MESON Chess Problem Database
Problem Display
PID: 57210 (8/p2N4/Rp2r1p1/2BP2Q1/2prk3/p1Rpn2B/K7/6N1 w - - 0 1)
Jerrard, Ernest Haslam Harvey
8th Highly Comm., Brisbane Courier, 1918
#2
9 + 10
SOLUTION
- SOUND
- Sets
- 1...Rxd5
- 2.Qxe3#
- 1...Re5
- 2.Sf6#
- 2.Qxe5#
- 1...Rc6
- 2.Qe5#
- 1...Rd6
- 2.Qe5#
- 1...Rf6
- 2.Sxf6#
- 2.Qe5#
- 1...Re7
- 2.Sf6#
- 1...Re8
- 2.Sf6#
- 1...Sd1
- 2.Bg2#
- 1...Sf1
- 2.Bg2#
- 1...Sc2
- 2.Bg2#
- 1...Sg2
- 2.Bxg2#
- 1...Sg4
- 2.Bg2#
- 1...Sxd5
- 2.Bg2#
- 1...Sf5
- 2.Bg2#
- 1...d2
- 2.Rxe3#
- 1...bxc5
- 2.Sxc5#
- 2.Rxe6#
- 1...b5
- 2.Rxe6#
- 1...Rxd5
- Tries
- 1.Kb1?
- 1...Rxd5
- 2.Qxe3#
- 1...Sxd5
- 2.Bg2#
- 1...bxc5
- 2.Sxc5#
- 2.Rxe6#
- 1...Re5
- 2.Sf6#
- 2.Qxe5#
- 1...Sf5
- 2.Bg2#
- 1...Rc6
- 2.Qe5#
- 1...Rd6
- 2.Qe5#
- 1...Rf6
- 2.Sxf6#
- 2.Qe5#
- 1...Re7
- 2.Sf6#
- 1...Re8
- 2.Sf6#
- 1...Sd1
- 2.Bg2#
- 1...Sf1
- 2.Bg2#
- 1...Sc2
- 2.Bg2#
- 1...Sg2
- 2.Bxg2#
- 1...Sg4
- 2.Bg2#
- 1...d2
- 2.Rxe3#
- 1...b5
- 2.Rxe6#
- 1...a2+!
- 1...Rxd5
- 1.Kxa3?
- 1...Rxd5
- 2.Qxe3#
- 1...Sxd5
- 2.Bg2#
- 1...bxc5
- 2.Sxc5#
- 2.Rxe6#
- 1...Re5
- 2.Sf6#
- 2.Qxe5#
- 1...Sf5
- 2.Bg2#
- 1...Rc6
- 2.Qe5#
- 1...Rd6
- 2.Qe5#
- 1...Rf6
- 2.Sxf6#
- 2.Qe5#
- 1...Re7
- 2.Sf6#
- 1...Re8
- 2.Sf6#
- 1...Sd1
- 2.Bg2#
- 1...Sf1
- 2.Bg2#
- 1...Sg2
- 2.Bxg2#
- 1...Sg4
- 2.Bg2#
- 1...d2
- 2.Rxe3#
- 1...b5
- 2.Rxe6#
- 1...Sc2+!
- 1...Rxd5
- 1.Bg4?
- threat
- 2.Bf3#
- 1...Rf6
- 2.Sxf6#
- 2.Qe5#
- 1...Sxg4!
- threat
- 1.Bxa3?
- 1...Sxd5
- 2.Bg2#
- 1...Re5
- 2.Sf6#
- 2.Qxe5#
- 1...Sf5
- 2.Bg2#
- 1...Rc6
- 2.Qe5#
- 1...Rd6
- 2.Qe5#
- 1...Rf6
- 2.Sxf6#
- 2.Qe5#
- 1...Re7
- 2.Sf6#
- 1...Re8
- 2.Sf6#
- 1...Sd1
- 2.Bg2#
- 1...Sf1
- 2.Bg2#
- 1...Sc2
- 2.Bg2#
- 1...Sg2
- 2.Bxg2#
- 1...Sg4
- 2.Bg2#
- 1...d2
- 2.Rxe3#
- 1...b5
- 2.Sc5#
- 2.Rxe6#
- 1...Rxd5!
- 1...Sxd5
- 1.Bb4?
