MESON Chess Problem Database
Problem Display
PID: 110686 (8/8/p2Np1p1/4NbB1/Bn1pQ1pK/P1knp1P1/1p6/1R1R4 w - - 0 1)
Fjellstrom, Zakarias
Eskilstuna Kuriren, 1954
#2
10 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bxe4
- 2.Sxe4#
- 1...Sc1
- 2.Qxd4#
- 1...Se1
- 2.Qxd4#
- 1...Sf2
- 2.Qxd4#
- 1...Sf4
- 2.Qxd4#
- 1...Sc5
- 2.Qxd4#
- 1...Sxe5
- 2.Qxd4#
- 1...Sa2
- 2.Rxd3#
- 1...Sc2
- 2.Rxd3#
- 1...Sd5
- 2.Rxd3#
- 1...Sc6
- 2.Rxd3#
- 1...e2
- 2.Bd2#
- 1...a5
- 2.Sb5#
- 1...Bxe4
- Tries
- 1.Bxe3?
- threat
- 2.Bd2#
- 2.Bxd4#
- 2.Qxd4#
- 1...Bxe4
- 2.Sxe4#
- 2.Bd2#
- 1...dxe3
- 2.Qc4#
- 1...Sc2
- 2.Bd2#
- 2.Rxd3#
- 1...Sc6
- 2.Bd2#
- 2.Rxd3#
- 1...g5+!
- threat
- 1.Bf4?
- 1...Bxe4
- 2.Sxe4#
- 1...Sxf4
- 2.Qxd4#
- 1...Sxe5
- 2.Qxd4#
- 1...a5
- 2.Sb5#
- 1...Sc1
- 2.Qxd4#
- 1...Se1
- 2.Qxd4#
- 1...Sf2
- 2.Qxd4#
- 1...Sc5
- 2.Qxd4#
- 1...Sa2
- 2.Rxd3#
- 1...Sc2
- 2.Rxd3#
- 1...Sd5
- 2.Rxd3#
- 1...Sc6
- 2.Rxd3#
- 1...e2
- 2.Bd2#
- 1...g5+!
- 1...Bxe4
- 1.Bh6?
- 1...Bxe4
- 2.Sxe4#
- 1...Sxe5
- 2.Qxd4#
- 1...a5
- 2.Sb5#
- 1...Sc1
- 2.Qxd4#
- 1...Se1
- 2.Qxd4#
- 1...Sf2
- 2.Qxd4#
- 1...Sf4
- 2.Qxd4#
- 1...Sc5
- 2.Qxd4#
- 1...Sa2
- 2.Rxd3#
- 1...Sc2
- 2.Rxd3#
- 1...Sd5
- 2.Rxd3#
- 1...Sc6
- 2.Rxd3#
- 1...e2
- 2.Bd2#
- 1...g5+!
- 1...Bxe4
- 1.Qg2?
- 1...Sxe5
- 2.Qxb2#
- 1...a5
- 2.Sb5#
- 1...Be4
- 2.Sxe4#
- 1...Sc1
- 2.Qxb2#
- 1...Se1
- 2.Qxb2#
- 1...Sf4
- 2.Qxb2#
- 1...Sc5
- 2.Qxb2#
- 1...Sa2
- 2.Qc2#
- 1...Sc2
- 2.Qxc2#
- 1...Sd5
- 2.Qc2#
- 1...Sc6
- 2.Qc2#
- 1...e2
- 2.Bd2#
- 1...Sf2!
- 1...Sxe5
- 1.Qc6+?
- 1...Sc5
- 2.Qxc5#
- 1...Sxc6!
- 1...Sc5
- 1.Bxe3?
- Keys
- 1.Qb7!
- 1...Sxe5
- 2.Qxb4#
- 1...a5
- 2.Sb5#
- 1...Be4
- 2.Sxe4#
- 1...Sc1
- 2.Qxb4#
- 1...Se1
- 2.Qxb4#
- 1...Sf2
- 2.Qxb4#
- 1...Sf4
- 2.Qxb4#
- 1...Sc5
- 2.Qxb4#
- 1...Sa2
- 2.Qb3#
- 1...Sc2
- 2.Qb3#
- 1...Sd5
- 2.Qb3#
- 1...Sc6
- 2.Qb3#
- 1...e2
- 2.Bd2#
- 1...Sxe5
- 1.Qb7!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 10
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(h);XQ(F)::S(J),XB(h)
- S(c);::QAB1(F),XP(f)
- S(c);XS(H)::QAB1(F),XP(f)
- S(e);N_GUARD::R1(B),XS(c)
- P(d);OGATE::B(I)
- P(i);N_GUARD::S(J)
- Tries
- Try
- B(I);XP(d)
- Threat
- DUALS(3)
- Vars
- P(f);OGATE,XB(I)::QAR1(F)
- Refutation
- P(k);CHECK
- Try
- B(I);
- Vars
- B(h);XQ(F)::S(J),XB(h)
- S(c);XB(I)::QAB1(F),XP(f)
- S(c);XS(H)::QAB1(F),XP(f)
- P(i);N_GUARD::S(J)
- S(c);::QAB1(F),XP(f)
- S(e);N_GUARD::R1(B),XS(c)
- P(d);OGATE::B(I)
- Refutation
- P(k);CHECK
- Try
- B(I);
- Vars
- B(h);XQ(F)::S(J),XB(h)
- S(c);XS(H)::QAB1(F),XP(f)
- P(i);N_GUARD::S(J)
- S(c);::QAB1(F),XP(f)
- S(e);N_GUARD::R1(B),XS(c)
- P(d);OGATE::B(I)
- Refutation
- P(k);CHECK
- Try
- Q(F);
- Vars
- S(c);N_GUARD,XS(H)::QAB1(F),XP(a)
- P(i);N_GUARD::S(J)
- B(h);N_GUARD::S(J),XB(h)
- S(c);N_GUARD::QAB1(F),XP(a)
- S(e);N_GUARD::QAR1(F)
- S(e);N_GUARD::QAR1(F),XS(e)
- P(d);OGATE::B(I)
- Refutation
- S(c);
- Try
- Q(F);CHECK
- Vars
- S(c);N_GUARD,P_SPINS(c)::QAR2(F),XS(c)
- Refutation
- S(e);XQ(F)
- Try
- Actual
- Q(F);
- Vars
- S(c);N_GUARD,XS(H)::QAB1(F),XS(e)
- P(i);N_GUARD::S(J)
- B(h);N_GUARD::S(J),XB(h)
- S(c);N_GUARD::QAB1(F),XS(e)
- S(e);OGATE::QAR1(F)
- P(d);OGATE::B(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).