MESON Chess Problem Database
Problem Display
PID: 3042 (1r6/R7/b2N4/kpB5/3p4/PB1K4/1NP5/8 w - - 0 1)
Guidelli, Giorgio
4th Prize, Good Companions (January), 1917
#2
8 + 5
| 2681 | All Change Here! | 1919 |
| 3132 | The Good Companion Two-Mover | 1922 |
SOLUTION
- SOUND
- Sets
- 1...Rb6
- 2.Bb4#
- 1...Rb7
- 2.Sxb7#
- 1...Ra8
- 2.Sb7#
- 1...Rc8
- 2.Sb7#
- 1...Rd8
- 2.Sb7#
- 1...Re8
- 2.Sb7#
- 1...Rf8
- 2.Sb7#
- 1...Rg8
- 2.Sb7#
- 1...Rh8
- 2.Sb7#
- 1...b4+
- 2.Sbc4#
- 1...Rb6
- Tries
- 1.Kd2?
- 1...Rb6
- 2.Bb4#
- 1...Rb7
- 2.Sxb7#
- 1...Ra8
- 2.Sb7#
- 1...Rc8
- 2.Sb7#
- 1...Rd8
- 2.Sb7#
- 1...Re8
- 2.Sb7#
- 1...Rf8
- 2.Sb7#
- 1...Rg8
- 2.Sb7#
- 1...Rh8
- 2.Sb7#
- 1...b4
- 2.Sbc4#
- 1...d3!
- 1...Rb6
- 1.Kxd4?
- 1...Rb6
- 2.Bb4#
- 1...Rb7
- 2.Sxb7#
- 1...Ra8
- 2.Sb7#
- 1...Rc8
- 2.Sb7#
- 1...Re8
- 2.Sb7#
- 1...Rf8
- 2.Sb7#
- 1...Rg8
- 2.Sb7#
- 1...Rh8
- 2.Sb7#
- 1...b4
- 2.Sbc4#
- 1...Rd8!
- 1...Rb6
- 1.Sd1?
- 1...Rb6
- 2.Bb4#
- 1...Rb7
- 2.Sxb7#
- 1...Ra8
- 2.Sb7#
- 1...Rc8
- 2.Sb7#
- 1...Rd8
- 2.Sb7#
- 1...Re8
- 2.Sb7#
- 1...Rf8
- 2.Sb7#
- 1...Rg8
- 2.Sb7#
- 1...Rh8
- 2.Sb7#
- 1...b4+!
- 1...Rb6
- 1.Ba2?
- 1...Rb7
- 2.Sxb7#
- 1...Rb6
- 2.Bb4#
- 1...Ra8
- 2.Sb7#
- 1...Rc8
- 2.Sb7#
- 1...Rd8
- 2.Sb7#
- 1...Re8
- 2.Sb7#
- 1...Rf8
- 2.Sb7#
- 1...Rg8
- 2.Sb7#
- 1...Rh8
- 2.Sb7#
- 1...b4+!
- 1...Rb7
- 1.Bc4?
- 1...Rb7
- 2.Sxb7#
- 1...Rb6
- 2.Bb4#
- 1...Ra8
- 2.Sb7#
- 1...Rc8
- 2.Sb7#
- 1...Rd8
- 2.Sb7#
- 1...Re8
- 2.Sb7#
- 1...Rf8
- 2.Sb7#
- 1...Rg8
- 2.Sb7#
- 1...Rh8
- 2.Sb7#
- 1...b4
- 2.Rxa6#
- 1...bxc4+!
- 1...Rb7
- 1.Bd5?
- 1...Rb7
- 2.Sxb7#
- 1...Rb6
- 2.Bb4#
- 1...Ra8
- 2.Sb7#
- 1...Rc8
- 2.Sb7#
- 1...Rd8
- 2.Sb7#
- 1...Re8
- 2.Sb7#
- 1...Rf8
- 2.Sb7#
- 1...Rg8
- 2.Sb7#
- 1...Rh8
- 2.Sb7#
- 1...b4+!
