MESON Chess Problem Database
Problem Display
PID: 273500 (3K3Q/B1RNp3/3r2p1/8/2p1P3/3k1B2/1P2R3/1n6 w - - 0 1)
Ekestubbe, Gustav Adolf
Schackvarlden, 1937
#2
9 + 6
| 15601 | Albrecht-Leiss-Degener Collection | 2023 |
SOLUTION
- SOUND
- Sets
- 1...Rd4
- 2.Qxd4#
- 1...Ra6
- 2.Sc5#
- 2.Se5#
- 2.Qd4#
- 1...Rb6
- 2.Sc5#
- 1...Rc6
- 2.Se5#
- 2.Qd4#
- 1...Re6
- 2.Sc5#
- 2.Qd4#
- 1...Rf6
- 2.Se5#
- 1...Rxd7+
- 2.Rxd7#
- 1...Sd2
- 2.Qc3#
- 1...Sa3
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Rd4
- Tries
- 1.Kc8?
- threat
- 2.Sc5#
- 2.Se5#
- 1...Rxd7
- 2.Rxd7#
- 1...Sd2
- 2.Qc3#
- 1...Rb6
- 2.Sc5#
- 1...Rc6
- 2.Se5#
- 2.Qd4#
- 1...Re6
- 2.Sc5#
- 2.Qd4#
- 1...Rf6
- 2.Se5#
- 1...c3
- 2.Se5#
- 1...e5
- 2.Sxe5#
- 1...Rd5!
- threat
- 1.Ke8?
- threat
- 2.Sc5#
- 2.Se5#
- 1...Rxd7
- 2.Rxd7#
- 1...Sd2
- 2.Qc3#
- 1...Rb6
- 2.Sc5#
- 1...Rc6
- 2.Se5#
- 2.Qd4#
- 1...Re6
- 2.Sc5#
- 2.Qd4#
- 1...Rf6
- 2.Se5#
- 1...c3
- 2.Se5#
- 1...e5
- 2.Sxe5#
- 1...Rd5!
- threat
- 1.Rd2+?
- 1...Sxd2
- 2.Qc3#
- 1...Kxd2!
- 1...Sxd2
- 1.Qe5?
- 1...Rxd7+
- 2.Rxd7#
- 1...Sd2
- 2.Qc3#
- 1...Rd5
- 2.Qxd5#
- 1...Rd4
- 2.Qxd4#
- 1...Ra6
- 2.Sc5#
- 2.Qd4#
- 2.Qd5#
- 1...Rb6
- 2.Sc5#
- 2.Qd5#
- 1...Rc6
- 2.Qd4#
- 2.Qd5#
- 1...Re6
- 2.Sc5#
- 2.Qd4#
- 2.Qd5#
- 1...Rf6
- 2.Sc5#
- 2.Qd4#
- 2.Qd5#
- 1...Sa3
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...c3
- 2.Qb5#
- 1...e6
- 2.Qxd6#
- 1...g5!
- 1...Rxd7+
- 1.Qh6?
- threat
- 2.Qe3#
- 1...Rxd7+
- 2.Rxd7#
- 1...Sd2
- 2.Rxd2#
- 2.Qxd2#
- 1...g5!
- threat
- 1.Kc8?
- Keys
- 1.Bg4!
- threat
- 2.Qh3#
- 1...Rxd7+
- 2.Rxd7#
- 1...Sd2
- 2.Qc3#
- 1...Rb6
- 2.Sc5#
- 1...Rf6
- 2.Se5#
- threat
- 1.Bg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 3
- Sets
- R(d);N_GUARD::QAR1(I),XR(d)
- R(d);N_PINS(G)::S(G)
- R(d);CHECK,OGATE,XS(G)::R(F),XR(d)
- S(a);N_GUARD::QAR1(I)
- S(a);N_GUARD::QAR1(I),XS(a)
- Tries
- Try
- K(H);N_SPINS(G),P-FLIGHT
- Threat
- DUALS(2)
- Vars
- R(d);OGATE,XS(G)::R(F),XR(d)
- S(a);N_GUARD::QAR1(I)
- R(d);::S(G)
- P(c);::S(G)
- P(f);::S(G),XP(f)
- Refutation
- R(d);
- Try
- K(H);N_SPINS(G),P-FLIGHT
- Threat
- DUALS(2)
- Vars
- R(d);OGATE,XS(G)::R(F),XR(d)
- S(a);N_GUARD::QAR1(I)
- R(d);::S(G)
- P(c);::S(G)
- P(f);::S(G),XP(f)
- Refutation
- R(d);
- Try
- R(B);CHECK
- Vars
- S(a);XR(B)::QAR1(I)
- Refutation
- K(b);P-FLIGHT,XR(B)
- Try
- Q(I);
- Vars
- R(d);CHECK,OGATE,XS(G)::R(F),XR(d)
- S(a);N_GUARD::QAR1(I)
- R(d);N_GUARD::QAR2(I),XR(d)
- R(d);N_GUARD::QAR1(I),XR(d)
- S(a);N_GUARD::QAR1(I),XS(a)
- P(c);OGATEB::QAB(I)
- P(f);N_GUARD::QAR(I),XR(d)
- Refutation
- P(e);
- Try
- Q(I);
- Threat
- QAR1(I)
- Vars
- R(d);CHECK,OGATE,XS(G)::R(F),XR(d)
- Refutation
- P(e);
- Try
- Actual
- B(C);
- Threat
- QAR(I)
- Vars
- R(d);CHECK,OGATE,XS(G)::R(F),XR(d)
- S(a);N_GUARD::QAR1(I)
- R(d);N_PINS(G)::S(G)
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).