MESON Chess Problem Database
Problem Display
PID: 108466 (8/1RK2b2/8/3p3r/kN6/8/8/1R6 w - - 0 1)
Iso-Puonti, Yrjo
Uusi Aura, 1937
#2
4 + 4
| 5454 | Near Snap | 2009 |
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ka3
- 2.Ra7#
- 1...Ka5
- 2.Ra1#
- 1...Ka3
- Tries
- 1.Sc2?
- threat
- 2.Ra1#
- 2.Ra7#
- 1...Ka5
- 2.Ra1#
- 2.Ra7#
- 1...Rh1
- 2.Ra7#
- 1...Rh3
- 2.Ra7#
- 1...Rh6
- 2.Ra1#
- 1...d4!
- threat
- 1.Sd3?
- threat
- 2.Ra1#
- 2.Ra7#
- 1...Ka3
- 2.Ra1#
- 2.Ra7#
- 1...Ka5
- 2.Ra1#
- 2.Ra7#
- 1...Rh1
- 2.Ra7#
- 1...Rh2
- 2.Ra7#
- 1...Rh6
- 2.Ra1#
- 1...d4!
- threat
- 1.Sc6?
- threat
- 2.Ra1#
- 2.Ra7#
- 1...Ka3
- 2.Ra1#
- 2.Ra7#
- 1...Rh1
- 2.Ra7#
- 1...Rh2
- 2.Ra7#
- 1...Rh3
- 2.Ra7#
- 1...d4!
- threat
- 1.Sc2?
- Keys
- 1.Sxd5!
- threat
- 2.Ra1#
- 2.Ra7#
- 1...Ka3
- 2.Ra1#
- 2.Ra7#
- 1...Ka5
- 2.Ra1#
- 2.Ra7#
- 1...Rxd5
- 2.Ra1#
- 1...Bxd5
- 2.Ra7#
- 1...Rh1
- 2.Ra7#
- 1...Rh2
- 2.Ra7#
- 1...Rh3
- 2.Ra7#
- 1...Rh6
- 2.Ra1#
- threat
- 1.Sxd5!
This anticipates 86141(1961)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 2
- Sets
- K(a);P-FLIGHT::R(C)
- K(a);P-FLIGHT::R(A)
- Tries
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- R(c);::R(C)
- R(c);SBLOCK::R(C)
- R(c);::R(A)
- Refutation
- P(b);
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- R(c);::R(C)
- R(c);SBLOCK::R(C)
- R(c);::R(A)
- Refutation
- P(b);
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- R(c);::R(C)
- R(c);SBLOCK::R(C)
- Refutation
- P(b);
- Try
- Actual
- S(B);XP(b)
- Threat
- DUALS(2)
- Vars
- R(c);XS(B)::R(A)
- B(d);XS(B)::R(C)
- R(c);::R(C)
- R(c);SBLOCK::R(C)
- R(c);::R(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).