MESON Chess Problem Database
Problem Display
PID: 241844 (8/8/8/3Qn3/8/4k1K1/4P3/4R3 w - - 0 1)
Szentgyorgy, Erno
Magyar Sakkvilag, 1930
#2
4 + 2
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sd3
- 2.Qxd3#
- 1...Sf3
- 2.Qd3#
- 2.exf3#
- 1...Sc4
- 2.Qd3#
- 1...Sg4
- 2.Qd3#
- 1...Sc6
- 2.Qd3#
- 1...Sg6
- 2.Qd3#
- 1...Sd7
- 2.Qd3#
- 1...Sf7
- 2.Qd3#
- 1...Sd3
- Tries
- 1.Ra1?
- 1...Sd3
- 2.Qxd3#
- 1...Sf3
- 2.Qd3#
- 1...Sc4
- 2.Qd3#
- 1...Sg4
- 2.Qd3#
- 1...Sc6
- 2.Qd3#
- 1...Sg6
- 2.Qd3#
- 1...Sd7
- 2.Qd3#
- 1...Sf7
- 2.Qd3#
- 1...Kxe2!
- 1...Sd3
- 1.Rb1?
- 1...Sd3
- 2.Qxd3#
- 1...Sf3
- 2.Qd3#
- 1...Sc4
- 2.Qd3#
- 1...Sg4
- 2.Qd3#
- 1...Sc6
- 2.Qd3#
- 1...Sg6
- 2.Qd3#
- 1...Sd7
- 2.Qd3#
- 1...Sf7
- 2.Qd3#
- 1...Kxe2!
- 1...Sd3
- 1.Rc1?
- 1...Sd3
- 2.Qxd3#
- 1...Sf3
- 2.Qd3#
- 1...Sc4
- 2.Qd3#
- 1...Sg4
- 2.Qd3#
- 1...Sc6
- 2.Qd3#
- 1...Sg6
- 2.Qd3#
- 1...Sd7
- 2.Qd3#
- 1...Sf7
- 2.Qd3#
- 1...Kxe2!
- 1...Sd3
- 1.Rf1?
- 1...Sd3
- 2.Qxd3#
- 1...Sf3
- 2.Qd3#
- 1...Sc4
- 2.Qd3#
- 1...Sg4
- 2.Qd3#
- 1...Sc6
- 2.Qd3#
- 1...Sg6
- 2.Qd3#
- 1...Sd7
- 2.Qd3#
- 1...Sf7
- 2.Qd3#
- 1...Kxe2!
- 1...Sd3
- 1.Rg1?
- 1...Sd3
- 2.Qxd3#
- 1...Sf3
- 2.Qd3#
- 1...Sc4
- 2.Qd3#
- 1...Sg4
- 2.Qd3#
- 1...Sc6
- 2.Qd3#
- 1...Sg6
- 2.Qd3#
- 1...Sd7
- 2.Qd3#
- 1...Sf7
- 2.Qd3#
- 1...Kxe2!
- 1...Sd3
- 1.Rh1?
- 1...Sd3
- 2.Qxd3#
- 1...Sf3
- 2.Qd3#
- 1...Sc4
- 2.Qd3#
- 1...Sg4
- 2.Qd3#
- 1...Sc6
- 2.Qd3#
- 1...Sg6
- 2.Qd3#
- 1...Sd7
- 2.Qd3#
- 1...Sf7
- 2.Qd3#
- 1...Kxe2!
- 1...Sd3
- 1.Qc4?
- threat
- 2.Qf4#
- 1...Kd2
- 2.Qc1#
- 1...Sd3
- 2.Qxd3#
- 1...Sg6
- 2.Qd3#
- 1...Sxc4!
- threat
- 1.Qd1?
- 1...Sd3
- 2.Qxd3#
- 1...Sf3
- 2.Qd3#
- 2.exf3#
- 1...Sc4
- 2.Qd3#
- 1...Sg4
- 2.Qd3#
- 1...Sc6
- 2.Qd3#
- 1...Sg6
- 2.Qd3#
- 1...Sd7
- 2.Qd3#
- 1...Sf7
- 2.Qd3#
- 1...Ke4!
