MESON Chess Problem Database
Problem Display
PID: 227768 (8/4N3/8/4p1p1/3k2K1/8/N1Q5/8 w - - 0 1)
Schiffert, Gyorgy
Magyar Sakkvilag, 1926
#2
4 + 3
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Ke3
- 2.Sf5#
- 1...e4
- 2.Qc3#
- 1...Ke3
- Tries
- 1.Kg3?
- 1...Ke3
- 2.Sf5#
- 1...e4
- 2.Qc3#
- 1...g4!
- 1...Ke3
- 1.Kxg5?
- 1...e4
- 2.Qc3#
- 1...Ke3!
- 1...e4
- 1.Sc1?
- 1...Ke3
- 2.Sf5#
- 1...e4!
- 1...Ke3
- 1.Sb4?
- threat
- 2.Sf5#
- 1...Ke3
- 2.Sf5#
- 1...e4!
- threat
- 1.Qb3?
- 1...Kc5
- 2.Qb4#
- 1...e4
- 2.Qc3#
- 1...Ke4!
- 1...Kc5
- 1.Qe4+?
- 1...Kc5
- 2.Qb4#
- 1...Kxe4!
- 1...Kc5
- 1.Kg3?
- Keys
- 1.Qd2+!
- 1...Kc4
- 2.Qd5#
- 1...Ke4
- 2.Sc3#
- 1...Kc5
- 2.Qb4#
- 1...Kc4
- 1.Qd2+!
FEATURES
- Static
- TYPE = CHECKING_KEY
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- K(a);S_FLIGHT::S(D)
- P(b);SBLOCK::QAB1(B)
- Tries
- Try
- K(C);P-FLIGHT
- Vars
- K(a);S_FLIGHT::S(D)
- P(b);SBLOCK::QAB1(B)
- Refutation
- P(c);
- Try
- K(C);P-FLIGHT,XP(c)
- Vars
- P(b);SBLOCK::QAB1(B)
- Refutation
- K(a);S_FLIGHT
- Try
- S(A);
- Vars
- K(a);S_FLIGHT::S(D)
- Refutation
- P(b);
- Try
- S(A);
- Threat
- S(D)
- Vars
- K(a);S_FLIGHT::S(D)
- Refutation
- P(b);
- Try
- Q(B);
- Vars
- K(a);S_FLIGHT::QAB1(B)
- P(b);SBLOCK::QAB1(B)
- Refutation
- K(a);P-FLIGHT
- Try
- Q(B);CHECK
- Vars
- K(a);OGATE,S_FLIGHT::QAB1(B)
- Refutation
- K(a);P-FLIGHT,XQ(B)
- Try
- Actual
- Q(B);CHECK
- Vars
- K(a);OGATE,P-FLIGHT::QAB1(B)
- K(a);P-FLIGHT::S(A)
- K(a);S_FLIGHT::QAB1(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).