MESON Chess Problem Database
Problem Display
PID: 271996 (K1R2b2/3p4/1p1r3B/8/nR2p3/1p1kp1N1/NQ1p2b1/1n1r3B w - - 0 1)
Ling, John Francis
The Problemist, 1957
#2
8 + 13
SOLUTION
- SOUND
- Sets
- 1...Rd4
- 2.Rxd4#
- 2.Qxd4#
- 1...Rc6
- 2.Rd4#
- 1...Re6
- 2.Rd4#
- 2.Qd4#
- 1...Rf6
- 2.Rd4#
- 2.Qd4#
- 1...Rg6
- 2.Rd4#
- 2.Qd4#
- 1...Rxh6
- 2.Rd4#
- 2.Qd4#
- 1...Bf1
- 2.Bxe4#
- 1...Bh3
- 2.Bxe4#
- 1...bxa2
- 2.Qc2#
- 1...Rd4
- Tries
- 1.Rxa4?
- threat
- 2.Sb4#
- 1...Rxh6
- 2.Rd4#
- 2.Qd4#
- 1...bxa2
- 2.Qc2#
- 2.Qb5#
- 1...Sc3
- 2.Rxc3#
- 2.Qxc3#
- 1...Rd4
- 2.Rxd4#
- 2.Qxd4#
- 1...Rc6
- 2.Rd4#
- 1...Re6
- 2.Rd4#
- 2.Qd4#
- 1...Rf6
- 2.Rd4#
- 2.Qd4#
- 1...Rg6
- 2.Rd4#
- 2.Qd4#
- 1...Rd5!
- threat
- 1.Rxa4?
- Keys
- 1.Rxe4!
- threat
- 2.Sb4#
- 1...Bxe4+
- 2.Bxe4#
- 1...Rxh6
- 2.Qd4#
- 1...bxa2
- 2.Qc2#
- 2.Qb5#
- 1...Rd4
- 2.Qxd4#
- 1...Rd5
- 2.Rxe3#
- 1...Rc6
- 2.Rd4#
- 1...Re6
- 2.Qd4#
- 1...Rf6
- 2.Qd4#
- 1...Rg6
- 2.Qd4#
- threat
- 1.Rxe4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 3
- Sets
- R(k);N_GUARD::R1(E)
- B(d);OGATE::B(A),XP(i)
- P(e);N_GUARD,XS(B)::QAB1(C)
- Tries
- Try
- R(E);XS(h)
- Threat
- S(B)
- Vars
- R(k);N_GUARD::R1(E)
- Refutation
- R(k);
- Try
- Actual
- R(E);P_SPINR(E),XP(i)
- Threat
- S(B)
- Vars
- B(d);CHECK,OGATE,XR(E)::B(A),XB(d)
- R(k);N_GUARD,XB(F)::QAR1(C)
- R(k);N_GUARD::QAR1(C),XR(k)
- R(k);N_PINR(E)::R1(E),XP(g)
- R(k);N_PINR(E)::R1(E)
- R(k);N_GUARD::QAR1(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).