MESON Chess Problem Database
Problem Display
PID: 19059 (4K3/4P1b1/1p6/1R3p2/P1kP1r2/Pp4Q1/1Br1P3/2nN1n2 w - - 0 1)
Packer, GFH
3rd Prize, Western Daily Mercury, 1910
#2
10 + 9
| 2638 | White to Play | 1913 |
| 5559 | ECSC | 2005 |
SOLUTION
- SOUND
- Sets
- 1...Rxb2
- 2.Qc3#
- 1...Rd2
- 2.Qc3#
- 1...Rxe2
- 2.Qc3#
- 1...Rc3
- 2.Qxc3#
- 1...Rf2
- 2.Qc7#
- 1...Rf3
- 2.Qc7#
- 1...Rxd4
- 2.Qc7#
- 1...Re4
- 2.Qc7#
- 1...Rg4
- 2.Qc7#
- 1...Rh4
- 2.Qc7#
- 1...Bxd4
- 2.Qg8#
- 1...Be5
- 2.Qg8#
- 1...Bf6
- 2.Qg8#
- 1...Bh6
- 2.Qg8#
- 1...Bf8
- 2.Qg8#
- 1...Bh8
- 2.Qg8#
- 1...Sa2
- 2.Qxb3#
- 2.Qd3#
- 1...Sxe2
- 2.Qxb3#
- 1...Sd3
- 2.Qxd3#
- 2.exd3#
- 1...Sd2
- 2.Se3#
- 1...Sh2
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Sxg3
- 2.Se3#
- 1...Rxb2
- Tries
- 1.Kd7?
- 1...Rxb2
- 2.Qc3#
- 1...Rxe2
- 2.Qc3#
- 1...Bxd4
- 2.Qg8#
- 1...Sxe2
- 2.Qxb3#
- 1...Sxg3
- 2.Se3#
- 1...Rc3
- 2.Qxc3#
- 1...Rd2
- 2.Qc3#
- 1...Rf2
- 2.Qc7#
- 1...Rf3
- 2.Qc7#
- 1...Re4
- 2.Qc7#
- 1...Rg4
- 2.Qc7#
- 1...Rh4
- 2.Qc7#
- 1...Be5
- 2.Qg8#
- 1...Bf6
- 2.Qg8#
- 1...Bh6
- 2.Qg8#
- 1...Bf8
- 2.Qg8#
- 1...Bh8
- 2.Qg8#
- 1...Sa2
- 2.Qxb3#
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 2.exd3#
- 1...Sd2
- 2.Se3#
- 1...Sh2
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Rxd4+!
- 1...Rxb2
- 1.Kd8?
- 1...Rxb2
- 2.Qc3#
- 1...Rxe2
- 2.Qc3#
- 1...Bxd4
- 2.Qg8#
- 1...Sxe2
- 2.Qxb3#
- 1...Sxg3
- 2.Se3#
- 1...Rc3
- 2.Qxc3#
- 1...Rd2
- 2.Qc3#
- 1...Rf2
- 2.Qc7#
- 1...Rf3
- 2.Qc7#
- 1...Re4
- 2.Qc7#
- 1...Rg4
- 2.Qc7#
- 1...Rh4
- 2.Qc7#
- 1...Be5
- 2.Qg8#
- 1...Bf6
- 2.Qg8#
- 1...Bh6
- 2.Qg8#
- 1...Bf8
- 2.Qg8#
- 1...Bh8
- 2.Qg8#
- 1...Sa2
- 2.Qxb3#
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 2.exd3#
- 1...Sd2
- 2.Se3#
- 1...Sh2
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Rxd4+!
- 1...Rxb2
- 1.Ba1?
- 1...Rxe2
- 2.Qc3#
- 1...Rxd4
- 2.Qc7#
- 1...Bxd4
- 2.Qg8#
- 1...Sxe2
- 2.Qxb3#
- 1...Sxg3
- 2.Se3#
- 1...Rb2
- 2.Qc3#
- 1...Rc3
- 2.Qxc3#
- 1...Ra2
- 2.Qc3#
- 1...Rd2
- 2.Qc3#
- 1...Rf2
- 2.Qc7#
- 1...Rf3
- 2.Qc7#
- 1...Re4
- 2.Qc7#
- 1...Rg4
- 2.Qc7#
- 1...Rh4
- 2.Qc7#
- 1...Be5
- 2.Qg8#
- 1...Bf6
- 2.Qg8#
- 1...Bh6
- 2.Qg8#
- 1...Bf8
- 2.Qg8#
- 1...Bh8
- 2.Qg8#
- 1...Sa2
- 2.Qxb3#
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 2.exd3#
- 1...Sd2
- 2.Se3#
- 1...Sh2
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...b2!
