MESON Chess Problem Database
Problem Display
PID: 247222 (5k2/4R1pP/1K1P4/2p5/2B2p2/1N1p2r1/5n1r/Q4Rbb w - - 0 1)
Triggs, D
The Problemist, 1954
#2
8 + 10
SOLUTION
- SOUND
- Sets
- 1...Rhg2
- 2.Qa8#
- 2.h8Q#
- 2.h8R#
- 1...Rgg2
- 2.Qa8#
- 1...Re3
- 2.Qxg7#
- 1...Rf3
- 2.Qxg7#
- 2.Qa8#
- 1...Rh3
- 2.Qxg7#
- 1...Ba8
- 2.Qxa8#
- 1...Sd1
- 2.Rxf4#
- 1...Sh3
- 2.h8Q#
- 2.h8R#
- 1...Se4
- 2.Qa8#
- 1...Sg4
- 2.Qxg7#
- 1...f3
- 2.Qa8#
- 1...g5
- 2.Qf6#
- 2.Qg7#
- 2.Qh8#
- 1...g6
- 2.Qf6#
- 2.Qg7#
- 2.Qh8#
- 1...Rhg2
- Tries
- 1.Re4?
- threat
- 2.Qa8#
- 1...g5
- 2.Qf6#
- 2.Qh8#
- 1...g6
- 2.Qf6#
- 2.Qh8#
- 1...Bxe4!
- threat
- 1.Qe5?
- threat
- 2.Rf7#
- 2.Re8#
- 2.Qxf4#
- 2.Qf5#
- 1...Rxh7
- 2.Re8#
- 2.Qxf4#
- 2.Qf5#
- 1...Rh4
- 2.Rf7#
- 2.Re8#
- 2.Qf5#
- 1...Rh5
- 2.Rf7#
- 2.Re8#
- 1...Rh6
- 2.Rf7#
- 2.Re8#
- 1...Rf3
- 2.Rf7#
- 2.Re8#
- 2.Qxg7#
- 2.Qf5#
- 1...Rg4
- 2.Rf7#
- 2.Re8#
- 2.Qf5#
- 1...Rg5
- 2.Rf7#
- 2.Re8#
- 1...Rg6
- 2.Rf7#
- 2.Re8#
- 1...Be4
- 2.Rf7#
- 2.Re8#
- 1...Bc6
- 2.Rf7#
- 2.Qxf4#
- 2.Qf5#
- 1...Sh3
- 2.Rf7#
- 2.Re8#
- 2.Qf5#
- 2.h8Q#
- 2.h8R#
- 1...Se4
- 2.Rf7#
- 2.Re8#
- 1...Sg4
- 2.Rf7#
- 2.Re8#
- 2.Qxg7#
- 1...f3
- 2.Rf7#
- 2.Re8#
- 2.Qf4#
- 2.Qf5#
- 1...g5
- 2.Rf7#
- 2.Re8#
- 2.Qf6#
- 2.Qg7#
- 2.Qh8#
- 2.Qf5#
- 1...g6
- 2.Rf7#
- 2.Re8#
- 2.Qxf4#
- 2.Qf6#
- 2.Qg7#
- 2.Qh8#
- 1...Bd5!
- threat
- 1.Qa4?
- threat
- 2.Rf7#
- 2.Re8#
- 2.Qe8#
- 1...Rxh7
- 2.Re8#
- 2.Qe8#
- 1...Re3
- 2.Rf7#
- 2.Qe8#
- 1...Bd5
- 2.Qe8#
- 1...g5
- 2.Rf7#
- 2.Qe8#
- 1...g6
- 2.Rf7#
- 2.Qe8#
- 1...Bc6!
- threat
- 1.Re4?
- Keys
- 1.Sxc5!
- threat
- 2.Se6#
- 2.Sd7#
- 1...Rxh7
- 2.Sd7#
- 1...Rh6
- 2.Sd7#
- 1...Re3
- 2.Sd7#
- 2.Qxg7#
- 1...Rg6
- 2.Sd7#
- 1...Bd5
- 2.Sd7#
- 1...Bc6
- 2.Se6#
- 1...Sd1
- 2.Rxf4#
- 1...Sh3
- 2.h8Q#
- 2.h8R#
- 1...Se4
- 2.Qa8#
- 1...Sg4
- 2.Qxg7#
- threat
- 1.Sxc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 5
- Sets
- R(f);S_CUTB(b)::QAR(A)
- R(f);N_GUARD::QAB1(A),XP(i)
- B(b);N_GUARD::QAR(A),XB(b)
- S(c);OGATE,P_SPINP(g)::R(B),XP(g)
- S(c);P_SPINP(g),S_CUTR(d)::P=Q
- S(c);P_SPINP(g),S_CUTB(b)::QAR(A)
- S(c);P_SPINP(g),S_CUTR(f)::QAB1(A),XP(i)
- P(g);S_CUTB(b)::QAR(A)
- Tries
- Try
- R(G);
- Threat
- QAR(A)
- Refutation
- B(b);XR(G)
- Try
- Q(A);
- Threat
- DUALS(4)
- Refutation
- B(b);
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- B(b);::QAR1(A)
- Refutation
- B(b);
- Try
- Actual
- S(C);XP(h)
- Threat
- DUALS(2)
- Vars
- R(d);XP(H)::S(C)
- R(d);P_PINP(F)::S(C)
- R(f);P_PINP(F)::S(C)
- B(b);::S(C)
- S(c);OGATE,P_PINS(C),P_SPINP(g)::R(B),XP(g)
- S(c);P_PINS(C),P_SPINP(g),S_CUTR(d)::P=Q
- S(c);P_PINS(C),P_SPINP(g),S_CUTB(b)::QAR(A)
- S(c);P_PINS(C),P_SPINP(g),S_CUTR(f)::QAB1(A),XP(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).