- 1...Sxd5
- 2.Bg2#
- 1...Re5
- 2.Sf6#
- 2.Qxe5#
- 1...Sf5
- 2.Bg2#
- 1...Rc6
- 2.Qe5#
- 1...Rd6
- 2.Qe5#
- 1...Rf6
- 2.Sxf6#
- 2.Qe5#
- 1...Re7
- 2.Sf6#
- 1...Re8
- 2.Sf6#
- 1...Sd1
- 2.Bg2#
- 1...Sf1
- 2.Bg2#
- 1...Sc2
- 2.Bg2#
- 1...Sg2
- 2.Bxg2#
- 1...Sg4
- 2.Bg2#
- 1...d2
- 2.Rxe3#
- 1...b5
- 2.Sc5#
- 2.Rxe6#
- 1...Rxd5!
- 1...Sxd5
- 1.Bxb6?
- threat
- 2.Sc5#
- 1...Rxd5
- 2.Qxe3#
- 1...Re5
- 2.Sf6#
- 2.Qxe5#
- 1...Sf5
- 2.Bg2#
- 1...Rc6
- 2.Qe5#
- 1...axb6!
- threat
- 1.Be7?
- 1...Rxe7
- 2.Sf6#
- 1...Sxd5
- 2.Bg2#
- 1...Re5
- 2.Sf6#
- 2.Qxe5#
- 1...Sf5
- 2.Bg2#
- 1...Rc6
- 2.Qe5#
- 1...Rd6
- 2.Qe5#
- 1...Rf6
- 2.Sxf6#
- 2.Qe5#
- 1...Sd1
- 2.Bg2#
- 1...Sf1
- 2.Bg2#
- 1...Sc2
- 2.Bg2#
- 1...Sg2
- 2.Bxg2#
- 1...Sg4
- 2.Bg2#
- 1...d2
- 2.Rxe3#
- 1...b5
- 2.Sc5#
- 2.Rxe6#
- 1...Rxd5!
- 1...Rxe7
- 1.Bf8?
- 1...Sxd5
- 2.Bg2#
- 1...Re5
- 2.Sf6#
- 2.Qxe5#
- 1...Sf5
- 2.Bg2#
- 1...Rc6
- 2.Qe5#
- 1...Rd6
- 2.Qe5#
- 1...Rf6
- 2.Sxf6#
- 2.Qe5#
- 1...Re7
- 2.Sf6#
- 1...Re8
- 2.Sf6#
- 1...Sd1
- 2.Bg2#
- 1...Sf1
- 2.Bg2#
- 1...Sc2
- 2.Bg2#
- 1...Sg2
- 2.Bxg2#
- 1...Sg4
- 2.Bg2#
- 1...d2
- 2.Rxe3#
- 1...b5
- 2.Sc5#
- 2.Rxe6#
- 1...Rxd5!
- 1...Sxd5
- 1.Rcxa3?
- 1...Rxd5
- 2.Qxe3#
- 1...Sxd5
- 2.Bg2#
- 1...bxc5
- 2.Sxc5#
- 2.Rxe6#
- 1...Re5
- 2.Sf6#
- 2.Qxe5#
- 1...Sf5
- 2.Bg2#
- 1...Rc6
- 2.Qe5#
- 1...Rd6
- 2.Qe5#
- 1...Rf6
- 2.Sxf6#
- 2.Qe5#
- 1...Re7
- 2.Sf6#
- 1...Re8
- 2.Sf6#
- 1...Sd1
- 2.Bg2#
- 1...Sf1
- 2.Bg2#
- 1...Sc2
- 2.Bg2#
- 1...Sg2
- 2.Bxg2#
- 1...Sg4
- 2.Bg2#
- 1...d2
- 2.Rxe3#
- 1...b5
- 2.Rxe6#
- 1...c3!
- 1...Rxd5
- 1.Rxc4?
- threat
- 2.Rxd4#
- 1...Sxc4
- 2.Bg2#
- 1...bxc5
- 2.Sxc5#
- 2.Rxe6#
- 1...Sf5
- 2.Bg2#
- 1...Sc2
- 2.Bg2#
- 1...Rxc4!
- threat
- 1.Rxb6?
- threat
- 2.Rxe6#
- 1...Rxd5
- 2.Qxe3#
- 1...Rxb6
- 2.Qe5#
- 1...Re5
- 2.Sf6#
- 2.Qxe5#
- 1...Sf5
- 2.Bg2#
- 1...Rc6
- 2.Qe5#
- 1...Rd6
- 2.Qe5#
- 1...Rf6
- 2.Sxf6#
- 2.Qe5#
- 1...Re7
- 2.Sf6#
- 1...Re8
- 2.Sf6#
- 1...Sg4
- 2.Bg2#
- 1...axb6!
