MESON Chess Problem Database
Problem Display
PID: 102209 (4n3/8/3pQp2/1p3B2/1P1k1P1B/2n5/1N1P2p1/4K1b1 w - - 0 1)
Eriksson, Finn Olof
Svenska Dagbladet, 1936
#2
8 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bf2+
- 2.Bxf2#
- 1...Bh2
- 2.Bf2#
- 1...Be3
- 2.dxe3#
- 1...Sb1
- 2.Qe4#
- 1...Sd1
- 2.Qe4#
- 1...Sa2
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sd5
- 2.Qe4#
- 1...Sc7
- 2.Bxf6#
- 1...Sg7
- 2.Bxf6#
- 1...d5
- 2.Qb6#
- 1...Bf2+
- Tries
- 1.Sd1?
- threat
- 2.dxc3#
- 1...Bf2+
- 2.Bxf2#
- 1...Sxd1
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sd5
- 2.Qe4#
- 1...Sb1
- 2.Qe4#
- 1...Sa2
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...d5!
- threat
- 1.Sd3?
- 1...Bf2+
- 2.Bxf2#
- 1...Se4
- 2.Qxe4#
- 1...Sd5
- 2.Qe4#
- 1...Bh2
- 2.Bf2#
- 1...Be3
- 2.dxe3#
- 1...Sb1
- 2.Qe4#
- 1...Sd1
- 2.Qe4#
- 1...Sa2
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Sc7
- 2.Bxf6#
- 1...Sg7
- 2.Bxf6#
- 1...d5!
- 1...Bf2+
- 1.Bc2?
- 1...Bf2+
- 2.Bxf2#
- 1...Bh2
- 2.Bf2#
- 1...Be3
- 2.dxe3#
- 1...Sb1
- 2.Qe4#
- 1...Sd1
- 2.Qe4#
- 1...Sa2
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sd5
- 2.Qe4#
- 1...Sc7
- 2.Bxf6#
- 1...Sg7
- 2.Bxf6#
- 1...d5
- 2.Qb6#
- 1...f5!
- 1...Bf2+
- 1.Bd3?
- 1...Bf2+
- 2.Bxf2#
- 1...Bh2
- 2.Bf2#
- 1...Be3
- 2.dxe3#
- 1...Sb1
- 2.Qe4#
- 1...Sd1
- 2.Qe4#
- 1...Sa2
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sd5
- 2.Qe4#
- 1...Sc7
- 2.Bxf6#
- 1...Sg7
- 2.Bxf6#
- 1...d5
- 2.Qb6#
- 1...f5!
- 1...Bf2+
- 1.Bg6?
- 1...Bf2+
- 2.Bxf2#
- 1...Bh2
- 2.Bf2#
- 1...Be3
- 2.dxe3#
- 1...Sb1
- 2.Qe4#
- 1...Sd1
- 2.Qe4#
- 1...Sa2
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sd5
- 2.Qe4#
- 1...Sc7
- 2.Bxf6#
- 1...Sg7
- 2.Bxf6#
- 1...d5
- 2.Qb6#
- 1...f5!
- 1...Bf2+
- 1.Bh7?
- 1...Bf2+
- 2.Bxf2#
- 1...Bh2
- 2.Bf2#
- 1...Be3
- 2.dxe3#
- 1...Sb1
- 2.Qe4#
- 1...Sd1
- 2.Qe4#
- 1...Sa2
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sd5
- 2.Qe4#
- 1...Sc7
- 2.Bxf6#
- 1...Sg7
- 2.Bxf6#
- 1...d5
- 2.Qb6#
- 1...f5!
- 1...Bf2+
- 1.Qxd6+?
- 1...Sd5
- 2.Qc5#
- 1...Sxd6!
- 1...Sd5
- 1.Sd1?
- Keys
- 1.Qb3!
