MESON Chess Problem Database
Problem Display
PID: 213017 (QBK1b1N1/1Bnp3r/p3P3/4k2r/1P1N2P1/6P1/8/3R4 w - - 0 1)
Sandin, Svante
Stella Polaris, 1967
#2
11 + 7
SOLUTION
- SOUND
- Sets
- 1...Kd6
- 2.Bxc7#
- 1...dxe6
- 2.Sf3#
- 1...Kd6
- Tries
- 1.Bh1?
- threat
- 2.Qd5#
- 1...Kd6
- 2.Bxc7#
- 1...dxe6
- 2.Sf3#
- 1...d5
- 2.Qxd5#
- 1...d6
- 2.Qe4#
- 1...Rxh1!
- threat
- 1.Bf3?
- threat
- 2.Qd5#
- 1...Kd6
- 2.Bxc7#
- 1...d5
- 2.Qxd5#
- 1...d6
- 2.Qe4#
- 1...dxe6!
- threat
- 1.Be4?
- threat
- 2.Qd5#
- 1...Kd6
- 2.Bxc7#
- 1...dxe6
- 2.Sf3#
- 1...d5
- 2.Qxd5#
- 1...d6!
- threat
- 1.Re1+?
- 1...Kd6
- 2.Bxc7#
- 2.Qxa6#
- 1...Kxd4!
- 1...Kd6
- 1.Bh1?
- Keys
- 1.Bg2!
- threat
- 2.Qd5#
- 1...Kd6
- 2.Bxc7#
- 1...dxe6
- 2.Sf3#
- 1...d5
- 2.Qxd5#
- 1...d6
- 2.Qe4#
- threat
- 1.Bg2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- K(a);S_FLIGHT::B(I),XS(d)
- P(e);SBLOCK,XP(F)::S(D)
- Tries
- Try
- B(G);
- Threat
- QAR1(H)
- Vars
- K(a);S_FLIGHT::B(I),XS(d)
- P(e);SBLOCK,XP(F)::S(D)
- P(e);::QAR1(H),XP(e)
- P(e);N_SPINS(d),SBLOCK::QAR1(H)
- Refutation
- R(b);XB(G)
- Try
- B(G);
- Threat
- QAR1(H)
- Vars
- K(a);S_FLIGHT::B(I),XS(d)
- P(e);::QAR1(H),XP(e)
- P(e);N_SPINS(d),SBLOCK::QAR1(H)
- Refutation
- P(e);XP(F)
- Try
- B(G);
- Threat
- QAR1(H)
- Vars
- K(a);S_FLIGHT::B(I),XS(d)
- P(e);SBLOCK,XP(F)::S(D)
- P(e);::QAR1(H),XP(e)
- Refutation
- P(e);N_SPINS(d)
- Try
- R(A);CHECK
- Refutation
- K(a);N_SPINS(d),S_FLIGHT,XS(D)
- Try
- Actual
- B(G);
- Threat
- QAR1(H)
- Vars
- K(a);S_FLIGHT::B(I),XS(d)
- P(e);SBLOCK,XP(F)::S(D)
- P(e);::QAR1(H),XP(e)
- P(e);N_SPINS(d),SBLOCK::QAR1(H)
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).