MESON Chess Problem Database
Problem Display
PID: 250187 (4rb2/2R3pK/2B4n/BNk2nQ1/P2p2pp/1P4q1/2b2N2/8 w - - 0 1)
Keirans, Peteris
3rd HM., Shakhmaty, 1927
#2
9 + 11
| 6490 | yacpdb | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qxf2
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 2.Bb7#
- 2.Ba8#
- 1...Qg1
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 2.Bb7#
- 2.Ba8#
- 1...Qg2
- 2.Bxg2#
- 2.Bf3#
- 2.Be4#
- 1...Qxb3
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 2.Bb7#
- 2.Ba8#
- 1...Qc3
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 2.Bb7#
- 2.Ba8#
- 1...Qd3
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 2.Bb7#
- 2.Ba8#
- 1...Qe3
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 2.Bb7#
- 2.Ba8#
- 1...Qf3
- 2.Bxf3#
- 2.Be4#
- 1...Qh3
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 2.Bb7#
- 2.Ba8#
- 1...Re5
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 2.Bb7#
- 2.Ba8#
- 1...Qxf2
- Tries
- 1.Sd3+?
- 1...Qxd3
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 2.Bb7#
- 2.Ba8#
- 1...Bxd3!
- 1...Qxd3
- 1.Sd3+?
- Keys
- 1.Qc1!
- threat
- 2.Qa3#
- 1...Se3+
- 2.Sd3#
- 1...Sd6+
- 2.Be4#
- 1...Se7+
- 2.Se4#
- 1...Qxc7
- 2.Qxc2#
- 1...Qxb3
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 2.Bb7#
- 2.Ba8#
- 1...Qc3
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 2.Bb7#
- 2.Ba8#
- threat
- 1.Qc1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- Tries
- Try
- S(A);CHECK
- Refutation
- B(a);XS(A)
- Try
- Actual
- Q(F);N_PINS(g),P_PINB(a)
- Threat
- QAB(F)
- Vars
- S(g);CHECK,S_CUTQ(b)::S(A)
- S(g);CHECK,S_CUTQ(b)::R(H)+B(G)
- S(g);CHECK,S_CUTR(j)::S(A)
- Q(b);N_GUARD,XR(H)::QAR(F),XB(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).