MESON Chess Problem Database
Problem Display
PID: 78550 (b7/8/R2N1N2/2k5/Bppp4/n1R2p2/5K2/2B5 w - - 0 1)
Cavrel, Edouard
La Strategie, 1923
#2
7 + 7
SOLUTION
- SOUND
- Sets
- 1...Be4
- 2.Sdxe4#
- 1...Bd5
- 2.Sd7#
- 1...Bc6
- 2.Rxc6#
- 1...Bb7
- 2.Sxb7#
- 1...Sb1
- 2.Rxc4#
- 1...Sc2
- 2.Rxc4#
- 1...Sb5
- 2.Rxc4#
- 1...bxc3
- 2.Bxa3#
- 1...b3
- 2.Bxa3#
- 1...dxc3
- 2.Be3#
- 1...d3
- 2.Be3#
- 1...Be4
- Tries
- 1.Kf1?
- 1...bxc3
- 2.Bxa3#
- 1...dxc3
- 2.Be3#
- 1...Bc6
- 2.Rxc6#
- 1...b3
- 2.Bxa3#
- 1...d3
- 2.Be3#
- 1...Be4
- 2.Sdxe4#
- 1...Bd5
- 2.Sd7#
- 1...Bb7
- 2.Sxb7#
- 1...Sb1
- 2.Rxc4#
- 1...Sc2
- 2.Rxc4#
- 1...Sb5
- 2.Rxc4#
- 1...f2!
- 1...bxc3
- 1.Kg1?
- 1...bxc3
- 2.Bxa3#
- 1...dxc3
- 2.Be3#
- 1...Bc6
- 2.Rxc6#
- 1...b3
- 2.Bxa3#
- 1...d3
- 2.Be3#
- 1...Be4
- 2.Sdxe4#
- 1...Bd5
- 2.Sd7#
- 1...Bb7
- 2.Sxb7#
- 1...Sb1
- 2.Rxc4#
- 1...Sc2
- 2.Rxc4#
- 1...Sb5
- 2.Rxc4#
- 1...f2+!
- 1...bxc3
- 1.Kg3?
- 1...bxc3
- 2.Bxa3#
- 1...dxc3
- 2.Be3#
- 1...Bc6
- 2.Rxc6#
- 1...b3
- 2.Bxa3#
- 1...d3
- 2.Be3#
- 1...Be4
- 2.Sdxe4#
- 1...Bd5
- 2.Sd7#
- 1...Bb7
- 2.Sxb7#
- 1...Sb1
- 2.Rxc4#
- 1...Sc2
- 2.Rxc4#
- 1...Sb5
- 2.Rxc4#
- 1...f2!
- 1...bxc3
- 1.Bxa3?
- threat
- 2.Rxc4#
- 1...Bc6
- 2.Rxc6#
- 1...Bd5
- 2.Sd7#
- 1...dxc3!
- threat
- 1.Bd7?
- 1...bxc3
- 2.Bxa3#
- 1...dxc3
- 2.Be3#
- 1...Bc6
- 2.Rxc6#
- 1...b3
- 2.Bxa3#
- 1...d3
- 2.Be3#
- 1...Be4
- 2.Sdxe4#
- 1...Bb7
- 2.Sxb7#
- 1...Sb1
- 2.Rxc4#
- 1...Sc2
- 2.Rxc4#
- 1...Sb5
- 2.Rxc4#
- 1...Bd5!
- 1...bxc3
- 1.Kf1?
- Keys
- 1.Be8!
- 1...bxc3
- 2.Bxa3#
- 1...dxc3
- 2.Be3#
- 1...Bc6
- 2.Rxc6#
- 1...b3
- 2.Bxa3#
- 1...d3
- 2.Be3#
- 1...Be4
- 2.Sdxe4#
- 1...Bd5
- 2.Sd7#
- 1...Bb7
- 2.Sxb7#
- 1...Sb1
- 2.Rxc4#
- 1...Sc2
- 2.Rxc4#
- 1...Sb5
- 2.Rxc4#
- 1...bxc3
- 1.Be8!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(g);N_GUARD::S(F),XB(g)
- B(g);SBLOCK::S(G)
- B(g);N_GUARD::R1(E),XB(g)
- S(a);N_GUARD::R1(C),XP(d)
- P(c);N_SPINP(d),OGATEB,XR(C)::B(A),XS(a)
- P(c);OGATEB::B(A),XS(a)
- P(e);N_SPINP(d),OGATEB,XR(C)::B(A)
- P(e);OGATEB::B(A)
- Tries
- Try
- K(B);P-FLIGHT
- Vars
- P(c);N_SPINP(d),OGATEB,XR(C)::B(A),XS(a)
- P(e);N_SPINP(d),OGATEB,XR(C)::B(A)
- B(g);N_GUARD::R1(E),XB(g)
- P(c);OGATEB::B(A),XS(a)
- P(e);OGATEB::B(A)
- B(g);N_GUARD::S(F),XB(g)
- B(g);SBLOCK::S(G)
- S(a);N_GUARD::R1(C),XP(d)
- Refutation
- P(b);
- Try
- K(B);S_FLIGHT
- Vars
- P(c);N_SPINP(d),OGATEB,XR(C)::B(A),XS(a)
- P(e);N_SPINP(d),OGATEB,XR(C)::B(A)
- B(g);N_GUARD::R1(E),XB(g)
- P(c);OGATEB::B(A),XS(a)
- P(e);OGATEB::B(A)
- B(g);N_GUARD::S(F),XB(g)
- B(g);SBLOCK::S(G)
- S(a);N_GUARD::R1(C),XP(d)
- Refutation
- P(b);CHECK
- Try
- K(B);S_FLIGHT
- Vars
- P(c);N_SPINP(d),OGATEB,XR(C)::B(A),XS(a)
- P(e);N_SPINP(d),OGATEB,XR(C)::B(A)
- B(g);N_GUARD::R1(E),XB(g)
- P(c);OGATEB::B(A),XS(a)
- P(e);OGATEB::B(A)
- B(g);N_GUARD::S(F),XB(g)
- B(g);SBLOCK::S(G)
- S(a);N_GUARD::R1(C),XP(d)
- Refutation
- P(b);
- Try
- B(A);N_PINP(d),P_PINP(c),XS(a)
- Threat
- R1(C),XP(d)
- Vars
- B(g);N_GUARD::R1(E),XB(g)
- B(g);SBLOCK::S(G)
- Refutation
- P(e);XR(C)
- Try
- B(D);
- Vars
- P(c);N_SPINP(d),OGATEB,XR(C)::B(A),XS(a)
- P(e);N_SPINP(d),OGATEB,XR(C)::B(A)
- B(g);N_GUARD::R1(E),XB(g)
- P(c);OGATEB::B(A),XS(a)
- P(e);OGATEB::B(A)
- B(g);N_GUARD::S(F),XB(g)
- S(a);N_GUARD::R1(C),XP(d)
- Refutation
- B(g);
- Try
- Actual
- B(D);
- Vars
- P(c);N_SPINP(d),OGATEB,XR(C)::B(A),XS(a)
- P(e);N_SPINP(d),OGATEB,XR(C)::B(A)
- B(g);N_GUARD::R1(E),XB(g)
- P(c);OGATEB::B(A),XS(a)
- P(e);OGATEB::B(A)
- B(g);N_GUARD::S(F),XB(g)
- B(g);SBLOCK::S(G)
- S(a);N_GUARD::R1(C),XP(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).