MESON Chess Problem Database
Problem Display
PID: 202355 (8/6p1/3N2K1/1R6/r2kpB2/1Rp5/2p5/2N5 w - - 0 1)
Mosely, Arthur James
2nd Prize, Good Companions, 1923
#2
6 + 6
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.R3b4#
- 1...Ra2
- 2.R3b4#
- 1...Ra3
- 2.R3b4#
- 1...Rb4
- 2.R3xb4#
- 1...Rc4
- 2.Sf5#
- 1...Ra5
- 2.R3b4#
- 1...Ra6
- 2.R3b4#
- 1...Ra7
- 2.R3b4#
- 1...Ra8
- 2.R3b4#
- 1...e3
- 2.Be5#
- 1...Ra1
- Tries
- 1.Kg5?
- 1...Ra1
- 2.R3b4#
- 1...Ra2
- 2.R3b4#
- 1...Ra3
- 2.R3b4#
- 1...Rb4
- 2.R3xb4#
- 1...Rc4
- 2.Sf5#
- 1...Ra5
- 2.Rb4#
- 1...Ra6
- 2.R3b4#
- 1...Ra7
- 2.R3b4#
- 1...Ra8
- 2.R3b4#
- 1...e3
- 2.Be5#
- 1...g6!
- 1...Ra1
- 1.Kxg7?
- 1...Ra1
- 2.R3b4#
- 1...Ra2
- 2.R3b4#
- 1...Ra3
- 2.R3b4#
- 1...Rb4
- 2.R3xb4#
- 1...Rc4
- 2.Sf5#
- 1...Ra5
- 2.R3b4#
- 1...Ra6
- 2.R3b4#
- 1...Ra8
- 2.R3b4#
- 1...e3
- 2.Be5#
- 1...Ra7+!
- 1...Ra1
- 1.Bg5?
- 1...Ra1
- 2.R3b4#
- 1...Ra2
- 2.R3b4#
- 1...Ra3
- 2.R3b4#
- 1...Rb4
- 2.R3xb4#
- 1...Rc4
- 2.Sf5#
- 1...Ra5
- 2.R3b4#
- 1...Ra6
- 2.R3b4#
- 1...Ra7
- 2.R3b4#
- 1...Ra8
- 2.R3b4#
- 1...e3!
- 1...Ra1
- 1.Bh6?
- 1...Ra1
- 2.R3b4#
- 1...Ra2
- 2.R3b4#
- 1...Ra3
- 2.R3b4#
- 1...Rb4
- 2.R3xb4#
- 1...Rc4
- 2.Sf5#
- 1...Ra5
- 2.R3b4#
- 1...Ra6
- 2.R3b4#
- 1...Ra7
- 2.R3b4#
- 1...Ra8
- 2.R3b4#
- 1...e3
- 2.Bxg7#
- 1...gxh6!
- 1...Ra1
- 1.Rb2?
- 1...Ra1
- 2.R2b4#
- 1...Ra2
- 2.R2b4#
- 1...Ra3
- 2.R2b4#
- 1...Rb4
- 2.R2xb4#
- 1...Rc4
- 2.Sf5#
- 1...Ra5
- 2.R2b4#
- 1...Ra6
- 2.R2b4#
- 1...Ra7
- 2.R2b4#
- 1...Ra8
- 2.R2b4#
- 1...e3
- 2.Be5#
- 1...cxb2!
- 1...Ra1
- 1.Ra5?
- 1...Ra1
- 2.Rb4#
- 1...Ra2
- 2.Rb4#
- 1...Ra3
- 2.Rb4#
- 1...Rb4
- 2.Rxb4#
- 1...Rc4
- 2.Sf5#
- 1...e3
- 2.Be5#
- 1...Rxa5!
- 1...Ra1
- 1.Re5?
- 1...Ra1
- 2.Rb4#
- 1...Ra2
- 2.Rb4#
- 1...Ra3
- 2.Rb4#
- 1...Rb4
- 2.Rxb4#
- 1...Rc4
- 2.Sb5#
- 2.Sf5#
- 1...Ra5
- 2.Rb4#
- 1...Ra6
- 2.Rb4#
- 1...Ra7
- 2.Rb4#
- 1...Ra8
- 2.Rb4#
- 1...e3!
- 1...Ra1
- 1.Rf5?
- 1...Ra1
- 2.Rb4#
- 1...Ra2
- 2.Rb4#
- 1...Ra3
- 2.Rb4#
- 1...Rb4
- 2.Rxb4#
- 1...Rc4
- 2.Sb5#
- 1...Ra5
- 2.Rb4#
- 1...Ra6
- 2.Rb4#
- 1...Ra7
- 2.Rb4#
- 1...Ra8
- 2.Rb4#
- 1...e3!
- 1...Ra1
- 1.Rg5?
