MESON Chess Problem Database
Problem Display
PID: 58119 (8/8/8/2R4p/p1N3kb/K4Rp1/6Q1/3n4 w - - 0 1)
Brown, Carl G
Chess Life, 1958
#2
5 + 6
| 3310 | 2345 Chess Problems | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Bg5
- 2.Qxg3#
- 1...Bf6
- 2.Qxg3#
- 1...Be7
- 2.Qxg3#
- 1...Bd8
- 2.Qxg3#
- 1...Sb2
- 2.Se3#
- 1...Sf2
- 2.Se3#
- 1...Sc3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Bg5
- Tries
- 1.Kb4?
- 1...Bg5
- 2.Qxg3#
- 1...Bf6
- 2.Qxg3#
- 1...Be7
- 2.Qxg3#
- 1...Bd8
- 2.Qxg3#
- 1...Sb2
- 2.Se3#
- 1...Sf2
- 2.Se3#
- 1...Sc3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...a3!
- 1...Bg5
- 1.Rxg3+?
- 1...Kf4
- 2.Qf3#
- 1...Bxg3!
- 1...Kf4
- 1.Ra5?
- 1...Bg5
- 2.Qxg3#
- 1...Bf6
- 2.Qxg3#
- 1...Bd8
- 2.Qxg3#
- 1...Sf2
- 2.Se3#
- 1...Sb2
- 2.Se3#
- 1...Sc3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Be7+!
- 1...Bg5
- 1.Rb5?
- 1...Bg5
- 2.Qxg3#
- 1...Bf6
- 2.Qxg3#
- 1...Bd8
- 2.Qxg3#
- 1...Sf2
- 2.Se3#
- 1...Sb2
- 2.Se3#
- 1...Sc3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Be7+!
- 1...Bg5
- 1.Rd5?
- 1...Bg5
- 2.Qxg3#
- 1...Bf6
- 2.Qxg3#
- 1...Bd8
- 2.Qxg3#
- 1...Sf2
- 2.Se3#
- 1...Sb2
- 2.Se3#
- 1...Sc3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Be7+!
- 1...Bg5
- 1.Re5?
- 1...Bg5
- 2.Qxg3#
- 1...Bf6
- 2.Qxg3#
- 1...Bd8
- 2.Qxg3#
- 1...Sf2
- 2.Se3#
- 1...Sb2
- 2.Se3#
- 1...Sc3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Be7+!
- 1...Bg5
- 1.Rcf5?
- threat
- 2.Se5#
- 2.R3f4#
- 1...Bg5
- 2.Qxg3#
- 1...Bf6
- 2.R3f4#
- 2.Qxg3#
- 1...Bd8
- 2.R3f4#
- 2.Qxg3#
- 1...Be7+!
- threat
- 1.Rg5+?
- 1...Bxg5
- 2.Qxg3#
- 1...Kxg5!
- 1...Bxg5
- 1.Kb4?
- Keys
- 1.Qh1!
- 1...g2
- 2.Qh3#
- 1...Sf2
- 2.Se3#
- 1...Bg5
- 2.Se5#
- 1...Bf6
- 2.Qxh5#
- 1...Be7
- 2.Qxh5#
- 1...Bd8
- 2.Qxh5#
- 1...Sb2
- 2.Se3#
- 1...Sc3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...g2
- 1.Qh1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 4
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(e);N_GUARD::QAR1(A),XP(b)
- B(e);N_GUARD,P_PINR(E)::QAR1(A),XP(b)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- Tries
- Try
- K(B);S_FLIGHT
- Vars
- B(e);N_GUARD::QAR1(A),XP(b)
- B(e);N_GUARD,P_PINR(E)::QAR1(A),XP(b)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- Refutation
- P(c);
- Try
- R(C);CHECK,XP(b)
- Vars
- K(d);P-FLIGHT::QAR1(A)
- Refutation
- B(e);P_SPINB(e),XR(C)
- Try
- R(E);
- Vars
- B(e);N_GUARD::QAR1(A),XP(b)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- Refutation
- B(e);CHECK
- Try
- R(E);
- Vars
- B(e);N_GUARD::QAR1(A),XP(b)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- Refutation
- B(e);CHECK
- Try
- R(E);
- Vars
- B(e);N_GUARD::QAR1(A),XP(b)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- Refutation
- B(e);CHECK
- Try
- R(E);
- Vars
- B(e);N_GUARD::QAR1(A),XP(b)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- Refutation
- B(e);CHECK
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- B(e);N_GUARD::QAR1(A),XP(b)
- Refutation
- B(e);CHECK
- Try
- R(E);CHECK
- Vars
- B(e);SBLOCK,XR(E)::QAR1(A),XP(b)
- Refutation
- K(d);P-FLIGHT,XR(E)
- Try
- Actual
- Q(A);N_PINP(b)
- Vars
- P(b);::QAB1(A)
- S(a);N_GUARD::S(D)
- B(e);SBLOCK::S(D)
- B(e);OGATE::QAB1(A),XP(f)
- B(e);OGATE,P_PINR(E)::QAB1(A),XP(f)
- S(a);N_GUARD::S(D),XS(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).