MESON Chess Problem Database
Problem Display
PID: 141711 (b6b/4p3/8/2Q4N/1K2k2n/2pRN3/2P5/3B4 w - - 0 1)
Beal, Edward W
Probleemblad, 1977
#2
7 + 6
SOLUTION
- SOUND
- Sets
- 1...Bd5
- 2.Qxd5#
- 1...Bd4
- 2.Qxd4#
- 1...Sg2
- 2.Qf5#
- 1...Sf3
- 2.Qf5#
- 1...Sf5
- 2.Qxf5#
- 1...Sg6
- 2.Qf5#
- 1...e5
- 2.Qc4#
- 1...Bd5
- Tries
- 1.Sf1?
- threat
- 2.Sfg3#
- 2.Re3#
- 1...Bd5
- 2.Qxd5#
- 1...e5
- 2.Sfg3#
- 1...Bd4
- 2.Sfg3#
- 2.Rxd4#
- 1...Sg2
- 2.Sfg3#
- 2.Bf3#
- 1...Sf5
- 2.Bf3#
- 1...Be5!
- threat
- 1.Sg2?
- threat
- 2.Sg3#
- 2.Re3#
- 1...Sxg2
- 2.Bf3#
- 1...Bd5
- 2.Qxd5#
- 1...e5
- 2.Sg3#
- 1...Bd4
- 2.Sg3#
- 2.Rxd4#
- 1...Sf5
- 2.Bf3#
- 1...Be5!
- threat
- 1.Sg4?
- threat
- 2.Sf2#
- 2.Re3#
- 1...Bd5
- 2.Qxd5#
- 1...Be5
- 2.Qxe5#
- 1...Bd4
- 2.Rxd4#
- 1...Sg2
- 2.Sf2#
- 2.Bf3#
- 1...Sf5
- 2.Sf2#
- 2.Bf3#
- 1...e5!
- threat
- 1.Sf5?
- threat
- 2.Sfg3#
- 2.Re3#
- 1...Sxf5
- 2.Bf3#
- 1...Bd5
- 2.Qxd5#
- 1...e5
- 2.Sfg3#
- 2.Sd6#
- 1...Bd4
- 2.Sfg3#
- 2.Rxd4#
- 1...Sg2
- 2.Sfg3#
- 2.Bf3#
- 1...Be5!
- threat
- 1.Bf3+?
- 1...Sxf3
- 2.Qf5#
- 1...Kxf3!
- 1...Sxf3
- 1.Qc4+?
- 1...Bd4
- 2.Qxd4#
- 1...Ke5!
- 1...Bd4
- 1.Qg5?
- threat
- 2.Sg3#
- 2.Qf4#
- 1...Sf5
- 2.Qf4#
- 2.Qxf5#
- 1...Sg2
- 2.Sg3#
- 2.Qf5#
- 1...Sg6
- 2.Sg3#
- 2.Qf5#
- 1...e5
- 2.Sg3#
- 2.Qxh4#
- 2.Qg4#
- 1...Be5!
- threat
- 1.Qc7?
- threat
- 2.Sg3#
- 2.Qf4#
- 1...Sg2
- 2.Sg3#
- 1...Sf5
- 2.Qf4#
- 1...Sg6
- 2.Sg3#
- 1...e5
- 2.Qc4#
- 1...Be5!
- threat
- 1.Sf1?
- Keys
- 1.Sc4!
- threat
- 2.Re3#
- 1...Bd5
- 2.Qxd5#
- 1...Be5
- 2.Qxe5#
- 1...e5
- 2.Sd6#
- 1...Bd4
- 2.Rxd4#
- 1...Sg2
- 2.Bf3#
- 1...Sf5
- 2.Bf3#
- threat
- 1.Sc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- B(e);N_GUARD::QAB1(F),XB(e)
- B(f);N_GUARD::QAR1(F),XB(f)
- S(c);N_GUARD::QAB1(F)
- S(c);N_GUARD::QAB1(F),XS(c)
- P(d);SBLOCK,S_CUTB(f)::QAR2(F)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- B(e);N_GUARD::QAB1(F),XB(e)
- P(d);::S(D)
- S(c);N_GUARD::B(A)
- Refutation
- B(f);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- S(c);N_GUARD,XS(D)::B(A)
- B(e);N_GUARD::QAB1(F),XB(e)
- P(d);::S(G)
- S(c);N_GUARD::B(A)
- Refutation
- B(f);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- B(e);N_GUARD::QAB1(F),XB(e)
- B(f);N_GUARD::QAR1(F),XB(f)
- B(f);N_GUARD::R1(C),XB(f)
- Refutation
- P(d);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- S(c);N_GUARD,XS(D)::B(A)
- B(e);N_GUARD::QAB1(F),XB(e)
- Refutation
- B(f);
- Try
- B(A);CHECK
- Vars
- S(c);XB(A)::QAB1(F)
- Refutation
- K(b);S_FLIGHT,XB(A)
- Try
- Q(F);CHECK
- Vars
- B(f);N_GUARD,P_SPINB(f)::QAR1(F),XB(f)
- Refutation
- K(b);P-FLIGHT
- Try
- Q(F);
- Threat
- DUALS(2)
- Refutation
- B(f);
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- S(c);::S(G)
- S(c);::QAR1(F)
- P(d);SBLOCK,S_CUTB(f)::QAR2(F)
- Refutation
- B(f);
- Try
- Actual
- S(D);
- Threat
- R1(C)
- Vars
- B(e);N_GUARD::QAB1(F),XB(e)
- B(f);N_GUARD::QAR1(F),XB(f)
- P(d);N_GUARD::S(D)
- B(f);N_GUARD::R1(C),XB(f)
- S(c);N_GUARD::B(A)
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).