MESON Chess Problem Database
Problem Display
PID: 51622 (7K/p2p3P/B2N4/R1Q5/Pp2Pp1B/1P2Pk1P/7R/4rr2 w - - 0 1)
Barrow, John Hugh
Southport Visitor, 1917
#2
13 + 7
| 5257 | Chess Problems by J H Barrow | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Be2#
- 1...Rb1
- 2.Be2#
- 1...Rc1
- 2.Be2#
- 1...Rd1
- 2.Be2#
- 1...Re2
- 2.Bxe2#
- 1...Rxe3
- 2.Qh5#
- 1...Rg1
- 2.Rf2#
- 1...Rh1
- 2.Rf2#
- 1...Rf2
- 2.Rxf2#
- 1...fxe3
- 2.Qf5#
- 1...Ra1
- Tries
- 1.Kg7?
- 1...Rxe3
- 2.Qh5#
- 1...fxe3
- 2.Qf5#
- 1...Ra1
- 2.Be2#
- 1...Rb1
- 2.Be2#
- 1...Rc1
- 2.Be2#
- 1...Rd1
- 2.Be2#
- 1...Re2
- 2.Bxe2#
- 1...Rh1
- 2.Rf2#
- 1...Rf2
- 2.Rxf2#
- 1...Rg1+!
- 1...Rxe3
- 1.Kg8?
- 1...Rxe3
- 2.Qh5#
- 1...fxe3
- 2.Qf5#
- 1...Ra1
- 2.Be2#
- 1...Rb1
- 2.Be2#
- 1...Rc1
- 2.Be2#
- 1...Rd1
- 2.Be2#
- 1...Re2
- 2.Bxe2#
- 1...Rh1
- 2.Rf2#
- 1...Rf2
- 2.Rxf2#
- 1...Rg1+!
- 1...Rxe3
- 1.Sf7?
- threat
- 2.Sg5#
- 1...Kxe4
- 2.Sg5#
- 1...fxe3
- 2.Qf5#
- 1...Rg1!
- threat
- 1.Bxf1?
- threat
- 2.Rf2#
- 1...fxe3
- 2.Qf5#
- 1...Re2
- 2.Bxe2#
- 1...Rxf1!
- threat
- 1.Bd3?
- 1...Rxe3
- 2.Qh5#
- 1...fxe3
- 2.Qf5#
- 1...Rg1
- 2.Rf2#
- 1...Ra1
- 2.Be2#
- 1...Rb1
- 2.Be2#
- 1...Rc1
- 2.Be2#
- 1...Rd1
- 2.Be2#
- 1...Re2
- 2.Bxe2#
- 1...Rh1
- 2.Rf2#
- 1...Rf2
- 2.Rxf2#
- 1...a6!
- 1...Rxe3
- 1.Bc4?
- 1...Rxe3
- 2.Qh5#
- 1...fxe3
- 2.Qf5#
- 1...Rg1
- 2.Rf2#
- 1...Ra1
- 2.Be2#
- 1...Rb1
- 2.Be2#
- 1...Rc1
- 2.Be2#
- 1...Rd1
- 2.Be2#
- 1...Re2
- 2.Bxe2#
- 1...Rh1
- 2.Rf2#
- 1...Rf2
- 2.Rxf2#
- 1...a6!
- 1...Rxe3
- 1.Bb5?
- 1...Rxe3
- 2.Qh5#
- 1...fxe3
- 2.Qf5#
- 1...Rg1
- 2.Rf2#
- 1...Ra1
- 2.Be2#
- 1...Rb1
- 2.Be2#
- 1...Rc1
- 2.Be2#
- 1...Rd1
- 2.Be2#
- 1...Re2
- 2.Bxe2#
- 1...Rh1
- 2.Rf2#
- 1...Rf2
- 2.Rxf2#
- 1...a6!
- 1...Rxe3
- 1.Bb7?
- threat
- 2.e5#
- 1...Rxe3
- 2.Qh5#
- 1...fxe3
- 2.Qf5#
- 1...Rf2
- 2.Rxf2#
- 1...Rd1!
- threat
- 1.Re2?
- threat
- 2.Qh5#
- 1...fxe3
- 2.Qxe3#
- 2.Qf5#
- 1...Rf2
- 2.Rxf2#
- 1...Rg1
- 2.Rf2#
- 1...Rxe2!
- threat
- 1.Qd4?
