MESON Chess Problem Database
Problem Display
PID: 648 (5n2/1pN5/bP1Kp1p1/2Rp1rP1/2pk4/8/1PBpQ3/3r4 w - - 0 1)
Warton, Edwin
British Chess Magazine, 1917
#2
8 + 11
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qxd2#
- 1...Rb1
- 2.Qxd2#
- 1...Rc1
- 2.Qxd2#
- 1...Re1
- 2.Qxd2#
- 1...Rdf1
- 2.Qxd2#
- 1...Rg1
- 2.Qxd2#
- 1...Rh1
- 2.Qxd2#
- 1...Rff1
- 2.Qe5#
- 1...Rf2
- 2.Qxf2#
- 2.Qe5#
- 1...Rf3
- 2.Qe5#
- 1...Rf4
- 2.Qe5#
- 1...Re5
- 2.Qxe5#
- 1...Rxg5
- 2.Qf2#
- 1...Rf6
- 2.Qe5#
- 1...Rf7
- 2.Qe5#
- 1...Bb5
- 2.Sxb5#
- 1...Sd7
- 2.Sxe6#
- 1...Sh7
- 2.Sxe6#
- 1...c3
- 2.bxc3#
- 1...e5
- 2.Rxd5#
- 1...Ra1
- Tries
- 1.Bb1?
- 1...Rxg5
- 2.Qf2#
- 1...Sd7
- 2.Sxe6#
- 1...Rc1
- 2.Qxd2#
- 1...Re1
- 2.Qxd2#
- 1...Rdf1
- 2.Qxd2#
- 1...Rg1
- 2.Qxd2#
- 1...Rh1
- 2.Qxd2#
- 1...Rff1
- 2.Qe5#
- 1...Rf2
- 2.Qxf2#
- 2.Qe5#
- 1...Rf3
- 2.Qe5#
- 1...Rf4
- 2.Qe5#
- 1...Re5
- 2.Qxe5#
- 1...Rf6
- 2.Qe5#
- 1...Rf7
- 2.Qe5#
- 1...Bb5
- 2.Sxb5#
- 1...Sh7
- 2.Sxe6#
- 1...c3
- 2.bxc3#
- 1...e5
- 2.Rxd5#
- 1...Rxb1!
- 1...Rxg5
- 1.Bxf5?
- threat
- 2.Qf2#
- 2.Qe5#
- 1...exf5
- 2.Rxd5#
- 1...Sd7
- 2.Sxe6#
- 2.Qf2#
- 1...Re1
- 2.Qxd2#
- 1...Rf1
- 2.Qxd2#
- 2.Qe5#
- 1...e5
- 2.Rxd5#
- 2.Qf2#
- 2.Qxe5#
- 1...gxf5!
- threat
- 1.Rxc4+?
- 1...dxc4
- 2.Qe4#
- 1...Bxc4!
- 1...dxc4
- 1.Ra5?
- 1...Rxg5
- 2.Qf2#
- 1...Sd7
- 2.Sxe6#
- 1...Ra1
- 2.Qxd2#
- 1...Rb1
- 2.Qxd2#
- 1...Rc1
- 2.Qxd2#
- 1...Re1
- 2.Qxd2#
- 1...Rdf1
- 2.Qxd2#
- 1...Rg1
- 2.Qxd2#
- 1...Rh1
- 2.Qxd2#
- 1...Rff1
- 2.Qe5#
- 1...Rf2
- 2.Qxf2#
- 2.Qe5#
- 1...Rf3
- 2.Qe5#
- 1...Rf4
- 2.Qe5#
- 1...Re5
- 2.Qxe5#
- 1...Rf6
- 2.Qe5#
- 1...Rf7
- 2.Qe5#
- 1...Bb5
- 2.Sxb5#
- 1...Sh7
- 2.Sxe6#
- 1...e5
- 2.Rxd5#
- 1...c3!
- 1...Rxg5
- 1.Qf3?
- threat
- 2.Qc3#
- 1...c3
- 2.Qxc3#
- 2.bxc3#
- 1...Rxf3!
