MESON Chess Problem Database
Problem Display
PID: 43588 (8/Q7/2p1nB2/2p1P3/3kNR2/8/1PP2K2/1B6 w - - 0 1)
Braune, Robert
The Westminster Papers, 1876
#2
9 + 4
SOLUTION
- SOUND
- Sets
- 1...Kd5
- 2.Sc3#
- 1...Sg5
- 2.Qxc5#
- 1...Sc7
- 2.Sc3#
- 2.Qxc5#
- 1...Sg7
- 2.Sc3#
- 2.Qxc5#
- 1...Sd8
- 2.Sc3#
- 2.Qxc5#
- 1...Sf8
- 2.Sc3#
- 2.Qxc5#
- 1...Kd5
- Tries
- 1.Sd2+?
- 1...Kd5
- 2.Qd7#
- 2.c4#
- 1...Sxf4!
- 1...Kd5
- 1.Sg3+?
- 1...Kd5
- 2.Qd7#
- 2.c4#
- 1...Sxf4!
- 1...Kd5
- 1.Sxc5+?
- 1...Kd5
- 2.Ba2#
- 2.c4#
- 1...Sxf4!
- 1...Kd5
- 1.Sg5+?
- 1...Kd5
- 2.Qd7#
- 2.c4#
- 1...Sxf4!
- 1...Kd5
- 1.Sd6+?
- 1...Kd5
- 2.c4#
- 1...Sxf4!
- 1...Kd5
- 1.Ba2?
- threat
- 2.Qd7#
- 1...Sc7
- 2.Sd2#
- 2.Sc3#
- 2.Sg3#
- 2.Sxc5#
- 2.Sg5#
- 2.Sd6#
- 2.Qxc5#
- 2.e6#
- 1...Sf8
- 2.Sd2#
- 2.Sc3#
- 2.Sg3#
- 2.Sxc5#
- 2.Sg5#
- 2.Sd6#
- 2.Qxc5#
- 2.e6#
- 1...Sxf4!
- threat
- 1.Qa4+?
- 1...Kd5
- 2.Sc3#
- 1...c4!
- 1...Kd5
- 1.b3?
- threat
- 2.Qd7#
- 1...Kd5
- 2.Sc3#
- 2.Qd7#
- 1...Sc7
- 2.Qxc5#
- 1...Sf8
- 2.Qxc5#
- 1...Sxf4!
- threat
- 1.c4?
- 1...Sxf4
- 2.Qxc5#
- 1...Sg5
- 2.Sxg5#
- 2.Qxc5#
- 1...Sc7
- 2.Sd2#
- 2.Sc3#
- 2.Sg3#
- 2.Sxc5#
- 2.Sg5#
- 2.Sd6#
- 2.Qxc5#
- 1...Sg7
- 2.Sd2#
- 2.Sc3#
- 2.Sg3#
- 2.Sxc5#
- 2.Sg5#
- 2.Sd6#
- 2.Qxc5#
- 1...Sd8
- 2.Sd2#
- 2.Sc3#
- 2.Sg3#
- 2.Sxc5#
- 2.Sg5#
- 2.Sd6#
- 2.Qxc5#
- 1...Sf8
- 2.Sd2#
- 2.Sc3#
- 2.Sg3#
- 2.Sxc5#
- 2.Sg5#
- 2.Sd6#
- 2.Qxc5#
- 1...Kxc4!
- 1...Sxf4
- 1.Sd2+?
- Keys
- 1.Qf7!
- 1...Kc4
- 2.Sc3#
- 1...Kd5
- 2.Sc3#
- 1...Sxf4
- 2.c3#
- 1...c4
- 2.Qd7#
- 1...Sg5
- 2.Sxg5#
- 2.c3#
- 1...Sc7
- 2.Sd2#
- 2.Sc3#
- 2.Sg3#
- 2.Sg5#
- 2.Sd6#
- 2.c3#
- 1...Sg7
- 2.Sd2#
- 2.Sc3#
- 2.Sg3#
- 2.Sg5#
- 2.Sd6#
- 2.c3#
- 1...Sd8
- 2.Sd2#
- 2.Sc3#
- 2.Sg3#
- 2.Sg5#
- 2.Sd6#
- 2.c3#
- 1...Sf8
- 2.Sd2#
- 2.Sc3#
- 2.Sg3#
- 2.Sg5#
- 2.Sd6#
- 2.c3#
- 1...Kc4
- 1.Qf7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- K(a);N_SPINP(b),P-FLIGHT::S(E)
- S(d);N_GUARD::QAB1(I),XP(b)
- Tries
- Try
- S(E);CHECK
- Refutation
- S(d);XR(F)
- Try
- S(E);CHECK
- Refutation
- S(d);XR(F)
- Try
- S(E);CHECK,XP(b)
- Refutation
- S(d);XR(F)
- Try
- S(E);CHECK
- Refutation
- S(d);XR(F)
- Try
- S(E);CHECK
- Vars
- K(a);N_SPINP(b),P-FLIGHT::P(C)
- Refutation
- S(d);XR(F)
- Try
- B(A);
- Threat
- QAR(I)
- Refutation
- S(d);XR(F)
- Try
- Q(I);CHECK,N_PINP(b)
- Vars
- K(a);P-FLIGHT::S(E)
- Refutation
- P(b);P_SPINP(b)
- Try
- P(B);
- Threat
- QAR(I)
- Vars
- S(d);N_GUARD::QAB1(I),XP(b)
- Refutation
- S(d);XR(F)
- Try
- P(C);
- Vars
- S(d);N_GUARD,XR(F)::QAB1(I),XP(b)
- Refutation
- K(a);N_SPINP(b),P-FLIGHT,XP(C)
- Try
- Actual
- Q(I);N_PINP(b)
- Vars
- K(a);P-FLIGHT,P_SPINS(d)::R(F)+S(E)
- K(a);P-FLIGHT,P_SPINS(d)::S(E)
- S(d);XR(F)::P(C)
- P(b);SBLOCK::QAR(I)
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).