- threat
- 1.Rxa7?
- 1...Rxd5
- 2.Qxe3#
- 1...Sxd5
- 2.Bg2#
- 1...bxc5
- 2.Sxc5#
- 1...Re5
- 2.Sf6#
- 2.Qxe5#
- 1...Sf5
- 2.Bg2#
- 1...Rc6
- 2.Qe5#
- 1...Rd6
- 2.Qe5#
- 1...Rf6
- 2.Sxf6#
- 2.Qe5#
- 1...Re7
- 2.Sf6#
- 1...Re8
- 2.Sf6#
- 1...Sd1
- 2.Bg2#
- 1...Sf1
- 2.Bg2#
- 1...Sc2
- 2.Bg2#
- 1...Sg2
- 2.Bxg2#
- 1...Sg4
- 2.Bg2#
- 1...d2
- 2.Rxe3#
- 1...b5!
- 1...Rxd5
- 1.Qxe3+?
- 1...Kxd5
- 2.Qxe6#
- 1...Kxe3!
- 1...Kxd5
- 1.Qg3?
- threat
- 2.Qf3#
- 1...Rf6
- 2.Sxf6#
- 2.Qe5#
- 1...Kxd5!
- threat
- 1.Qg4+?
- 1...Kxd5
- 2.Qxe6#
- 1...Sxg4!
- 1...Kxd5
- 1.dxe6?
- threat
- 2.Sf6#
- 2.Qe5#
- 1...Sf5
- 2.Bg2#
- 1...Rd5
- 2.Sf6#
- 2.Qxe3#
- 1...Sg4
- 2.Bg2#
- 1...Sd5
- 2.Bg2#
- 2.Qe5#
- 1...Rxd7!
- threat
- 1.Kb1?
- Keys
- 1.Bd6!
- 1...Rxd5
- 2.Qf4#
- 1...Rxd6
- 2.Qe5#
- 1...Sxd5
- 2.Bg2#
- 1...Re5
- 2.Sf6#
- 2.Qxe5#
- 1...Sf5
- 2.Bg2#
- 1...Rf6
- 2.Sxf6#
- 2.Qe5#
- 1...Re7
- 2.Sf6#
- 1...Re8
- 2.Sf6#
- 1...Sd1
- 2.Bg2#
- 1...Sf1
- 2.Bg2#
- 1...Sc2
- 2.Bg2#
- 1...Sg2
- 2.Bxg2#
- 1...Sg4
- 2.Bg2#
- 1...d2
- 2.Rxe3#
- 1...b5
- 2.Sc5#
- 1...Rxd5
- 1.Bd6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- R(e);SBLOCK,XP(F)::QAR1(G),XS(c)
- R(h);N_GUARD::QAR1(G)
- R(h);N_GUARD::S(I)
- S(c);N_GUARD::B(D)
- S(c);N_GUARD::B(D),XS(c)
- S(c);N_GUARD,XP(F)::B(D)
- P(b);OGATE::R1(C),XS(c)
- P(g);OGATE::R(H),XR(h)
- Tries
- Try
- K(B);S_FLIGHT
- Vars
- R(e);SBLOCK,XP(F)::QAR1(G),XS(c)
- S(c);N_GUARD,XP(F)::B(D)
- S(c);N_GUARD::B(D)
- R(h);N_GUARD::QAR1(G)
- R(h);N_GUARD::S(I)
- S(c);N_GUARD::B(D),XS(c)
- P(b);OGATE::R1(C),XS(c)
- P(g);OGATE::R(H),XR(h)
- Refutation
- P(a);CHECK
- Try
- K(B);P-FLIGHT,XP(a)
- Vars
- R(e);SBLOCK,XP(F)::QAR1(G),XS(c)
- S(c);N_GUARD,XP(F)::B(D)
- S(c);N_GUARD::B(D)
- R(h);N_GUARD::QAR1(G)
- R(h);N_GUARD::S(I)
- S(c);N_GUARD::B(D),XS(c)
- P(b);OGATE::R1(C),XS(c)
- P(g);OGATE::R(H),XR(h)
- Refutation
- S(c);CHECK
- Try
- B(D);
- Threat
- B(D)
- Refutation
- S(c);XB(D)
- Try
- B(E);XP(a)
- Vars
- S(c);N_GUARD,XP(F)::B(D)
- S(c);N_GUARD::B(D)
- R(h);N_GUARD::QAR1(G)
- R(h);N_GUARD::S(I)
- S(c);N_GUARD::B(D),XS(c)
- P(b);OGATE::R1(C),XS(c)
- Refutation
- R(e);XP(F)
- Try
- B(E);
- Vars
- S(c);N_GUARD,XP(F)::B(D)
- S(c);N_GUARD::B(D)
