MESON Chess Problem Database
Problem Display
PID: 102207 (8/8/3Q3p/2N3nP/8/2P1kpR1/2n1P3/5K2 w - - 0 1)
Eriksson, Finn Olof
Svenska Dagbladet, 1934
#2
7 + 5
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sa1
- 2.Qd4#
- 1...Se1
- 2.Qd4#
- 1...Sa3
- 2.Qd4#
- 1...Sb4
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sh3
- 2.Rxf3#
- 1...Se4
- 2.Rxf3#
- 1...Se6
- 2.Rxf3#
- 1...Sf7
- 2.Rxf3#
- 1...Sh7
- 2.Rxf3#
- 1...Sa1
- Tries
- 1.Rh3?
- 1...Sd4
- 2.Qxd4#
- 1...Sa1
- 2.Qd4#
- 1...Se1
- 2.Qd4#
- 1...Sa3
- 2.Qd4#
- 1...Sb4
- 2.Qd4#
- 1...Se4
- 2.Rxf3#
- 1...Se6
- 2.Rxf3#
- 1...Sf7
- 2.Rxf3#
- 1...Sh7
- 2.Rxf3#
- 1...Sxh3!
- 1...Sd4
- 1.Rg4?
- threat
- 2.Qf4#
- 2.Qd3#
- 1...Sd4
- 2.Qf4#
- 2.Qxd4#
- 1...Sh3
- 2.Re4#
- 2.Qd3#
- 1...Se1
- 2.Qf4#
- 2.Qd4#
- 1...Sb4
- 2.Qf4#
- 2.Qd4#
- 1...Se6
- 2.Re4#
- 2.Qd3#
- 1...fxe2+!
- threat
- 1.Qd1?
- threat
- 2.Qc1#
- 1...Se4
- 2.Rxf3#
- 1...Kf4!
- threat
- 1.Qd5?
- 1...Sd4
- 2.Qxd4#
- 1...Sh3
- 2.Rxf3#
- 1...Sa1
- 2.Qd4#
- 1...Se1
- 2.Qd4#
- 1...Sa3
- 2.Qd4#
- 1...Sb4
- 2.Qd4#
- 1...Se4
- 2.Rxf3#
- 1...Se6
- 2.Rxf3#
- 1...Sf7
- 2.Rxf3#
- 1...Sh7
- 2.Rxf3#
- 1...Kf4!
- 1...Sd4
- 1.Qxh6?
- threat
- 2.Qxg5#
- 1...Kf4
- 2.Qxg5#
- 1...Kd2!
- threat
- 1.Qd7?
- 1...Sd4
- 2.Qxd4#
- 1...Sh3
- 2.Rxf3#
- 1...Sa1
- 2.Qd4#
- 1...Se1
- 2.Qd4#
- 1...Sa3
- 2.Qd4#
- 1...Sb4
- 2.Qd4#
- 1...Se4
- 2.Rxf3#
- 1...Se6
- 2.Rxf3#
- 1...Sf7
- 2.Rxf3#
- 1...Sh7
- 2.Rxf3#
- 1...Kf4!
- 1...Sd4
- 1.Qd8?
- 1...Sd4
- 2.Qxd4#
- 1...Sh3
- 2.Rxf3#
- 1...Sa1
- 2.Qd4#
- 1...Se1
- 2.Qd4#
- 1...Sa3
- 2.Qd4#
- 1...Sb4
- 2.Qd4#
- 1...Se4
- 2.Rxf3#
- 1...Se6
- 2.Rxf3#
- 1...Sf7
- 2.Rxf3#
- 1...Sh7
- 2.Rxf3#
- 1...Kf4!
- 1...Sd4
- 1.Rh3?
- Keys
- 1.exf3!
- 1...Sxf3
- 2.Qxh6#
- 1...Sd4
- 2.Qxd4#
- 1...Sh3
- 2.f4#
- 1...Sa1
- 2.Qd4#
- 1...Se1
- 2.Qd4#
- 1...Sa3
- 2.Qd4#
- 1...Sb4
- 2.Qd4#
- 1...Se4
- 2.fxe4#
- 1...Se6
- 2.f4#
- 1...Sf7
- 2.f4#
- 1...Sh7
- 2.f4#
- 1...Sxf3
- 1.exf3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 5
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::QAB1(G)
- S(a);N_GUARD::QAB1(G),XS(a)
- S(d);N_GUARD::R1(D),XP(c)
- Tries
- Try
- R(D);
- Vars
- S(a);N_GUARD::QAB1(G),XS(a)
- S(a);N_GUARD::QAB1(G)
- S(d);N_GUARD::R1(D),XP(c)
- Refutation
- S(d);N_SPINP(c),XR(D)
- Try
- R(D);N_PINP(c)
- Threat
- DUALS(2)
- Refutation
- P(c);CHECK,XP(B)
- Try
- Q(G);
- Threat
- QAB(G)
- Vars
- S(d);N_GUARD::R1(D),XP(c)
- Refutation
- K(b);N_SPINP(c),S_FLIGHT
- Try
- Q(G);
- Vars
- S(a);N_GUARD::QAB1(G),XS(a)
- S(d);N_GUARD::R1(D),XP(c)
- S(a);N_GUARD::QAB1(G)
- Refutation
- K(b);N_SPINP(c),S_FLIGHT
- Try
- Q(G);P_PINS(d),XP(e)
- Threat
- QAB(G),XS(d)
- Vars
- K(b);N_SPINP(c),S_FLIGHT::QAB1(G),XS(d)
- Refutation
- K(b);N_SPINP(c),S_FLIGHT
- Try
- Q(G);
- Vars
- S(a);N_GUARD::QAB1(G),XS(a)
- S(d);N_GUARD::R1(D),XP(c)
- S(a);N_GUARD::QAB1(G)
- Refutation
- K(b);N_SPINP(c),S_FLIGHT
- Try
- Q(G);
- Vars
- S(a);N_GUARD::QAB1(G),XS(a)
- S(d);N_GUARD::R1(D),XP(c)
- S(a);N_GUARD::QAB1(G)
- Refutation
- K(b);N_SPINP(c),S_FLIGHT
- Try
- Actual
- P(B);XP(c)
- Vars
- S(d);OGATEB,P_SPINS(d),XP(B)::QAB(G),XP(e)
- S(a);N_GUARD::QAB1(G),XS(a)
- S(d);N_GUARD::R(D)+P(B)
- S(a);N_GUARD::QAB1(G)
- S(d);OGATE::R(D)+P(B),XS(d)
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).