MESON Chess Problem Database
Problem Display
PID: 157492 (8/B6Q/K2Rp1r1/1P2nNPP/4k1NR/5nP1/4B1P1/8 w - - 0 1)
Francey, James
Sports Referee, 1930
#2
13 + 5
| 15148 | Sadier Collection | 2016 |
SOLUTION
- SOUND
- Sets
- 1...Rxg5
- 2.Sf2#
- 2.Sf6#
- 1...Rf6
- 2.Sf2#
- 2.Sxf6#
- 1...Rh6
- 2.Sf2#
- 2.Sf6#
- 1...Rg7
- 2.Sf2#
- 2.Sf6#
- 1...Rg8
- 2.Sf2#
- 2.Sf6#
- 1...Sd3
- 2.Bxd3#
- 1...Sc4
- 2.Bd3#
- 1...Sc6
- 2.Bd3#
- 1...Sd7
- 2.Bd3#
- 1...Sf7
- 2.Bd3#
- 1...exf5
- 2.Sf2#
- 2.Sf6#
- 1...Rxg5
- Tries
- 1.Sge3+?
- 1...Sxh4
- 2.Rd4#
- 1...Sg4!
- 1...Sxh4
- 1.Sgh6+?
- 1...Sxh4
- 2.Rd4#
- 1...Sg4!
- 1...Sxh4
- 1.Sfe3?
- threat
- 2.Sf2#
- 2.Sf6#
- 1...Sd4
- 2.Rxd4#
- 1...Sd3
- 2.Bxd3#
- 2.Bxf3#
- 2.Qxg6#
- 2.Qb7#
- 2.gxf3#
- 1...Sc4
- 2.Bd3#
- 2.Bxf3#
- 2.Qxg6#
- 2.Qb7#
- 2.gxf3#
- 1...Sc6
- 2.Bd3#
- 2.Bxf3#
- 2.Qxg6#
- 2.gxf3#
- 1...Sd7
- 2.Bd3#
- 2.Bxf3#
- 2.Qxg6#
- 2.gxf3#
- 1...Sf7
- 2.Bd3#
- 2.Bxf3#
- 2.Qxg6#
- 2.gxf3#
- 1...Sxg4!
- threat
- 1.Sfh6?
- threat
- 2.Sf2#
- 2.Sf6#
- 1...Sd4
- 2.Rxd4#
- 1...Sd3
- 2.Bxd3#
- 2.Bxf3#
- 2.Qxg6#
- 2.Qb7#
- 2.gxf3#
- 1...Sc4
- 2.Bd3#
- 2.Bxf3#
- 2.Qxg6#
- 2.Qb7#
- 2.gxf3#
- 1...Sc6
- 2.Bd3#
- 2.Bxf3#
- 2.Qxg6#
- 2.gxf3#
- 1...Sd7
- 2.Bd3#
- 2.Bxf3#
- 2.Qxg6#
- 2.gxf3#
- 1...Sf7
- 2.Bd3#
- 2.Bxf3#
- 2.Qxg6#
- 2.gxf3#
- 1...Sxg4!
- threat
- 1.Se7?
- threat
- 2.Sf2#
- 2.Sf6#
- 1...Sd4
- 2.Rxd4#
- 1...Sd3
- 2.Bxd3#
- 2.Bxf3#
- 2.Qxg6#
- 2.gxf3#
- 1...Sc4
- 2.Bd3#
- 2.Bxf3#
- 2.Qxg6#
- 2.gxf3#
- 1...Sc6
- 2.Bd3#
- 2.Bxf3#
- 2.Qxg6#
- 2.gxf3#
- 1...Sd7
- 2.Bd3#
- 2.Bxf3#
- 2.Qxg6#
- 2.gxf3#
- 1...Sf7
- 2.Bd3#
- 2.Bxf3#
- 2.Qxg6#
- 2.gxf3#
- 1...Sxg4!
- threat
- 1.Sg7?
- threat
- 2.Sf2#
- 2.Sf6#
- 1...Sd4
- 2.Rxd4#
- 1...Sd3
- 2.Bxd3#
- 2.Bxf3#
- 2.Qxg6#
- 2.gxf3#
- 1...Sc4
- 2.Bd3#
- 2.Bxf3#
- 2.Qxg6#
- 2.gxf3#
- 1...Sc6
- 2.Bd3#
- 2.Bxf3#
- 2.Qxg6#
- 2.gxf3#
- 1...Sd7
- 2.Bd3#
- 2.Bxf3#
- 2.Qxg6#
- 2.gxf3#
- 1...Sf7
- 2.Bd3#
- 2.Bxf3#
- 2.Qxg6#
- 2.gxf3#
- 1...Sxg4!
- threat
- 1.Qxg6?