- 1...fxe3
- 2.Rf5#
- 2.Qf6#
- 1...Ra1
- 2.Be2#
- 1...Rb1
- 2.Be2#
- 1...Rc1
- 2.Be2#
- 1...Rd1
- 2.Be2#
- 1...Re2
- 2.Bxe2#
- 1...Rg1
- 2.Rf2#
- 1...Rh1
- 2.Rf2#
- 1...Rf2
- 2.Rxf2#
- 1...Rxe3!
- 1...fxe3
- 1.Qxa7?
- 1...fxe3
- 2.Rf5#
- 1...Ra1
- 2.Be2#
- 1...Rb1
- 2.Be2#
- 1...Rc1
- 2.Be2#
- 1...Rd1
- 2.Be2#
- 1...Re2
- 2.Bxe2#
- 1...Rg1
- 2.Rf2#
- 1...Rh1
- 2.Rf2#
- 1...Rf2
- 2.Rxf2#
- 1...Rxe3!
- 1...fxe3
- 1.Qc1?
- 1...Rxe3
- 2.Qxf1#
- 1...fxe3
- 2.Rf5#
- 1...Rd1
- 2.Be2#
- 1...Re2
- 2.Bxe2#
- 1...Rg1
- 2.Rf2#
- 1...Rh1
- 2.Rf2#
- 1...Rf2
- 2.Rxf2#
- 1...Rxc1!
- 1...Rxe3
- 1.Qc3?
- 1...Rxe3
- 2.Be2#
- 1...fxe3
- 2.Rf5#
- 2.Qf6#
- 1...Ra1
- 2.Be2#
- 1...Rb1
- 2.Be2#
- 1...Rc1
- 2.Be2#
- 1...Rd1
- 2.Be2#
- 1...Re2
- 2.Bxe2#
- 1...Rg1
- 2.Rf2#
- 1...Rh1
- 2.Rf2#
- 1...Rf2
- 2.Rxf2#
- 1...bxc3!
- 1...Rxe3
- 1.Qe5?
- threat
- 2.Qxf4#
- 1...Rxe3
- 2.Qh5#
- 1...fxe3
- 2.Qg3#
- 2.Qf6#
- 2.Qf5#
- 1...Kxe3!
- threat
- 1.Qf5?
- threat
- 2.Qxf4#
- 1...Rxe3
- 2.Qg4#
- 2.Qh5#
- 1...Kxe3!
- threat
- 1.Qg5?
- threat
- 2.Qxf4#
- 1...Rxe3
- 2.Qg2#
- 2.Qg4#
- 2.Qh5#
- 1...fxe3
- 2.Rf5#
- 2.Qf6#
- 2.Qg3#
- 2.Qg4#
- 2.Qf5#
- 1...Kxe3!
- threat
- 1.Kg7?
- Keys
- 1.Qc2!
- 1...Kxe3
- 2.Qd3#
- 1...Rxe3
- 2.Qg2#
- 1...fxe3
- 2.Rf5#
- 1...Ra1
- 2.Qe2#
- 1...Rb1
- 2.Qe2#
- 1...Rc1
- 2.Qe2#
- 1...Rd1
- 2.Qe2#
- 1...Re2
- 2.Qxe2#
- 1...Rg1
- 2.Qf2#
- 1...Rh1
- 2.Qf2#
- 1...Rf2
- 2.Qxf2#
- 1...Kxe3
- 1.Qc2!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 10
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD::B(J)
- R(a);N_GUARD::B(J),XR(a)
- R(a);SBLOCK,XP(C)::QAB(I)
- R(b);N_GUARD::R1(A)
- R(b);N_GUARD::R1(A),XR(b)
- P(e);OGATEB,SBLOCK,XP(C)::QAR2(I)
- Tries
- Try
- K(M);S_FLIGHT
- Vars
- R(a);SBLOCK,XP(C)::QAB(I)
- P(e);OGATEB,SBLOCK,XP(C)::QAR2(I)
- R(a);N_GUARD::B(J)
- R(a);N_GUARD::B(J),XR(a)
- R(b);N_GUARD::R1(A)
- R(b);N_GUARD::R1(A),XR(b)
- Refutation
- R(b);CHECK
- Try
- K(M);P-FLIGHT
- Vars
- R(a);SBLOCK,XP(C)::QAB(I)
- P(e);OGATEB,SBLOCK,XP(C)::QAR2(I)
- R(a);N_GUARD::B(J)
- R(a);N_GUARD::B(J),XR(a)
- R(b);N_GUARD::R1(A)
- R(b);N_GUARD::R1(A),XR(b)
- Refutation
- R(b);CHECK
- Try
- S(K);
- Threat
- S(K)
- Vars
- K(c);S_FLIGHT,XP(F)::S(K)
- P(e);OGATEB,SBLOCK,XP(C)::QAR2(I)
- Refutation
- R(b);
- Try
- B(J);XR(b)
- Threat
- R1(A)
- Vars
