bf1
- 2.Sd7#
- 1...Be2
- 2.Sd7#
- 1...Bd3
- 2.Sd7#
- 1...Bd5!
- 1...Kb4
- 1.Sf6?
- 1...Kb4
- 2.Sc6#
- 1...Kb6
- 2.Sxc4#
- 1...Kd6
- 2.Sxc4#
- 1...Bf1
- 2.Sed7#
- 1...Be2
- 2.Sed7#
- 1...Bd3
- 2.Sed7#
- 1...Bd5!
- 1...Kb4
- 1.Bxh2?
- 1...Kb4
- 2.Sc6#
- 1...Kb6
- 2.Sxc4#
- 1...Bf1
- 2.Sd7#
- 1...Be2
- 2.Sd7#
- 1...Bd3
- 2.Sd7#
- 1...Bd5!
- 1...Kb4
- 1.Bh4?
- 1...Kb4
- 2.Sc6#
- 1...Kb6
- 2.Sxc4#
- 1...Bf1
- 2.Sd7#
- 1...Be2
- 2.Sd7#
- 1...Bd3
- 2.Sd7#
- 1...Bd5!
- 1...Kb4
- 1.Rxa6?
- threat
- 2.Sd3#
- 2.Qxc4#
- 1...Kb4
- 2.Sd3#
- 2.Sc6#
- 2.Qxc4#
- 1...Sa3
- 2.Sd3#
- 1...Sd4
- 2.Sd3#
- 1...Bd5
- 2.Sd3#
- 2.Sd7#
- 1...Bf1
- 2.Sd3#
- 2.Sd7#
- 2.Rc6#
- 1...Be2
- 2.Sd3#
- 2.Sd7#
- 2.Rc6#
- 1...Bd3
- 2.Sxd3#
- 2.Sd7#
- 2.Rc6#
- 1...Sd6+!
- threat
- 1.Rg5?
- 1...Kb4
- 2.Sc6#
- 1...Kb6
- 2.Sxc4#
- 1...Bf1
- 2.Sd7#
- 1...Be2
- 2.Sd7#
- 1...Bd3
- 2.Sd7#
- 1...Bd5!
- 1...Kb4
- 1.Qd4+?
- 1...Kb4
- 2.Sc6#
- 1...Kxd4!
- 1...Kb4
- 1.Qe4?
- 1...Kb4
- 2.Sc6#
- 1...Kb6
- 2.Sxc4#
- 1...Bf1
- 2.Sd7#
- 1...Be2
- 2.Sd7#
- 1...Bd3
- 2.Sd7#
- 1...Bd5!
- 1...Kb4
- 1.Qf4?
- 1...Kb4
- 2.Sc6#
- 1...Kb6
- 2.Sxc4#
- 1...Bf1
- 2.Sd7#
- 1...Be2
- 2.Sd7#
- 1...Bd3
- 2.Sd7#
- 1...Bd5!
- 1...Kb4
- 1.Qh4?
- 1...Kb4
- 2.Sc6#
- 1...Kb6
- 2.Sxc4#
- 1...Bf1
- 2.Sd7#
- 1...Be2
- 2.Sd7#
- 1...Bd3
- 2.Sd7#
- 1...Bd5!
- 1...Kb4
- 1.Kf6?
- Keys
- 1.Bf4!
- 1...Kb4
- 2.Sc6#
- 1...Kd4
- 2.Be3#
- 1...Kb6
- 2.Sxc4#
- 1...Bd5
- 2.Be3#
- 1...Bf1
- 2.Be3#
- 1...Be2
- 2.Be3#
- 1...Bd3
- 2.Be3#
- 1...Kb4
- 1.Bf4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 3
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- K(e);N_GUARD,N_SPINS(d),P_SPINB(c),S_CUTP(g),S_FLIGHT::S(G)
- K(e);N_GUARD,N_SPINS(d),S_CUTP(g),S_FLIGHT::S(G),XB(c)
- B(c);::R(H)+S(G),DCHECK
- Tries
- Try
- K(I);P-FLIGHT
- Vars
- K(e);N_GUARD,N_SPINS(d),P_SPINB(c),S_CUTP(g),S_FLIGHT::S(G)
- K(e);N_GUARD,N_SPINS(d),S_CUTP(g),S_FLIGHT::S(G),XB(c)
- B(c);::R(H)+S(G),DCHECK
- Refutation
- B(c);
- Try
- K(I);P-FLIGHT
- Vars
- K(e);N_GUARD,N_SPINS(d),P_SPINB(c),S_CUTP(g),S_FLIGHT::S(G)
- K(e);N_GUARD,N_SPINS(d),S_CUTP(g),S_FLIGHT::S(G),XB(c)
- B(c);::R(H)+S(G),DCHECK
- Refutation
- B(c);
- Try
- K(I);P-FLIGHT
- Vars
- K(e);N_GUARD,N_SPINS(d),P_SPINB(c),S_CUTP(g),S_FLIGHT::S(G)
- K(e);N_GUARD,N_SPINS(d),S_CUTP(g),S_FLIGHT::S(G),XB(c)