- 1...Ra1
- 2.Rb4#
- 1...Ra2
- 2.Rb4#
- 1...Ra3
- 2.Rb4#
- 1...Rb4
- 2.Rxb4#
- 1...Rc4
- 2.Sb5#
- 1...Ra5
- 2.Rb4#
- 1...Ra6
- 2.Rb4#
- 1...Ra7
- 2.Rb4#
- 1...Ra8
- 2.Rb4#
- 1...e3!
- 1...Ra1
- 1.Rh5?
- 1...Ra1
- 2.Rb4#
- 1...Ra2
- 2.Rb4#
- 1...Ra3
- 2.Rb4#
- 1...Rb4
- 2.Rxb4#
- 1...Rc4
- 2.Sb5#
- 1...Ra5
- 2.Rb4#
- 1...Ra6
- 2.Rb4#
- 1...Ra7
- 2.Rb4#
- 1...Ra8
- 2.Rb4#
- 1...e3!
- 1...Ra1
- 1.Kg5?
- Keys
- 1.Bd2!
- 1...cxd2
- 2.Se2#
- 1...Ra1
- 2.R3b4#
- 1...Ra2
- 2.R3b4#
- 1...Ra3
- 2.R3b4#
- 1...Rb4
- 2.R3xb4#
- 1...Rc4
- 2.Sf5#
- 1...Ra5
- 2.R3b4#
- 1...Ra6
- 2.R3b4#
- 1...Ra7
- 2.R3b4#
- 1...Ra8
- 2.R3b4#
- 1...e3
- 2.Bxc3#
- 1...cxd2
- 1.Bd2!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(c);N_GUARD::R(B)
- R(c);N_GUARD::R(B),XR(c)
- R(c);SBLOCK::S(E)
- R(c);N_GUARD,P_PINS(E)::R(B)
- P(e);SBLOCK::B(C)
- Tries
- Try
- K(F);P-FLIGHT
- Vars
- R(c);N_GUARD::R(B)
- R(c);N_GUARD::R(B),XR(c)
- R(c);SBLOCK::S(E)
- R(c);N_GUARD,P_PINR(D)::R(B)
- P(e);SBLOCK::B(C)
- Refutation
- P(f);
- Try
- K(F);P-FLIGHT,XP(f)
- Vars
- R(c);N_GUARD::R(B)
- R(c);N_GUARD::R(B),XR(c)
- R(c);SBLOCK::S(E)
- P(e);SBLOCK::B(C)
- Refutation
- R(c);CHECK
- Try
- B(C);
- Vars
- R(c);N_GUARD::R(B)
- R(c);N_GUARD::R(B),XR(c)
- R(c);SBLOCK::S(E)
- R(c);N_GUARD,P_PINS(E)::R(B)
- Refutation
- P(e);
- Try
- B(C);
- Vars
- R(c);N_GUARD::R(B)
- R(c);N_GUARD::R(B),XR(c)
- R(c);SBLOCK::S(E)
- R(c);N_GUARD,P_PINS(E)::R(B)
- P(e);SBLOCK::B(C),XP(f)
- Refutation
- P(f);XB(C)
- Try
- R(B);
- Vars
- R(c);N_GUARD::R(B)
- R(c);N_GUARD::R(B),XR(c)
- R(c);SBLOCK::S(E)
- R(c);N_GUARD,P_PINS(E)::R(B)
- P(e);SBLOCK::B(C)
- Refutation
- P(b);XR(B)
- Try
- R(D);
- Vars
- R(c);N_GUARD::R(B)
- R(c);N_GUARD::R(B),XR(c)
- R(c);SBLOCK::S(E)
- P(e);SBLOCK::B(C)
- Refutation
- R(c);XR(D)
- Try
- R(D);
- Vars
- R(c);N_GUARD::R(B)
- R(c);N_GUARD::R(B),XR(c)
- R(c);N_GUARD,P_PINS(E)::R(B)
- Refutation
- P(e);
- Try
- R(D);
- Vars
- R(c);N_GUARD::R(B)
- R(c);N_GUARD::R(B),XR(c)
- R(c);SBLOCK::S(E)
- R(c);N_GUARD,P_PINS(E)::R(B)
- Refutation
- P(e);
- Try
- R(D);
- Vars
- R(c);N_GUARD::R(B)
- R(c);N_GUARD::R(B),XR(c)
- R(c);SBLOCK::S(E)
- R(c);N_GUARD,P_PINS(E)::R(B)
- Refutation
- P(e);
- Try
- R(D);
- Vars
- R(c);N_GUARD::R(B)
- R(c);N_GUARD::R(B),XR(c)
- R(c);SBLOCK::S(E)
- R(c);N_GUARD,P_PINS(E)::R(B)
- Refutation
- P(e);
- Try
- Actual
- B(C);
- Vars
- P(b);XB(C)::S(A)
- R(c);N_GUARD::R(B)
- R(c);N_GUARD::R(B),XR(c)
- R(c);SBLOCK::S(E)
- R(c);N_GUARD,P_PINS(E)::R(B)
- P(e);SBLOCK::B(C),XP(b)
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).