- 1...Rb7
- 1.Be6?
- 1...Rb7
- 2.Sxb7#
- 1...Rb6
- 2.Bb4#
- 1...Ra8
- 2.Sb7#
- 1...Rc8
- 2.Sb7#
- 1...Rd8
- 2.Sb7#
- 1...Re8
- 2.Sb7#
- 1...Rf8
- 2.Sb7#
- 1...Rg8
- 2.Sb7#
- 1...Rh8
- 2.Sb7#
- 1...b4+!
- 1...Rb7
- 1.Bf7?
- 1...Rb7
- 2.Sxb7#
- 1...Rb6
- 2.Bb4#
- 1...Ra8
- 2.Sb7#
- 1...Rc8
- 2.Sb7#
- 1...Rd8
- 2.Sb7#
- 1...Re8
- 2.Sb7#
- 1...Rf8
- 2.Sb7#
- 1...Rg8
- 2.Sb7#
- 1...Rh8
- 2.Sb7#
- 1...b4+!
- 1...Rb7
- 1.Bg8?
- 1...Rxg8
- 2.Sb7#
- 1...Rb7
- 2.Sxb7#
- 1...Rb6
- 2.Bb4#
- 1...Ra8
- 2.Sb7#
- 1...Rc8
- 2.Sb7#
- 1...Rd8
- 2.Sb7#
- 1...Re8
- 2.Sb7#
- 1...Rf8
- 2.Sb7#
- 1...b4+!
- 1...Rxg8
- 1.Bxd4?
- 1...b4+
- 2.Sbc4#
- 1...Rb7
- 2.Sxb7#
- 1...Ra8
- 2.Sb7#
- 1...Rc8
- 2.Sb7#
- 1...Rd8
- 2.Sb7#
- 1...Re8
- 2.Sb7#
- 1...Rf8
- 2.Sb7#
- 1...Rg8
- 2.Sb7#
- 1...Rh8
- 2.Sb7#
- 1...Rb6!
- 1...b4+
- 1.Ra8?
- 1...b4+
- 2.Sbc4#
- 1...Rb7
- 2.Sxb7#
- 1...Rb6
- 2.Bb4#
- 1...Rc8
- 2.Sb7#
- 1...Rd8
- 2.Sb7#
- 1...Re8
- 2.Sb7#
- 1...Rf8
- 2.Sb7#
- 1...Rg8
- 2.Sb7#
- 1...Rh8
- 2.Sb7#
- 1...Rxa8!
- 1...b4+
- 1.c3?
- 1...b4+
- 2.Sbc4#
- 1...Rb7
- 2.Sxb7#
- 1...Rb6
- 2.Bb4#
- 1...Ra8
- 2.Sb7#
- 1...Rc8
- 2.Sb7#
- 1...Rd8
- 2.Sb7#
- 1...Re8
- 2.Sb7#
- 1...Rf8
- 2.Sb7#
- 1...Rg8
- 2.Sb7#
- 1...Rh8
- 2.Sb7#
- 1...dxc3!
- 1...b4+
- 1.a4?
- 1...bxa4+
- 2.Sbc4#
- 1...b4+
- 2.Sbc4#
- 2.Sdc4#
- 1...Rb7
- 2.Sxb7#
- 1...Ra8
- 2.Sb7#
- 1...Rc8
- 2.Sb7#
- 1...Rd8
- 2.Sb7#
- 1...Re8
- 2.Sb7#
- 1...Rf8
- 2.Sb7#
- 1...Rg8
- 2.Sb7#
- 1...Rh8
- 2.Sb7#
- 1...Rb6!
- 1...bxa4+
- 1.Kd2?
- Keys
- 1.Ba4!