- threat
- 1.Qg4+?
- 1...Rf4
- 2.Qxf4#
- 1...Ke3!
- 1...Rf4
- 1.Bb1?
- Keys
- 1.Rb5!
- 1...Rxg5
- 2.Qf2#
- 1...Bxb5
- 2.Sxb5#
- 1...Sd7
- 2.Sxe6#
- 1...Ra1
- 2.Qxd2#
- 1...Rb1
- 2.Qxd2#
- 1...Rc1
- 2.Qxd2#
- 1...Re1
- 2.Qxd2#
- 1...Rdf1
- 2.Qxd2#
- 1...Rg1
- 2.Qxd2#
- 1...Rh1
- 2.Qxd2#
- 1...Rff1
- 2.Qe5#
- 1...Rf2
- 2.Qxf2#
- 2.Qe5#
- 1...Rf3
- 2.Qe5#
- 1...Rf4
- 2.Qe5#
- 1...Re5
- 2.Qxe5#
- 1...Rf6
- 2.Qe5#
- 1...Rf7
- 2.Qe5#
- 1...Sh7
- 2.Sxe6#
- 1...c3
- 2.Qd3#
- 1...e5
- 2.Rxd5#
- 1...Rxg5
- 1.Rb5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD::QAR2(C),XP(b)
- R(f);N_GUARD::QAB1(C)
- R(f);N_GUARD::QAB1(C),XR(f)
- R(f);N_GUARD,XP(E)::QAB(C)
- B(g);N_GUARD::S(H),XB(g)
- S(k);N_GUARD::S(H),XP(h)
- P(c);OGATE::P(A),XP(c)
- P(h);N_GUARD,S_CUTR(f)::R1(D),XP(e)
- Tries
- Try
- B(B);
- Vars
- R(f);N_GUARD,XP(E)::QAB(C)
- S(k);N_GUARD::S(H),XP(h)
- R(a);N_GUARD::QAR2(C),XP(b)
- R(f);N_GUARD::QAB1(C)
- R(f);N_GUARD::QAB1(C),XR(f)
- B(g);N_GUARD::S(H),XB(g)
- P(c);OGATE::P(A),XP(c)
- P(h);N_GUARD,S_CUTR(f)::R1(D),XP(e)
- Refutation
- R(a);XB(B)
- Try
- B(B);XR(f)
- Threat
- DUALS(2)
- Vars
- P(h);N_GUARD,XB(B)::R1(D),XP(e)
- R(a);N_GUARD::QAR2(C),XP(b)
- Refutation
- P(i);XB(B)
- Try
- R(D);CHECK,XP(c)
- Vars
- P(e);SBLOCK,XR(D)::QAR1(C)
- Refutation
- B(g);XR(D)
- Try
- R(D);
- Vars
- R(f);N_GUARD,XP(E)::QAB(C)
- S(k);N_GUARD::S(H),XP(h)
- R(a);N_GUARD::QAR2(C),XP(b)
- R(f);N_GUARD::QAB1(C)
- R(f);N_GUARD::QAB1(C),XR(f)
- B(g);N_GUARD::S(H),XB(g)
- P(h);N_GUARD,S_CUTR(f)::R1(D),XP(e)
- Refutation
- P(c);
- Try
- Q(C);
- Threat
- QAB1(C)
- Refutation
- R(f);XQ(C)
- Try
- Q(C);CHECK
- Vars
- R(f);N_GUARD,P_SPINR(f)::QAR2(C),XR(f)
- Refutation
- K(d);S_FLIGHT
- Try
- Actual
- R(D);
- Vars
- R(f);N_GUARD,XP(E)::QAB(C)
- B(g);XR(D)::S(H),XB(g)
- S(k);N_GUARD::S(H),XP(h)
- R(a);N_GUARD::QAR2(C),XP(b)
- R(f);N_GUARD::QAB1(C)
- R(f);N_GUARD::QAB1(C),XR(f)
- P(c);N_GUARD::QAR1(C)
- P(h);N_GUARD,S_CUTR(f)::R1(D),XP(e)
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).