- 1...Sd3
- 1.Qc5+?
- 1...Kd2
- 2.Qc1#
- 1...Ke4!
- 1...Kd2
- 1.Qd6?
- 1...Sd3
- 2.Qxd3#
- 1...Sf3
- 2.Qf4#
- 2.Qd3#
- 2.exf3#
- 1...Sc4
- 2.Qf4#
- 2.Qd3#
- 1...Sg4
- 2.Qf4#
- 2.Qd3#
- 1...Sc6
- 2.Qf4#
- 2.Qd3#
- 1...Sg6
- 2.Qd3#
- 1...Sd7
- 2.Qf4#
- 2.Qd3#
- 1...Sf7
- 2.Qf4#
- 2.Qd3#
- 1...Ke4!
- 1...Sd3
- 1.Ra1?
- Keys
- 1.Rd1!
- threat
- 2.Qxe5#
- 1...Kxe2
- 2.Qd2#
- 1...Sd3
- 2.Qxd3#
- 1...Sf3
- 2.Qxf3#
- 2.Qd3#
- 1...Sc4
- 2.Qf3#
- 2.Qd3#
- 1...Sg4
- 2.Qf3#
- 2.Qd3#
- 1...Sc6
- 2.Qf3#
- 2.Qd3#
- 1...Sg6
- 2.Qf3#
- 2.Qd3#
- 1...Sd7
- 2.Qf3#
- 2.Qd3#
- 1...Sf7
- 2.Qf3#
- 2.Qd3#
- threat
- 1.Rd1!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- S(b);N_GUARD::QAR1(D),XS(b)
- S(b);N_GUARD::QAR1(D)
- Tries
- Try
- R(A);
- Vars
- S(b);N_GUARD::QAR1(D),XS(b)
- S(b);N_GUARD::QAR1(D)
- Refutation
- K(a);P-FLIGHT,XP(B)
- Try
- R(A);
- Vars
- S(b);N_GUARD::QAR1(D),XS(b)
- S(b);N_GUARD::QAR1(D)
- Refutation
- K(a);P-FLIGHT,XP(B)
- Try
- R(A);
- Vars
- S(b);N_GUARD::QAR1(D),XS(b)
- S(b);N_GUARD::QAR1(D)
- Refutation
- K(a);P-FLIGHT,XP(B)
- Try
- R(A);
- Vars
- S(b);N_GUARD::QAR1(D),XS(b)
- S(b);N_GUARD::QAR1(D)
- Refutation
- K(a);P-FLIGHT,XP(B)
- Try
- R(A);
- Vars
- S(b);N_GUARD::QAR1(D),XS(b)
- S(b);N_GUARD::QAR1(D)
- Refutation
- K(a);P-FLIGHT,XP(B)
- Try
- R(A);
- Vars
- S(b);N_GUARD::QAR1(D),XS(b)
- S(b);N_GUARD::QAR1(D)
- Refutation
- K(a);P-FLIGHT,XP(B)
- Try
- Q(D);
- Threat
- QAB1(D)
- Vars
- K(a);S_FLIGHT::QAB1(D)
- S(b);N_GUARD::QAR1(D),XS(b)
- S(b);N_GUARD::QAR1(D)
- Refutation
- S(b);XQ(D)
- Try
- Q(D);
- Vars
- S(b);N_GUARD::QAR1(D),XS(b)
- S(b);N_GUARD::QAR1(D)
- Refutation
- K(a);P-FLIGHT
- Try
- Q(D);CHECK
- Vars
- K(a);S_FLIGHT::QAB1(D)
- Refutation
- K(a);P-FLIGHT
- Try
- Q(D);
- Vars
- S(b);N_GUARD::QAR1(D),XS(b)
- S(b);N_GUARD::QAR1(D)
- Refutation
- K(a);P-FLIGHT
- Try
- Actual
- R(A);
- Threat
- QAR2(D),XS(b)
- Vars
- K(a);P-FLIGHT,XP(B)::QAR1(D)
- S(b);N_GUARD::QAR1(D),XS(b)
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).