- P(e);OGATEB,SBLOCK,XP(C)::QAR2(I)
- R(a);N_GUARD::B(J),XR(a)
- Refutation
- R(a);XB(J)
- Try
- B(J);
- Vars
- R(a);SBLOCK,XP(C)::QAB(I)
- P(e);OGATEB,SBLOCK,XP(C)::QAR2(I)
- R(b);N_GUARD::R1(A)
- R(a);N_GUARD::B(J)
- R(a);N_GUARD::B(J),XR(a)
- R(b);N_GUARD::R1(A),XR(b)
- Refutation
- P(f);
- Try
- B(J);
- Vars
- R(a);SBLOCK,XP(C)::QAB(I)
- P(e);OGATEB,SBLOCK,XP(C)::QAR2(I)
- R(b);N_GUARD::R1(A)
- R(a);N_GUARD::B(J)
- R(a);N_GUARD::B(J),XR(a)
- R(b);N_GUARD::R1(A),XR(b)
- Refutation
- P(f);
- Try
- B(J);
- Vars
- R(a);SBLOCK,XP(C)::QAB(I)
- P(e);OGATEB,SBLOCK,XP(C)::QAR2(I)
- R(b);N_GUARD::R1(A)
- R(a);N_GUARD::B(J)
- R(a);N_GUARD::B(J),XR(a)
- R(b);N_GUARD::R1(A),XR(b)
- Refutation
- P(f);
- Try
- B(J);
- Threat
- B(J)+P(F)
- Vars
- R(a);SBLOCK,XP(C)::QAB(I)
- P(e);OGATEB,SBLOCK,XP(C)::QAR2(I)
- R(b);N_GUARD::R1(A),XR(b)
- Refutation
- R(a);
- Try
- R(A);
- Threat
- QAB(I)
- Vars
- R(b);N_GUARD::R1(A),XR(b)
- R(b);N_GUARD::R1(A)
- Refutation
- R(a);XR(A)
- Try
- Q(I);
- Vars
- R(a);N_GUARD::B(J)
- R(a);N_GUARD::B(J),XR(a)
- R(b);N_GUARD::R1(A)
- R(b);N_GUARD::R1(A),XR(b)
- Refutation
- R(a);XP(C)
- Try
- Q(I);XP(f)
- Vars
- P(e);OGATEB,XP(C)::R(H)
- R(a);N_GUARD::B(J)
- R(a);N_GUARD::B(J),XR(a)
- R(b);N_GUARD::R1(A)
- R(b);N_GUARD::R1(A),XR(b)
- Refutation
- R(a);XP(C)
- Try
- Q(I);
- Vars
- R(a);OGATE,SBLOCK,XP(C)::QAR2(I),XR(b)
- P(e);OGATEB,XP(C)::R(H)
- R(a);N_GUARD::B(J)
- R(a);N_GUARD::B(J),XR(a)
- R(b);N_GUARD::R1(A)
- R(b);N_GUARD::R1(A),XR(b)
- Refutation
- R(a);XQ(I)
- Try
- Q(I);
- Vars
- R(a);N_GUARD,P_SPINR(a),XP(C)::B(J)
- R(a);N_GUARD::B(J)
- R(a);N_GUARD::B(J),XR(a)
- R(b);N_GUARD::R1(A)
- R(b);N_GUARD::R1(A),XR(b)
- Refutation
- P(d);XQ(I)
- Try
- Q(I);
- Threat
- QAR1(I),XP(e)
- Vars
- R(a);SBLOCK,XP(C)::QAB(I)
- Refutation
- K(c);P-FLIGHT,XP(C)
- Try
- Q(I);P_PINP(e)
- Threat
- QAR1(I),XP(e)
- Refutation
- K(c);N_SPINP(e),P-FLIGHT,XP(C)
- Try
- Q(I);
- Threat
- QAR1(I),XP(e)
- Refutation
- K(c);P-FLIGHT,P_SPINP(e),XP(C)
- Try
- Actual
- Q(I);
- Vars
- K(c);OGATEB,P-FLIGHT,XP(C)::QAR1(I)
- R(a);SBLOCK,XP(C)::QAB1(I)
- P(e);OGATEB,SBLOCK,XP(C)::R(H)
- R(a);N_GUARD::QAB1(I)
- R(a);N_GUARD::QAB1(I),XR(a)
- R(b);N_GUARD::QAR1(I)
- R(b);N_GUARD::QAR1(I),XR(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).