- R(h);N_GUARD::QAR1(G)
- R(h);N_GUARD::S(I)
- S(c);N_GUARD::B(D),XS(c)
- P(b);OGATE::R1(C),XS(c)
- Refutation
- R(e);XP(F)
- Try
- B(E);XP(g)
- Threat
- S(I)
- Vars
- R(e);SBLOCK,XP(F)::QAR1(G),XS(c)
- S(c);N_GUARD::B(D)
- R(h);N_GUARD::QAR1(G)
- Refutation
- P(j);XB(E)
- Try
- B(E);
- Vars
- R(h);N_GUARD,XB(E)::S(I)
- S(c);N_GUARD,XP(F)::B(D)
- S(c);N_GUARD::B(D)
- R(h);N_GUARD::QAR1(G)
- S(c);N_GUARD::B(D),XS(c)
- P(b);OGATE::R1(C),XS(c)
- Refutation
- R(e);XP(F)
- Try
- B(E);
- Vars
- S(c);N_GUARD,XP(F)::B(D)
- S(c);N_GUARD::B(D)
- R(h);N_GUARD::QAR1(G)
- R(h);N_GUARD::S(I)
- S(c);N_GUARD::B(D),XS(c)
- P(b);OGATE::R1(C),XS(c)
- Refutation
- R(e);XP(F)
- Try
- R(C);XP(a)
- Vars
- R(e);SBLOCK,XP(F)::QAR1(G),XS(c)
- S(c);N_GUARD,XP(F)::B(D)
- S(c);N_GUARD::B(D)
- R(h);N_GUARD::QAR1(G)
- R(h);N_GUARD::S(I)
- S(c);N_GUARD::B(D),XS(c)
- P(b);OGATE::R1(C),XS(c)
- P(g);OGATE::R(H),XR(h)
- Refutation
- P(d);
- Try
- R(C);P_PINR(e),XP(d)
- Threat
- R1(C),XR(e)
- Vars
- S(c);N_GUARD,N_SPINR(e),XR(C)::B(D)
- S(c);N_GUARD::B(D)
- Refutation
- R(e);N_SPINR(e),XR(C)
- Try
- R(H);XP(g)
- Threat
- R(H),XR(h)
- Vars
- R(e);SBLOCK,XP(F)::QAR1(G),XS(c)
- R(h);N_GUARD,XR(H)::QAR1(G)
- S(c);N_GUARD::B(D)
- R(h);N_GUARD::QAR1(G)
- R(h);N_GUARD::S(I)
- Refutation
- P(j);XR(H)
- Try
- R(H);XP(j)
- Vars
- R(e);SBLOCK,XP(F)::QAR1(G),XS(c)
- S(c);N_GUARD,XP(F)::B(D)
- P(g);XB(E)::S(I),XP(g)
- S(c);N_GUARD::B(D)
- R(h);N_GUARD::QAR1(G)
- R(h);N_GUARD::S(I)
- S(c);N_GUARD::B(D),XS(c)
- P(b);OGATE::R1(C),XS(c)
- Refutation
- P(g);
- Try
- Q(G);CHECK,XS(c)
- Vars
- K(f);OGATE,S_FLIGHT,XP(F)::QAB1(G),XR(h)
- Refutation
- K(f);P-FLIGHT,P_SPINP(b),P_SPINR(e),XQ(G)
- Try
- Q(G);
- Threat
- QAB1(G)
- Refutation
- K(f);S_FLIGHT,XP(F)
- Try
- Q(G);CHECK
- Vars
- K(f);S_FLIGHT,XP(F)::QAB1(G),XR(h)
- Refutation
- S(c);XQ(G)
- Try
- P(F);XR(h)
- Threat
- DUALS(2)
- Vars
- S(c);N_GUARD::B(D)
- Refutation
- R(e);XS(I)
- Try
- Actual
- B(E);
- Vars
- R(e);SBLOCK,XP(F)::QAR1(G)
- R(h);N_GUARD,XB(E)::QAR1(G)
- S(c);N_GUARD,XP(F)::B(D)
- S(c);N_GUARD::B(D)
- R(h);N_GUARD::S(I)
- S(c);N_GUARD::B(D),XS(c)
- P(b);OGATE::R1(C),XS(c)
- P(g);N_GUARD::S(I)
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).