- B(c);::R(H)+S(G),DCHECK
- Refutation
- B(c);
- Try
- K(I);P-FLIGHT
- Vars
- K(e);N_GUARD,N_SPINS(d),P_SPINB(c),S_CUTP(g),S_FLIGHT::S(G)
- K(e);N_GUARD,N_SPINS(d),S_CUTP(g),S_FLIGHT::S(G),XB(c)
- B(c);::R(H)+S(G),DCHECK
- Refutation
- B(c);
- Try
- K(I);S_FLIGHT
- Vars
- K(e);N_GUARD,N_SPINS(d),P_SPINB(c),S_CUTP(g),S_FLIGHT::S(G)
- K(e);N_GUARD,N_SPINS(d),S_CUTP(g),S_FLIGHT::S(G),XB(c)
- B(c);::R(H)+S(G),DCHECK
- Refutation
- B(c);
- Try
- S(J);
- Vars
- K(e);N_GUARD,N_SPINS(d),P_SPINB(c),S_CUTP(g),S_FLIGHT::S(G)
- K(e);N_GUARD,N_SPINS(d),S_CUTP(g),S_FLIGHT::S(G),XB(c)
- K(e);N_GUARD,N_SPINS(d),S_FLIGHT::B(D)+S(G),DCHECK,XB(c)
- B(c);::R(H)+S(G),DCHECK
- Refutation
- B(c);
- Try
- B(D);XP(a)
- Vars
- K(e);N_GUARD,N_SPINS(d),P_SPINB(c),S_CUTP(g),S_FLIGHT::S(G)
- K(e);N_GUARD,N_SPINS(d),S_CUTP(g),S_FLIGHT::S(G),XB(c)
- B(c);::R(H)+S(G),DCHECK
- Refutation
- B(c);
- Try
- B(D);
- Vars
- K(e);N_GUARD,N_SPINS(d),P_SPINB(c),S_CUTP(g),S_FLIGHT::S(G)
- K(e);N_GUARD,N_SPINS(d),S_CUTP(g),S_FLIGHT::S(G),XB(c)
- B(c);::R(H)+S(G),DCHECK
- Refutation
- B(c);
- Try
- R(F);N_PINS(d),XP(f)
- Threat
- DUALS(2)
- Vars
- S(d);::R(H)+S(G),DCHECK
- Refutation
- S(d);CHECK
- Try
- R(H);
- Vars
- K(e);N_GUARD,N_SPINS(d),P_SPINB(c),S_CUTP(g),S_FLIGHT::S(G)
- K(e);N_GUARD,N_SPINS(d),S_CUTP(g),S_FLIGHT::S(G),XB(c)
- B(c);::R(H)+S(G),DCHECK
- Refutation
- B(c);
- Try
- Q(E);CHECK
- Vars
- K(e);N_SPINS(d),P_SPINB(c),S_FLIGHT::S(G)
- Refutation
- K(e);N_SPINS(d),S_FLIGHT,XQ(E)
- Try
- Q(E);
- Vars
- K(e);N_GUARD,N_SPINS(d),P_SPINB(c),S_CUTP(g),S_FLIGHT::S(G)
- K(e);N_GUARD,N_SPINS(d),S_CUTP(g),S_FLIGHT::S(G),XB(c)
- B(c);::R(H)+S(G),DCHECK
- Refutation
- B(c);
- Try
- Q(E);
- Vars
- K(e);N_GUARD,N_SPINS(d),P_SPINB(c),S_CUTP(g),S_FLIGHT::S(G)
- K(e);N_GUARD,N_SPINS(d),S_CUTP(g),S_FLIGHT::S(G),XB(c)
- B(c);::R(H)+S(G),DCHECK
- Refutation
- B(c);
- Try
- Q(E);
- Vars
- K(e);N_GUARD,N_SPINS(d),P_SPINB(c),S_CUTP(g),S_FLIGHT::S(G)
- K(e);N_GUARD,N_SPINS(d),S_CUTP(g),S_FLIGHT::S(G),XB(c)
- B(c);::R(H)+S(G),DCHECK
- Refutation
- B(c);
- Try
- Actual
- B(D);
- Vars
- K(e);N_GUARD,N_SPINS(d),S_CUTB(c),S_CUTP(g),S_FLIGHT::S(G)
- K(e);N_GUARD,N_SPINS(d),S_FLIGHT::QAR(E)+B(D),DCHECK
- K(e);N_GUARD,N_SPINS(d),S_CUTP(g),S_FLIGHT::S(G),XB(c)
- B(c);::B(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).