- 1...Bf2+
- 2.Bxf2#
- 1...Bh2
- 2.Bf2#
- 1...Be3
- 2.dxc3#
- 1...Sb1
- 2.Qd3#
- 1...Sd1
- 2.Qd3#
- 1...Sa2
- 2.Qd3#
- 1...Se2
- 2.Qd3#
- 1...Sa4
- 2.Qd3#
- 1...Se4
- 2.Qd3#
- 1...Sd5
- 2.Qd3#
- 1...Sc7
- 2.Bxf6#
- 1...Sg7
- 2.Bxf6#
- 1...d5
- 2.Qxc3#
- 1...Bf2+
- 1.Qb3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 9
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(a);CHECK,N_GUARD::B(F),XB(a)
- B(a);N_GUARD::B(F)
- B(a);OGATE::P(C),XB(a)
- S(c);N_GUARD::QAR1(H)
- S(c);N_GUARD::QAR1(H),XS(c)
- S(h);N_GUARD::B(F),XP(g)
- P(f);OGATE,SBLOCK::QAB(H)
- Tries
- Try
- S(B);
- Threat
- P(C),XS(c)
- Vars
- B(a);CHECK,N_GUARD::B(F),XB(a)
- S(c);N_GUARD,XS(B)::QAR1(H)
- S(c);N_GUARD::QAR1(H),XS(c)
- S(c);N_GUARD::QAR1(H)
- Refutation
- P(f);
- Try
- S(B);
- Vars
- B(a);CHECK,N_GUARD::B(F),XB(a)
- S(c);N_GUARD::QAR1(H),XS(c)
- S(c);N_GUARD::QAR1(H)
- B(a);N_GUARD::B(F)
- B(a);OGATE::P(C),XB(a)
- S(h);N_GUARD::B(F),XP(g)
- Refutation
- P(f);
- Try
- B(G);
- Vars
- B(a);CHECK,N_GUARD::B(F),XB(a)
- B(a);N_GUARD::B(F)
- B(a);OGATE::P(C),XB(a)
- S(c);N_GUARD::QAR1(H)
- S(c);N_GUARD::QAR1(H),XS(c)
- S(h);N_GUARD::B(F),XP(g)
- P(f);OGATE,SBLOCK::QAB(H)
- Refutation
- P(g);
- Try
- B(G);
- Vars
- B(a);CHECK,N_GUARD::B(F),XB(a)
- B(a);N_GUARD::B(F)
- B(a);OGATE::P(C),XB(a)
- S(c);N_GUARD::QAR1(H)
- S(c);N_GUARD::QAR1(H),XS(c)
- S(h);N_GUARD::B(F),XP(g)
- P(f);OGATE,SBLOCK::QAB(H)
- Refutation
- P(g);
- Try
- B(G);
- Vars
- B(a);CHECK,N_GUARD::B(F),XB(a)
- B(a);N_GUARD::B(F)
- B(a);OGATE::P(C),XB(a)
- S(c);N_GUARD::QAR1(H)
- S(c);N_GUARD::QAR1(H),XS(c)
- S(h);N_GUARD::B(F),XP(g)
- P(f);OGATE,SBLOCK::QAB(H)
- Refutation
- P(g);
- Try
- B(G);
- Vars
- B(a);CHECK,N_GUARD::B(F),XB(a)
- B(a);N_GUARD::B(F)
- B(a);OGATE::P(C),XB(a)
- S(c);N_GUARD::QAR1(H)
- S(c);N_GUARD::QAR1(H),XS(c)
- S(h);N_GUARD::B(F),XP(g)
- P(f);OGATE,SBLOCK::QAB(H)
- Refutation
- P(g);
- Try
- Q(H);CHECK,XP(f)
- Vars
- S(c);P_SPINS(c)::QAB1(H)
- Refutation
- S(h);XQ(H)
- Try
- Actual
- Q(H);
- Vars
- B(a);CHECK,N_GUARD::B(F),XB(a)
- B(a);N_GUARD::B(F)
- B(a);SBLOCK::P(C),XS(c)
- S(c);OGATE::QAR1(H)
- S(c);OGATE,SBLOCK::QAR1(H)
- S(h);N_GUARD::B(F),XP(g)
- P(f);SBLOCK::QAB1(H),XS(c)
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).