MESON Chess Problem Database
Problem Display
PID: 261673 (2KNN3/8/3P4/3k4/3p1PB1/2np4/3B4/1RR5 w - - 0 1)
Lipton, Michael
The Problemist, 1966
#2
9 + 4
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Ke4
- 2.Sf6#
- 1...Sxb1
- 2.Bf3#
- 1...Sd1
- 2.Bf3#
- 1...Sa2
- 2.Bf3#
- 1...Se2
- 2.Bf3#
- 1...Sa4
- 2.Bf3#
- 1...Se4
- 2.Be6#
- 1...Sb5
- 2.Bf3#
- 1...Ke4
- Tries
- 1.Rb4?
- 1...Ke4
- 2.Sf6#
- 1...Sb1
- 2.Bf3#
- 1...Sd1
- 2.Bf3#
- 1...Sa2
- 2.Bf3#
- 1...Se2
- 2.Bf3#
- 1...Sa4
- 2.Bf3#
- 1...Se4
- 2.Be6#
- 1...Sb5
- 2.Bf3#
- 1...Kc5!
- 1...Ke4
- 1.Rb5+?
- 1...Ke4
- 2.Sf6#
- 2.Re5#
- 1...Sxb5
- 2.Bf3#
- 1...Kc4!
- 1...Ke4
- 1.Rxc3?
- threat
- 2.Bf3#
- 1...Ke4
- 2.Sf6#
- 1...dxc3!
- threat
- 1.Rb4?
- Keys
- 1.Sb7!
- 1...Kc4
- 2.Be6#
- 1...Ke4
- 2.Sf6#
- 1...Kc6
- 2.Bf3#
- 1...Sxb1
- 2.Sf6#
- 1...Sd1
- 2.Sf6#
- 1...Sa2
- 2.Sf6#
- 1...Se2
- 2.Sf6#
- 1...Sa4
- 2.Sf6#
- 1...Se4
- 2.Sc7#
- 1...Sb5
- 2.Sf6#
- 1...Kc4
- 1.Sb7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 7
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- K(d);N_GUARD,S_FLIGHT::S(I)
- S(a);N_GUARD,XR(A)::B(E)
- S(a);N_GUARD::B(E)
- S(a);SBLOCK::B(E)
- Tries
- Try
- R(A);
- Vars
- K(d);N_GUARD,P_SPINP(c),S_FLIGHT::S(I)
- S(a);N_GUARD::B(E)
- S(a);SBLOCK::B(E)
- Refutation
- K(d);P-FLIGHT,P_SPINS(a)
- Try
- R(A);CHECK
- Vars
- S(a);XR(A)::B(E)
- Refutation
- K(d);P_SPINS(a),S_FLIGHT
- Try
- R(B);XS(a)
- Threat
- B(E)
- Vars
- K(d);N_GUARD,S_FLIGHT::S(I)
- Refutation
- P(c);XR(B)
- Try
- Actual
- S(H);
- Vars
- K(d);N_GUARD,P_SPINS(a),S_FLIGHT::B(E)
- K(d);N_GUARD,S_FLIGHT::S(I)
- S(a);XR(A)::S(I)
- S(a);::S(I)
- S(a);SBLOCK::S(I)
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).