MESON Chess Problem Database
Problem Display
PID: 74653 (8/8/2pN4/2B5/5r2/1p1k2N1/1K1p3p/2n4Q w - - 0 1)
Packer, GFH
Chess Amateur (The), 1910
#2
5 + 7
| 15351 | SCPF/BCPS Black Books | 2016 |
SOLUTION
- SOUND
- Sets
- 1...Rf1
- 2.Qe4#
- 1...Rf2
- 2.Qe4#
- 1...Rf3
- 2.Qxf3#
- 1...Ra4
- 2.Qf3#
- 1...Rb4
- 2.Qf3#
- 1...Rc4
- 2.Qf3#
- 1...Rd4
- 2.Qf3#
- 1...Re4
- 2.Qxe4#
- 1...Rg4
- 2.Qf3#
- 1...Rh4
- 2.Qf3#
- 1...Rf5
- 2.Qe4#
- 1...Rf6
- 2.Qe4#
- 1...Rf7
- 2.Qe4#
- 1...Rf8
- 2.Qe4#
- 1...Sa2
- 2.Qb1#
- 1...Se2
- 2.Qb1#
- 1...d1Q
- 2.Qxd1#
- 1...d1S+
- 2.Qxd1#
- 1...d1B
- 2.Qxd1#
- 1...d1R
- 2.Qxd1#
- 1...Rf1
- Tries
- 1.Se2?
- threat
- 2.Sxf4#
- 1...d1S+
- 2.Qxd1#
- 1...Sxe2
- 2.Qb1#
- 1...Rd4
- 2.Qf3#
- 1...d1Q
- 2.Qxd1#
- 1...d1B
- 2.Qxd1#
- 1...d1R
- 2.Qxd1#
- 1...Rf1
- 2.Qe4#
- 1...Rf2
- 2.Qe4#
- 1...Rf3
- 2.Qxf3#
- 1...Ra4
- 2.Qf3#
- 1...Rb4
- 2.Qf3#
- 1...Rc4
- 2.Qf3#
- 1...Re4
- 2.Qxe4#
- 1...Rg4
- 2.Qf3#
- 1...Rh4
- 2.Qf3#
- 1...Rf5
- 2.Qe4#
- 1...Rf6
- 2.Qe4#
- 1...Rf7
- 2.Qe4#
- 1...Rf8
- 2.Qe4#
- 1...Kxe2!
- threat
- 1.Bf2?
- 1...d1S+
- 2.Qxd1#
- 1...Rxf2
- 2.Qe4#
- 1...d1Q
- 2.Qxd1#
- 1...d1B
- 2.Qxd1#
- 1...d1R
- 2.Qxd1#
- 1...Rf3
- 2.Qxf3#
- 1...Ra4
- 2.Qf3#
- 1...Rb4
- 2.Qf3#
- 1...Rc4
- 2.Qf3#
- 1...Rd4
- 2.Qf3#
- 1...Re4
- 2.Qxe4#
- 1...Rg4
- 2.Qf3#
- 1...Rh4
- 2.Qf3#
- 1...Rf5
- 2.Qe4#
- 1...Rf6
- 2.Qe4#
- 1...Rf7
- 2.Qe4#
- 1...Rf8
- 2.Qe4#
- 1...Sa2
- 2.Qb1#
- 2.Qf1#
- 1...Se2
- 2.Qb1#
- 1...c5!
- 1...d1S+
- 1.Bb6?
- 1...d1S+
- 2.Qxd1#
- 1...Rd4
- 2.Qf3#
- 1...d1Q
- 2.Qxd1#
- 1...d1B
- 2.Qxd1#
- 1...d1R
- 2.Qxd1#
- 1...Rf1
- 2.Qe4#
- 1...Rf2
- 2.Qe4#
- 1...Rf3
- 2.Qxf3#
- 1...Ra4
- 2.Qf3#
- 1...Rb4
- 2.Qf3#
- 1...Rc4
- 2.Qf3#
- 1...Re4
- 2.Qxe4#
- 1...Rg4
- 2.Qf3#
- 1...Rh4
- 2.Qf3#
- 1...Rf5
- 2.Qe4#
- 1...Rf6
- 2.Qe4#
- 1...Rf7
- 2.Qe4#
- 1...Rf8
- 2.Qe4#
- 1...Sa2
- 2.Qb1#
- 1...Se2
- 2.Qb1#
- 1...c5!
- 1...d1S+
- 1.Ba7?
- 1...d1S+
- 2.Qxd1#
- 1...Rd4
- 2.Qf3#
- 1...d1Q
- 2.Qxd1#
- 1...d1B
- 2.Qxd1#
- 1...d1R
- 2.Qxd1#
- 1...Rf1
- 2.Qe4#
- 1...Rf2
- 2.Qe4#
- 1...Rf3
- 2.Qxf3#
- 1...Ra4
- 2.Qf3#
- 1...Rb4
- 2.Qf3#
- 1...Rc4
- 2.Qf3#
- 1...Re4
- 2.Qxe4#
- 1...Rg4
- 2.Qf3#
- 1...Rh4
- 2.Qf3#
- 1...Rf5
- 2.Qe4#
- 1...Rf6
- 2.Qe4#
- 1...Rf7
- 2.Qe4#
- 1...Rf8
- 2.Qe4#
- 1...Sa2
- 2.Qb1#
- 1...Se2
- 2.Qb1#
- 1...c5!
