MESON Chess Problem Database
Problem Display
PID: 104873 (2K2R2/4B3/8/3kp3/B3p3/2P3p1/5nQ1/3NN3 w - - 0 1)
St Maurice, Ephrem
La Presse, 1932
#2
8 + 5
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sxd1
- 2.Qa2#
- 1...Sh1
- 2.Qa2#
- 1...Sd3
- 2.Qa2#
- 1...Sh3
- 2.Qa2#
- 1...Sg4
- 2.Qa2#
- 1...Sxd1
- Tries
- 1.Kd7?
- threat
- 2.Se3#
- 2.Bb3#
- 1...Sxd1
- 2.Bb3#
- 2.Qa2#
- 1...Sg4
- 2.Bb3#
- 2.Qa2#
- 1...Kc4!
- threat
- 1.Kd8?
- 1...Ke6
- 2.Bb3#
- 1...Sxd1
- 2.Qa2#
- 1...Sh1
- 2.Qa2#
- 1...Sd3
- 2.Qa2#
- 1...Sh3
- 2.Qa2#
- 1...Sg4
- 2.Qa2#
- 1...Kc4!
- 1...Ke6
- 1.Bb5?
- 1...Sxd1
- 2.Qa2#
- 1...Sh1
- 2.Qa2#
- 1...Sd3
- 2.Qa2#
- 1...Sh3
- 2.Qa2#
- 1...Sg4
- 2.Qa2#
- 1...Ke6!
- 1...Sxd1
- 1.Bd7?
- threat
- 2.Se3#
- 1...Sxd1
- 2.Qa2#
- 1...Sg4
- 2.Qa2#
- 1...Kc4!
- threat
- 1.Ba3?
- 1...Ke6
- 2.Bb3#
- 1...Sxd1
- 2.Qa2#
- 1...Sh1
- 2.Qa2#
- 1...Sd3
- 2.Qa2#
- 1...Sh3
- 2.Qa2#
- 1...Sg4
- 2.Qa2#
- 1...Kc4!
- 1...Ke6
- 1.Rxf2?
- 1...Kc4
- 2.Qxe4#
- 1...gxf2
- 2.Qg8#
- 1...Ke6!
- 1...Kc4
- 1.Rf6?
- threat
- 2.Se3#
- 2.Bb3#
- 1...Sxd1
- 2.Bb3#
- 2.Qa2#
- 1...Sg4
- 2.Bb3#
- 2.Qa2#
- 1...Kc4!
- threat
- 1.Rf7?
- 1...Ke6
- 2.Bb3#
- 1...Sxd1
- 2.Qa2#
- 1...Sh1
- 2.Qa2#
- 1...Sd3
- 2.Qa2#
- 1...Sh3
- 2.Qa2#
- 1...Sg4
- 2.Qa2#
- 1...Kc4!
- 1...Ke6
- 1.Qf3?
- threat
- 2.Qf7#
- 1...Kc4
- 2.Qf7#
- 1...Ke6
- 2.Qf7#
- 1...exf3!
- threat
- 1.Kd7?
- Keys
- 1.Bb4!
- 1...Kc4
- 2.Se3#
- 1...Ke6
- 2.Bb3#
- 1...Sxd1
- 2.Qa2#
- 1...Sh1
- 2.Qa2#
- 1...Sd3
- 2.Qa2#
- 1...Sh3
- 2.Qa2#
- 1...Sg4
- 2.Qa2#
- 1...Kc4
- 1.Bb4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- S(a);OGATE,XS(A)::QAB(C)
- S(a);OGATE::QAB(C)
- Tries
- Try
- K(G);S_FLIGHT
- Threat
- DUALS(2)
- Refutation
- K(d);N_SPINP(c),S_FLIGHT
- Try
- K(G);P-FLIGHT
- Vars
- K(d);N_SPINP(c),S_FLIGHT::B(E)
- S(a);OGATE,XS(A)::QAB(C)
- S(a);OGATE::QAB(C)
- Refutation
- K(d);N_SPINP(c),S_FLIGHT
- Try
- B(E);
- Vars
- S(a);OGATE,XS(A)::QAB(C)
- S(a);OGATE::QAB(C)
- Refutation
- K(d);N_SPINP(c),S_FLIGHT
- Try
- B(E);
- Threat
- S(A)
- Vars
- S(a);OGATE,XS(A)::QAB(C)
- S(a);OGATE::QAB(C)
- Refutation
- K(d);N_SPINP(c),S_FLIGHT
- Try
- B(F);
- Vars
- K(d);N_SPINP(c),S_FLIGHT::B(E)
- S(a);OGATE,XS(A)::QAB(C)
- S(a);OGATE::QAB(C)
- Refutation
- K(d);N_SPINP(c),S_FLIGHT
- Try
- R(H);XS(a)
- Vars
- K(d);N_SPINP(c),S_FLIGHT::QAR2(C),XP(c)
- P(b);OGATE,XR(H)::QAB(C)
- Refutation
- K(d);N_SPINP(c),S_FLIGHT
- Try
- R(H);
- Threat
- DUALS(2)
- Refutation
- K(d);N_SPINP(c),S_FLIGHT
- Try
- R(H);
- Vars
- K(d);N_SPINP(c),S_FLIGHT::B(E)
- S(a);OGATE,XS(A)::QAB(C)
- S(a);OGATE::QAB(C)
- Refutation
- K(d);N_SPINP(c),S_FLIGHT
- Try
- Q(C);
- Threat
- QAB(C)
- Vars
- K(d);N_SPINP(c),S_FLIGHT::QAB(C)
- K(d);N_SPINP(c),S_FLIGHT::QAB1(C)
- Refutation
- P(c);N_SPINP(c),XQ(C)
- Try
- Actual
- B(F);
- Vars
- K(d);N_SPINP(c),S_FLIGHT::S(A)
- K(d);N_SPINP(c),S_FLIGHT::B(E)
- S(a);OGATE,XS(A)::QAB(C)
- S(a);OGATE::QAB(C)
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).