MESON Chess Problem Database
Problem Display
PID: 65277 (3r2b1/1Q2R1Kp/1P1k3P/4N3/N6p/1p5B/1P4P1/8 w - - 0 1)
Jakab, Arpad
2nd Prize, Good Companions (April Complete Blocks), 1922
#2
10 + 6
| 3132 | The Good Companion Two-Mover | 1922 |
SOLUTION
- SOUND
- Sets
- 1...Rd7
- 2.Qxd7#
- 1...Ra8
- 2.Qd7#
- 1...Rb8
- 2.Qd7#
- 1...Rc8
- 2.Qd7#
- 1...Re8
- 2.Qd7#
- 1...Rf8
- 2.Qd7#
- 1...Bc4
- 2.Sxc4#
- 1...Bd5
- 2.Qc7#
- 1...Be6
- 2.Rxe6#
- 1...Bf7
- 2.Sxf7#
- 1...Rd7
- Tries
- 1.Kf6?
- threat
- 2.Qc6#
- 1...Rc8
- 2.Rd7#
- 2.Qd7#
- 1...Bd5
- 2.Qc7#
- 1...Rf8+!
- threat
- 1.Bg4?
- 1...Rd7
- 2.Qxd7#
- 1...Be6
- 2.Rxe6#
- 1...Bc4
- 2.Sxc4#
- 1...Ra8
- 2.Qd7#
- 1...Rb8
- 2.Qd7#
- 1...Rc8
- 2.Qd7#
- 1...Re8
- 2.Qd7#
- 1...Rf8
- 2.Qd7#
- 1...Bd5
- 2.Qc7#
- 1...Bf7
- 2.Sxf7#
- 1...h3!
- 1...Rd7
- 1.Bf5?
- 1...Rd7
- 2.Qxd7#
- 1...Be6
- 2.Rxe6#
- 1...Bc4
- 2.Sxc4#
- 1...Ra8
- 2.Qd7#
- 1...Rb8
- 2.Qd7#
- 1...Rc8
- 2.Qd7#
- 1...Re8
- 2.Qd7#
- 1...Rf8
- 2.Qd7#
- 1...Bd5
- 2.Qc7#
- 1...Bf7
- 2.Sxf7#
- 1...h3!
- 1...Rd7
- 1.Bc8?
- 1...Rxc8
- 2.Qd7#
- 1...Rd7
- 2.Qxd7#
- 1...Be6
- 2.Rxe6#
- 1...Bc4
- 2.Sxc4#
- 1...Re8
- 2.Qd7#
- 1...Rf8
- 2.Qd7#
- 1...Bd5
- 2.Qc7#
- 1...Bf7
- 2.Sxf7#
- 1...h3!
- 1...Rxc8
- 1.Re8?
- threat
- 2.Qc6#
- 1...Rd7+
- 2.Qxd7#
- 1...Be6
- 2.Rxe6#
- 1...Rc8
- 2.Qd7#
- 1...Bd5
- 2.Qc7#
- 2.Qe7#
- 1...Rxe8!
- threat
- 1.g3?
- 1...Rd7
- 2.Qxd7#
- 1...Be6
- 2.Rxe6#
- 1...Bc4
- 2.Sxc4#
- 1...Ra8
- 2.Qd7#
- 1...Rb8
- 2.Qd7#
- 1...Rc8
- 2.Qd7#
- 1...Re8
- 2.Qd7#
- 1...Rf8
- 2.Qd7#
- 1...Bd5
- 2.Qc7#
- 1...Bf7
- 2.Sxf7#
- 1...hxg3!
- 1...Rd7
- 1.Kf6?
- Keys
- 1.Qe4!
- 1...Kxe7
- 2.Sf7#
- 1...Bc4
- 2.Sxc4#
- 1...Rd7
- 2.Rxd7#
- 1...Ra8
- 2.Rd7#
- 1...Rb8
- 2.Rd7#
- 1...Rc8
- 2.Rd7#
- 1...Re8
- 2.Rd7#
- 1...Rf8
- 2.Rd7#
- 1...Bd5
- 2.Qb4#
- 1...Be6
- 2.Rxe6#
- 1...Bf7
- 2.Sxf7#
- 1...Kxe7
- 1.Qe4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 7
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(e);N_GUARD,P_PINR(I)::QAR1(H),XR(e)
- R(e);N_GUARD::QAR1(H)
- B(f);N_GUARD::S(E),XB(f)
- B(f);SBLOCK::QAB1(H)
- B(f);N_GUARD::R1(I),XB(f)
- Tries
- Try
- K(J);S_FLIGHT
- Threat
- QAR1(H)
- Vars
- B(f);SBLOCK::QAB1(H)
- Refutation
- R(e);CHECK
- Try
- B(C);
- Vars
- R(e);N_GUARD,P_PINR(I)::QAR1(H),XR(e)
- B(f);N_GUARD::R1(I),XB(f)
- B(f);N_GUARD::S(E),XB(f)
- R(e);N_GUARD::QAR1(H)
- B(f);SBLOCK::QAB1(H)
- Refutation
- P(b);
- Try
- B(C);
- Vars
- R(e);N_GUARD,P_PINR(I)::QAR1(H),XR(e)
- B(f);N_GUARD::R1(I),XB(f)
- B(f);N_GUARD::S(E),XB(f)
- R(e);N_GUARD::QAR1(H)
- B(f);SBLOCK::QAB1(H)
- Refutation
- P(b);
- Try
- B(C);
- Vars
- R(e);N_GUARD,XB(C)::QAR1(H)
- R(e);N_GUARD,P_PINR(I)::QAR1(H),XR(e)
- B(f);N_GUARD::R1(I),XB(f)
- B(f);N_GUARD::S(E),XB(f)
- R(e);N_GUARD::QAR1(H)
- B(f);SBLOCK::QAB1(H)
- Refutation
- P(b);
- Try
- R(I);
- Threat
- QAR1(H)
- Vars
- R(e);CHECK,N_GUARD::QAR1(H),XR(e)
- B(f);N_GUARD::R1(I),XB(f)
- R(e);N_GUARD::QAR1(H)
- Refutation
- R(e);XR(I)
- Try
- P(B);
- Vars
- R(e);N_GUARD,P_PINR(I)::QAR1(H),XR(e)
- B(f);N_GUARD::R1(I),XB(f)
- B(f);N_GUARD::S(E),XB(f)
- R(e);N_GUARD::QAR1(H)
- B(f);SBLOCK::QAB1(H)
- Refutation
- P(b);XP(B)
- Try
- Actual
- Q(H);
- Vars
- K(c);S_FLIGHT,XR(I)::QAR(H)+S(E)
- B(f);N_GUARD::S(E),XB(f)
- R(e);N_GUARD,P_PINR(I)::R1(I),XR(e)
- R(e);N_GUARD::R1(I)
- B(f);SBLOCK::QAB(H)
- B(f);N_GUARD::R1(I),XB(f)
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).