- threat
- 2.Sf2#
- 2.Sf6#
- 1...Sxg6
- 2.Bd3#
- 1...Sd3
- 2.Sfe3#
- 2.Sd4#
- 2.Sfh6#
- 2.Se7#
- 2.Sg7#
- 2.Bxd3#
- 2.Bxf3#
- 2.gxf3#
- 1...Sc4
- 2.Sfe3#
- 2.Sd4#
- 2.Sfh6#
- 2.Se7#
- 2.Sg7#
- 2.Bd3#
- 2.Bxf3#
- 2.gxf3#
- 1...Sc6
- 2.Sfe3#
- 2.Sd4#
- 2.Sfh6#
- 2.Se7#
- 2.Sg7#
- 2.Bd3#
- 2.Bxf3#
- 2.gxf3#
- 1...Sd7
- 2.Sfe3#
- 2.Sd4#
- 2.Sfh6#
- 2.Se7#
- 2.Sg7#
- 2.Bd3#
- 2.Bxf3#
- 2.gxf3#
- 1...Sf7
- 2.Sfe3#
- 2.Sd4#
- 2.Sfh6#
- 2.Se7#
- 2.Sg7#
- 2.Bd3#
- 2.Bxf3#
- 2.gxf3#
- 1...Sxg4!
- threat
- 1.Qb7+?
- 1...Sc6
- 2.Bd3#
- 1...Kxf5!
- 1...Sc6
- 1.gxf3+?
- 1...Sxf3
- 2.Bd3#
- 1...Kxf5!
- 1...Sxf3
- 1.Sge3+?
- Keys
- 1.Rd5!
- 1...exd5+
- 2.Sd6#
- 1...exf5+
- 2.Sf6#
- 1...Kxd5
- 2.Sge3#
- 1...Kxf5
- 2.Qxg6#
- 1...Rxg5
- 2.Sf6#
- 1...Sxh4
- 2.Rxe5#
- 1...Sxg5
- 2.Rxe5#
- 1...Sxg4
- 2.Bxf3#
- 1...Rf6
- 2.Sxf6#
- 1...Rh6
- 2.Sf6#
- 1...Rg7
- 2.Sf6#
- 1...Rg8
- 2.Sf6#
- 1...Se1
- 2.Rxe5#
- 1...Sg1
- 2.Rxe5#
- 1...Sd2
- 2.Rxe5#
- 1...Sh2
- 2.Rxe5#
- 1...Sd4
- 2.Rxe5#
- 1...Sd3
- 2.Sf6#
- 2.Bxf3#
- 1...Sc4
- 2.Sf6#
- 2.Bxf3#
- 1...Sc6
- 2.Sf6#
- 2.Bxf3#
- 1...Sd7
- 2.Sf6#
- 2.Bxf3#
- 1...Sf7
- 2.Sf6#
- 2.Bxf3#
- 1...exd5+
- 1.Rd5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 17
- REMOVED MATES = 5
- Sets
- S(c);N_GUARD::B(A),XS(c)
- S(c);N_GUARD::B(A)
- Tries
- Try
- S(D);CHECK
- Vars
- S(a);XR(E)::R1(K)
- Refutation
- S(c);P_SPINS(c)
- Try
- S(D);CHECK
- Vars
- S(a);XR(E)::R1(K)
- Refutation
- S(c);P_SPINS(c)
- Try
- S(G);P_PINR(e)
- Threat
- DUALS(2)
- Vars
- S(a);N_GUARD::R1(K),XS(a)
- Refutation
- S(c);P_SPINS(c),XS(D)
- Try
- S(G);P_PINR(e)
- Threat
- DUALS(2)
- Vars
- S(a);N_GUARD::R1(K),XS(a)
- Refutation
- S(c);P_SPINS(c),XS(D)
- Try
- S(G);P_PINR(e)
- Threat
- DUALS(2)
- Vars
- S(a);N_GUARD::R1(K),XS(a)
- Refutation
- S(c);P_SPINS(c),XS(D)
- Try
- S(G);P_PINR(e)
- Threat
- DUALS(2)
- Vars
- S(a);N_GUARD::R1(K),XS(a)
- Refutation
- S(c);P_SPINS(c),XS(D)
- Try
- Q(M);XR(e)
- Threat
- DUALS(2)
- Vars
- S(c);N_GUARD,XQ(M)::B(A)
- Refutation
- S(c);P_SPINS(c),XS(D)
- Try
- Q(M);CHECK
- Vars
- S(c);P_SPINS(c)::B(A)
- Refutation
- K(b);S_FLIGHT,XS(G)
- Try
- P(B);CHECK,XS(a)
- Vars
- S(c);SBLOCK,XP(B)::B(A)
- Refutation
- K(b);P_SPINR(e),S_FLIGHT,XS(G)
- Try
- Actual
- R(K);
- Vars
- P(d);CHECK,SBLOCK,XR(K)::S(G)
- P(d);CHECK,SBLOCK,XS(G)::R(E)+S(D),DCHECK
- K(b);S_FLIGHT,XR(K)::S(D)
- K(b);OGATEB,P_SPINR(e),P_SPINS(c),S_FLIGHT,XS(G)::QAB1(M),XR(e)
- R(e);XP(H)::R(E)+S(D),DCHECK
- S(a);N_GUARD,XR(E)::R1(K),XS(c)
- S(a);N_GUARD,XP(H)::R1(K),XS(c)
- S(c);N_GUARD,P_SPINS(c),XS(D)::B(A),XS(a)
- R(e);::R(E)+S(D),DCHECK,XR(e)
- R(e);::R(E)+S(D),DCHECK
- S(a);N_GUARD::R1(K),XS(c)
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).