MESON Chess Problem Database
Problem Display
PID: 201559 (B4br1/B5P1/6Q1/1RpPk2P/8/K5P1/1PP5/5b2 w - - 0 1)
Weiss, Berthold
L'Alfiere di Re, 1922
#2
11 + 5
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...c4+
- 2.d6#
- 1...c4+
- Tries
- 1.Qf7?
- threat
- 2.Qf4#
- 1...Kd4
- 2.Qf4#
- 1...Ke4
- 2.Qf4#
- 1...Kd6
- 2.Bb8#
- 1...c4+!
- threat
- 1.Qg5+?
- 1...Kd4
- 2.Qf4#
- 1...Ke4
- 2.Qf4#
- 1...Kd6!
- 1...Kd4
- 1.Qf6+?
- 1...Ke4
- 2.Qf4#
- 1...Kxf6!
- 1...Ke4
- 1.c3?
- threat
- 2.Qe6#
- 1...c4+
- 2.d6#
- 1...Bh3!
- threat
- 1.gxf8Q?
- threat
- 2.Qf4#
- 2.Qff6#
- 1...Kd4
- 2.Qf4#
- 1...Rxg6
- 2.Qf4#
- 1...Rxf8!
- threat
- 1.Qf7?
- Keys
- 1.Qh6!
- threat
- 2.Qf4#
- 1...c4+
- 2.d6#
- 1...Kd4
- 2.Qf4#
- 1...Ke4
- 2.Qf4#
- 1...Kf5
- 2.Qf4#
- threat
- 1.Qh6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- P(b);CHECK::R(E)+P(F)
- Tries
- Try
- Q(H);
- Threat
- QAB1(H)
- Vars
- K(c);P_SPINP(b),S_FLIGHT::QAR2(H)
- K(c);P-FLIGHT::QAR1(H)
- K(c);S_FLIGHT::B(I)
- Refutation
- P(b);CHECK
- Try
- Q(H);CHECK
- Vars
- K(c);P_SPINP(b),S_FLIGHT::QAR2(H)
- K(c);P-FLIGHT::QAR1(H)
- Refutation
- K(c);S_FLIGHT
- Try
- Q(H);CHECK
- Vars
- K(c);P-FLIGHT::QAR1(H)
- Refutation
- K(c);S_FLIGHT,XQ(H)
- Try
- P(B);
- Threat
- QAR1(H)
- Vars
- P(b);CHECK::R(E)+P(F)
- Refutation
- B(a);
- Try
- P(J);XB(d)
- Threat
- DUALS(2)
- Vars
- K(c);P_SPINP(b),S_FLIGHT::QAR2(J)
- R(e);XQ(H)::QAB1(J)
- Refutation
- R(e);XQ(J)
- Try
- Actual
- Q(H);
- Threat
- QAB1(H)
- Vars
- P(b);CHECK::R(E)+P(F)
- K(c);P_SPINP(b),S_FLIGHT::QAR2(H)
- K(c);P-FLIGHT::QAR1(H)
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).