- 1...Rxe2
- 1.Kd7?
- Keys
- 1.Sc3!
- threat
- 2.Rb4#
- 1...Kxd4
- 2.Qxf4#
- 1...Rxc3
- 2.Qxc3#
- 1...Rxd4
- 2.Qc7#
- 1...Bxd4
- 2.Qg8#
- 1...Sa2
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- threat
- 1.Sc3!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 18
- Sets
- R(c);N_GUARD,XB(B)::QAR1(E)
- R(c);N_GUARD::QAR1(E)
- R(c);N_GUARD,P_PINP(I),XP(C)::QAR1(E)
- R(c);N_GUARD::QAR1(E),XR(c)
- R(f);OGATE::QAR(E)
- R(f);OGATE,XP(G)::QAR(E)
- R(f);OGATE,P_PINP(I)::QAR(E)
- B(i);OGATE,XP(G)::QAB(E)
- B(i);OGATE::QAB(E)
- S(a);N_GUARD,XP(C)::QAB1(E),XP(d)
- S(b);N_GUARD::S(A)
- S(b);N_GUARD::S(A),XS(b)
- S(b);N_GUARD,XQ(E)::S(A)
- Tries
- Try
- K(J);S_FLIGHT
- Vars
- R(c);N_GUARD,XB(B)::QAR1(E)
- R(c);N_GUARD,XP(C)::QAR1(E)
- B(i);OGATE,XP(G)::QAB(E)
- S(a);N_GUARD,XP(C)::QAB1(E),XP(d)
- S(b);N_GUARD,XQ(E)::S(A)
- R(c);N_GUARD::QAR1(E),XR(c)
- R(c);N_GUARD,P_PINP(G)::QAR1(E)
- R(f);OGATE::QAR(E)
- B(i);OGATE::QAB(E)
- S(b);N_GUARD::S(A)
- S(b);N_GUARD::S(A),XS(b)
- Refutation
- R(f);CHECK,XP(G)
- Try
- K(J);P-FLIGHT
- Vars
- R(c);N_GUARD,XB(B)::QAR1(E)
- R(c);N_GUARD,XP(C)::QAR1(E)
- B(i);OGATE,XP(G)::QAB(E)
- S(a);N_GUARD,XP(C)::QAB1(E),XP(d)
- S(b);N_GUARD,XQ(E)::S(A)
- R(c);N_GUARD::QAR1(E),XR(c)
- R(c);N_GUARD,P_PINP(G)::QAR1(E)
- R(f);OGATE::QAR(E)
- B(i);OGATE::QAB(E)
- B(i);OGATE,P_PINP(I)::QAB(E)
- S(b);N_GUARD::S(A)
- S(b);N_GUARD::S(A),XS(b)
- Refutation
- R(f);CHECK,XP(G)
- Try
- B(B);
- Vars
- R(c);N_GUARD,P_PINP(I),XP(C)::QAR1(E)
- R(f);OGATE,XP(G)::QAR(E)
- B(i);OGATE,XP(G)::QAB(E)
- S(a);N_GUARD,XP(C)::QAB1(E),XP(d)
- S(b);N_GUARD,XQ(E)::S(A)
- R(c);N_GUARD::QAR1(E)
- R(c);N_GUARD::QAR1(E),XR(c)
- R(f);OGATE::QAR(E)
- R(f);OGATE,P_PINP(I)::QAR(E)
- B(i);OGATE::QAB(E)
- S(b);N_GUARD::S(A)
- S(b);N_GUARD::S(A),XS(b)
- Refutation
- P(d);
- Try
- Actual
- S(A);
- Threat
- R1(H)
- Vars
- K(e);OGATEB,P-FLIGHT,XP(G)::QAR2(E),XR(f)
- R(c);OGATE,XS(A)::QAR1(E),XR(c)
- R(f);OGATE,SBLOCK,XP(G)::QAR(E)
- B(i);OGATE,SBLOCK,XP(G)::QAB(E)
- S(a);N_GUARD::QAB1(E)
- S(a);N_GUARD::QAB1(E),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).