MESON Chess Problem Database
Problem Display
PID: 36945 (2BRr2B/4p1Qp/2p5/4NP2/3pk1pK/n3p1Pn/4P3/2q2r2 w - - 0 1)
Frei-Schuler, Gottlieb
Neue Zurcher Nachrichten, 1972
#2
9 + 12
| 3690 | Kunstschach in der Schweiz | 1980 |
SOLUTION
- SOUND
- Sets
- 1...d3
- 2.exd3#
- 1...d3
- Tries
- 1.Sd3?
- threat
- 2.Rxd4#
- 2.Qxd4#
- 2.Qe5#
- 1...Rxf5
- 2.Rxd4#
- 2.Qxd4#
- 1...Rxd8
- 2.Qe5#
- 1...e6
- 2.Qe5#
- 1...Qb2
- 2.Sc5#
- 2.Qe5#
- 1...Qa1
- 2.Sc5#
- 2.Qe5#
- 1...Qc3
- 2.Qe5#
- 1...Qc4
- 2.Qe5#
- 1...Qc5
- 2.Sxc5#
- 1...Sc2
- 2.Sc5#
- 2.Qe5#
- 1...Sc4
- 2.Sc5#
- 2.Rxd4#
- 2.Qxd4#
- 1...Sb5
- 2.Qe5#
- 1...c5
- 2.Qe5#
- 1...e5!
- threat
- 1.Sc4?
- threat
- 2.Rxd4#
- 2.Qxd4#
- 2.Qe5#
- 1...Qxc4
- 2.Qe5#
- 1...Rxf5
- 2.Rxd4#
- 2.Qxd4#
- 1...Rxd8
- 2.Qe5#
- 1...Sxc4
- 2.Rxd4#
- 2.Qxd4#
- 1...e6
- 2.Qe5#
- 1...Qb2
- 2.Qe5#
- 1...Qd2
- 2.Qe5#
- 1...Qa1
- 2.Qe5#
- 1...Qd1
- 2.Qe5#
- 1...Qc3
- 2.Qe5#
- 1...Rd1
- 2.Qe5#
- 1...Sc2
- 2.Qe5#
- 1...Sb5
- 2.Qe5#
- 1...d3
- 2.Rd4#
- 2.Qd4#
- 2.Qe5#
- 1...c5
- 2.Qe5#
- 1...e5!
- threat
- 1.Sxg4?
- threat
- 2.Rxd4#
- 2.Qxd4#
- 2.Qe5#
- 1...Rxf5
- 2.Rxd4#
- 2.Qxd4#
- 1...Rxd8
- 2.Qe5#
- 1...e6
- 2.Qe5#
- 1...e5
- 2.Sf6#
- 1...Qb2
- 2.Qe5#
- 1...Qd2
- 2.Qe5#
- 1...Qa1
- 2.Qe5#
- 1...Qd1
- 2.Qe5#
- 1...Qc3
- 2.Qe5#
- 1...Qc4
- 2.Qe5#
- 1...Rd1
- 2.Qe5#
- 1...Sc2
- 2.Qe5#
- 1...Sc4
- 2.Rxd4#
- 2.Qxd4#
- 1...Sb5
- 2.Qe5#
- 1...d3
- 2.Rd4#
- 2.Qd4#
- 2.Qe5#
- 1...c5
- 2.Qe5#
- 1...Qc5!
- threat
- 1.Sd3?
- Keys
- 1.Sd7!
- threat
- 2.Qe5#
- 1...Kd5
- 2.Qxd4#
- 1...Kxf5
- 2.Qxg4#
- 1...Rxf5
- 2.Qxd4#
- 1...e5
- 2.Sf6#
- 1...Qc5
- 2.Sxc5#
- 1...Sc4
- 2.Sc5#
- threat
- 1.Sd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 1
- Sets
- P(f);OGATE::P(A),XP(f)
- Tries
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- R(l);XR(H)::QAR1(F)
- P(j);::QAR1(F)
- Q(a);::QAR1(F)
- Q(a);N_GUARD::S(D),XQ(a)
- S(c);::QAR1(F)
- P(i);::QAR1(F)
- Refutation
- P(j);
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- Q(a);XS(D)::QAR1(F)
- R(l);XR(H)::QAR1(F)
- P(j);::QAR1(F)
- Q(a);::QAR1(F)
- R(b);::QAR1(F)
- S(c);::QAR1(F)
- P(i);::QAR1(F)
- Refutation
- P(j);
- Try
- S(D);XP(h)
- Threat
- DUALS(3)
- Vars
- R(l);XR(H)::QAR1(F)
- P(j);::QAR1(F)
- P(j);N_GUARD,SBLOCK::S(D)
- Q(a);::QAR1(F)
- R(b);::QAR1(F)
- S(c);::QAR1(F)
- P(i);::QAR1(F)
- Refutation
- Q(a);
- Try
- Actual
- S(D);
- Threat
- QAR1(F)
- Vars
- K(g);S_FLIGHT::QAR1(F),XP(f)
- K(g);S_FLIGHT,XP(E)::QAB1(F),XP(h)
- R(b);SBLOCK,XP(E)::QAR1(F),XP(f)
- P(j);N_GUARD,SBLOCK::S(D)
- Q(a);N_GUARD::S(D),XQ(a)
- S(c);S_CUTQ(a)::S(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).