- 1...bxa4+
- 2.Sbc4#
- 1...b4+
- 2.Sdc4#
- 1...Rb7
- 2.Sxb7#
- 1...Rb6
- 2.Bb4#
- 1...Ra8
- 2.Sb7#
- 1...Rc8
- 2.Sb7#
- 1...Rd8
- 2.Sb7#
- 1...Re8
- 2.Sb7#
- 1...Rf8
- 2.Sb7#
- 1...Rg8
- 2.Sb7#
- 1...Rh8
- 2.Sb7#
- 1...bxa4+
- 1.Ba4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(e);SBLOCK::B(F)
- R(e);N_GUARD::S(G),XR(e)
- R(e);N_GUARD::S(G)
- P(c);CHECK,N_GUARD::S(A)
- Tries
- Try
- K(E);P-FLIGHT
- Vars
- R(e);SBLOCK::B(F)
- R(e);N_GUARD::S(G),XR(e)
- R(e);N_GUARD::S(G)
- P(c);N_GUARD::S(A)
- Refutation
- P(a);
- Try
- K(E);P-FLIGHT,XP(a)
- Vars
- R(e);SBLOCK::B(F)
- R(e);N_GUARD::S(G),XR(e)
- R(e);N_GUARD::S(G)
- P(c);N_GUARD::S(A)
- Refutation
- R(e);P_PINS(G)
- Try
- S(A);
- Vars
- R(e);SBLOCK::B(F)
- R(e);N_GUARD::S(G),XR(e)
- R(e);N_GUARD::S(G)
- Refutation
- P(c);CHECK
- Try
- B(D);
- Vars
- R(e);N_GUARD::S(G),XR(e)
- R(e);SBLOCK::B(F)
- R(e);N_GUARD::S(G)
- Refutation
- P(c);CHECK
- Try
- B(D);
- Vars
- R(e);N_GUARD::S(G),XR(e)
- R(e);SBLOCK::B(F)
- R(e);N_GUARD::S(G)
- P(c);P_PINB(D)::R1(H),XB(d)
- Refutation
- P(c);CHECK,XB(D)
- Try
- B(D);
- Vars
- R(e);N_GUARD::S(G),XR(e)
- R(e);SBLOCK::B(F)
- R(e);N_GUARD::S(G)
- Refutation
- P(c);CHECK
- Try
- B(D);
- Vars
- R(e);N_GUARD::S(G),XR(e)
- R(e);SBLOCK::B(F)
- R(e);N_GUARD::S(G)
- Refutation
- P(c);CHECK
- Try
- B(D);
- Vars
- R(e);N_GUARD::S(G),XR(e)
- R(e);SBLOCK::B(F)
- R(e);N_GUARD::S(G)
- Refutation
- P(c);CHECK
- Try
- B(D);
- Vars
- R(e);N_GUARD,XB(D)::S(G)
- R(e);N_GUARD::S(G),XR(e)
- R(e);SBLOCK::B(F)
- R(e);N_GUARD::S(G)
- Refutation
- P(c);CHECK
- Try
- B(F);XP(a)
- Vars
- P(c);CHECK,N_GUARD::S(A)
- R(e);N_GUARD::S(G),XR(e)
- R(e);N_GUARD::S(G)
- Refutation
- R(e);
- Try
- R(H);
- Vars
- P(c);CHECK,N_GUARD::S(A)
- R(e);N_GUARD::S(G),XR(e)
- R(e);SBLOCK::B(F)
- R(e);N_GUARD::S(G)
- Refutation
- R(e);N_SPINB(d),XR(H)
- Try
- P(B);
- Vars
- P(c);CHECK,N_GUARD::S(A)
- R(e);N_GUARD::S(G),XR(e)
- R(e);SBLOCK::B(F)
- R(e);N_GUARD::S(G)
- Refutation
- P(a);XP(B)
- Try
- P(C);
- Vars
- P(c);CHECK,N_GUARD,XP(C)::S(A)
- R(e);N_GUARD::S(G),XR(e)
- R(e);N_GUARD::S(G)
- Refutation
- R(e);
- Try
- Actual
- B(D);
- Vars
- P(c);CHECK,N_GUARD,SBLOCK,XB(D)::S(A)
- P(c);CHECK,N_GUARD::S(G)
- R(e);N_GUARD::S(G),XR(e)
- R(e);SBLOCK::B(F)
- R(e);N_GUARD::S(G)
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).