MESON Chess Problem Database
Problem Display
PID: 190869 (2R4K/8/4Q3/p1N4p/3k4/1p5r/2b5/4B3 w - - 0 1)
Lindstrom, Ismo
1st Prize, Pohjonen JT, 1983
#2
5 + 6
| 117 | Suomen Shakki | 1983 |
| 5454 | Near Snap | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rd3
- 2.Qe4#
- 1...Bd1
- 2.Qe4#
- 1...Bd3
- 2.Sxb3#
- 1...Be4
- 2.Qxe4#
- 1...Rd3
- Tries
- 1.Sa4?
- threat
- 2.Rd8#
- 1...Kd3
- 2.Rd8#
- 1...Be4!
- threat
- 1.Sa6?
- threat
- 2.Rd8#
- 1...Kd3
- 2.Rd8#
- 1...Be4!
- threat
- 1.Sb7?
- threat
- 2.Rd8#
- 1...Kd3
- 2.Rd8#
- 1...Be4!
- threat
- 1.Bb4?
- threat
- 2.Rd8#
- 1...Be4
- 2.Qxe4#
- 1...axb4!
- threat
- 1.Sa4?
- Keys
- 1.Sd3!
- threat
- 2.Rd8#
- 1...Kxd3
- 2.Rd8#
- 1...Rxd3
- 2.Rc4#
- 1...Bxd3
- 2.Bc3#
- threat
- 1.Sd3!
Anticipated by 52960(1950/I)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- R(c);S_CUTB(a)::QAR1(C)
- B(a);N_GUARD::QAR1(C)
- B(a);N_GUARD,SBLOCK,S_CUTR(c)::S(B),XP(b)
- B(a);N_GUARD::QAR1(C),XB(a)
- Tries
- Try
- S(B);
- Threat
- R(D)
- Vars
- K(d);P-FLIGHT::R(D)
- Refutation
- B(a);
- Try
- S(B);
- Threat
- R(D)
- Vars
- K(d);P-FLIGHT::R(D)
- Refutation
- B(a);
- Try
- S(B);
- Threat
- R(D)
- Vars
- K(d);P-FLIGHT::R(D)
- Refutation
- B(a);
- Try
- B(A);
- Threat
- R(D)
- Vars
- B(a);N_GUARD::QAR1(C),XB(a)
- Refutation
- P(e);XB(A)
- Try
- Actual
- S(B);
- Threat
- R(D)
- Vars
- K(d);P-FLIGHT,XS(B)::R(D)
- R(c);SBLOCK,XS(B)::R1(D)
- B(a);SBLOCK,XS(B)::B(A)
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).