- 1...d1S+
- 1.Qd5+?
- 1...Rd4
- 2.Qf3#
- 2.Qxd4#
- 1...cxd5!
- 1...Rd4
- 1.Qf1+?
- 1...Se2
- 2.Qxe2#
- 2.Qb1#
- 1...Rxf1!
- 1...Se2
- 1.Se2?
- Keys
- 1.Sh5!
- threat
- 2.Sxf4#
- 1...d1S+
- 2.Qxd1#
- 1...Ke2
- 2.Sxf4#
- 1...Rd4
- 2.Qf3#
- 1...d1Q
- 2.Qxd1#
- 1...d1B
- 2.Qxd1#
- 1...d1R
- 2.Qxd1#
- 1...Rf1
- 2.Qe4#
- 1...Rf2
- 2.Qe4#
- 1...Rf3
- 2.Qxf3#
- 1...Ra4
- 2.Qf3#
- 1...Rb4
- 2.Qf3#
- 1...Rc4
- 2.Qf3#
- 1...Re4
- 2.Qxe4#
- 1...Rg4
- 2.Qf3#
- 1...Rh4
- 2.Qf3#
- 1...Rf5
- 2.Qe4#
- 1...Rf6
- 2.Qe4#
- 1...Rf7
- 2.Qe4#
- 1...Rf8
- 2.Qe4#
- 1...Se2
- 2.Qb1#
- threat
- 1.Sh5!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- R(f);N_GUARD::QAB1(A)
- R(f);N_GUARD::QAR2(A),XR(f)
- R(f);N_GUARD::QAR2(A)
- R(f);N_GUARD::QAB1(A),XR(f)
- S(a);OGATE::QAB(A)
- P(b);OGATEB::QAR2(A),XQ(b)
- P(b);CHECK,OGATEB::QAR2(A),XS(b)
- P(b);OGATEB::QAR2(A),XB(b)
- P(b);OGATEB::QAR2(A),XR(b)
- Tries
- Try
- S(C);
- Threat
- S(C),XR(f)
- Vars
- P(b);CHECK,OGATEB::QAR2(A),XS(b)
- S(a);OGATE,SBLOCK,XS(C)::QAB(A)
- R(f);N_GUARD::QAR2(A)
- P(b);OGATEB::QAR2(A),XQ(b)
- P(b);OGATEB::QAR2(A),XB(b)
- P(b);OGATEB::QAR2(A),XR(b)
- R(f);N_GUARD::QAB1(A)
- R(f);N_GUARD::QAR2(A),XR(f)
- R(f);N_GUARD::QAB1(A),XR(f)
- Refutation
- K(e);S_FLIGHT,XS(C)
- Try
- B(D);
- Vars
- P(b);CHECK,OGATEB::QAR2(A),XS(b)
- R(f);N_GUARD,XB(D)::QAB1(A)
- P(b);OGATEB::QAR2(A),XQ(b)
- P(b);OGATEB::QAR2(A),XB(b)
- P(b);OGATEB::QAR2(A),XR(b)
- R(f);N_GUARD::QAR2(A),XR(f)
- R(f);N_GUARD::QAR2(A)
- R(f);N_GUARD::QAB1(A),XR(f)
- R(f);N_GUARD::QAB1(A)
- S(a);OGATE::QAB(A)
- Refutation
- P(g);
- Try
- B(D);
- Vars
- P(b);CHECK,OGATEB::QAR2(A),XS(b)
- R(f);N_GUARD::QAR2(A)
- P(b);OGATEB::QAR2(A),XQ(b)
- P(b);OGATEB::QAR2(A),XB(b)
- P(b);OGATEB::QAR2(A),XR(b)
- R(f);N_GUARD::QAB1(A)
- R(f);N_GUARD::QAR2(A),XR(f)
- R(f);N_GUARD::QAB1(A),XR(f)
- S(a);OGATE::QAB(A)
- Refutation
- P(g);
- Try
- B(D);
- Vars
- P(b);CHECK,OGATEB::QAR2(A),XS(b)
- R(f);N_GUARD::QAR2(A)
- P(b);OGATEB::QAR2(A),XQ(b)
- P(b);OGATEB::QAR2(A),XB(b)
- P(b);OGATEB::QAR2(A),XR(b)
- R(f);N_GUARD::QAB1(A)
- R(f);N_GUARD::QAR2(A),XR(f)
- R(f);N_GUARD::QAB1(A),XR(f)
- S(a);OGATE::QAB(A)
- Refutation
- P(g);
- Try
- Q(A);CHECK
- Refutation
- P(g);XQ(A)
- Try
- Q(A);CHECK
- Refutation
- R(f);XQ(A)
- Try
- Actual
- S(C);
- Threat
- S(C),XR(f)
- Vars
- P(b);CHECK,OGATEB::QAR2(A),XS(b)
- K(e);S_FLIGHT::S(C),XR(f)
- R(f);N_GUARD::QAR2(A)
- P(b);OGATEB::QAR2(A),XQ(b)
- P(b);OGATEB::QAR2(A),XB(b)
- P(b);OGATEB::QAR2(A),XR(b)
- R(f);N_GUARD::QAB1(A)
- R(f);N_GUARD::QAR2(A),XR(f)
- R(f);N_GUARD::QAB1(A),XR(f)
- S(a);OGATE,SBLOCK::QAB(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).