MESON Chess Problem Database
Problem Display
PID: 179525 (6Rr/1P6/K1N3rn/8/Q2p4/4Pk1P/3Pp1p1/1B2B3 w - - 0 1)
Wong Kong Weng
Busmen's Chess Review, 1969
#2
10 + 7
SOLUTION
- SOUND
- Sets
- 1...Rg3
- 2.Sxd4#
- 2.Se5#
- 2.Rxg3#
- 1...Rg4
- 2.Se5#
- 1...Rg5
- 2.Sxd4#
- 1...Rxc6+
- 2.Qxc6#
- 1...Rd6
- 2.Rg3#
- 1...Re6
- 2.Rg3#
- 1...Rf6
- 2.Rg3#
- 1...Rg7
- 2.Sxd4#
- 2.Se5#
- 1...Rgxg8
- 2.Sxd4#
- 2.Se5#
- 1...dxe3
- 2.Qe4#
- 1...d3
- 2.Qf4#
- 1...Rg3
- Tries
- 1.Rxg6?
- threat
- 2.Sxd4#
- 2.Se5#
- 2.Rg3#
- 1...dxe3
- 2.Se5#
- 2.Rg3#
- 2.Qe4#
- 1...g1Q
- 2.Sxd4#
- 2.Se5#
- 1...g1R
- 2.Sxd4#
- 2.Se5#
- 1...Rd8
- 2.Se5#
- 2.Rg3#
- 1...Re8
- 2.Sxd4#
- 2.Rg3#
- 1...Rg8
- 2.Sxd4#
- 2.Se5#
- 1...Sg4
- 2.Sxd4#
- 1...Sf5
- 2.Se5#
- 1...Sf7
- 2.Sxd4#
- 2.Rg3#
- 2.Rf6#
- 1...d3
- 2.Se5#
- 2.Rg3#
- 2.Qf4#
- 1...Ra8+!
- threat
- 1.Qc2?
- threat
- 2.Qe4#
- 1...Rxc6+
- 2.Qxc6#
- 1...Rg4
- 2.Se5#
- 1...Re6
- 2.Rg3#
- 1...d3!
- threat
- 1.Qb3?
- threat
- 2.Qd5#
- 1...dxe3
- 2.Qxe3#
- 1...Rg4
- 2.Se5#
- 1...Rg5
- 2.Sxd4#
- 1...Rd6
- 2.Rg3#
- 1...Re6
- 2.Rg3#
- 1...Rxc6+!
- threat
- 1.Qb5?
- threat
- 2.Qd5#
- 1...Rxc6+
- 2.Qxc6#
- 1...Rg4
- 2.Se5#
- 1...Rg5
- 2.Sxd4#
- 1...Rd6
- 2.Rg3#
- 1...Re6
- 2.Rg3#
- 1...dxe3!
- threat
- 1.Qxd4?
- threat
- 2.Be4#
- 2.Qe4#
- 2.Qf4#
- 2.Qd5#
- 1...g1Q
- 2.Be4#
- 2.Qe4#
- 2.Qd5#
- 1...g1S
- 2.Be4#
- 2.Qe4#
- 2.Qd5#
- 1...g1B
- 2.Be4#
- 2.Qe4#
- 2.Qd5#
- 1...g1R
- 2.Be4#
- 2.Qe4#
- 2.Qd5#
- 1...Rg4
- 2.Se5#
- 1...Rg5
- 2.Be4#
- 2.Qe4#
- 2.Qf4#
- 1...Rd6
- 2.Be4#
- 2.Rg3#
- 2.Qe4#
- 2.Qf4#
- 1...Re6
- 2.Rg3#
- 2.Qf4#
- 1...Rf6
- 2.Be4#
- 2.Rg3#
- 2.Qe4#
- 2.Qd5#
- 1...Rxc6+!
- threat
- 1.Rxg6?
- Keys
- 1.Qc4!
- threat
- 2.Qd5#
- 1...Rxc6+
- 2.Qxc6#
- 1...dxe3
- 2.Qe4#
- 1...Rg4
- 2.Se5#
- 1...Rg5
- 2.Sxd4#
- 1...Rd6
- 2.Rg3#
- 1...Re6
- 2.Rg3#
- threat
- 1.Qc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- R(e);N_PINS(H)::S(H)
- R(e);N_PINS(H)::S(H),XP(d)
- R(e);CHECK,OGATE,XS(H)::QAB(F),XR(e)
- R(e);OGATE::R1(J)
- P(d);OGATE,XP(D)::QAB1(F)
- P(d);OGATE::QAR1(F)
- Tries
- Try
- R(J);N_SPINS(H),XR(e)
- Threat
- DUALS(3)
- Vars
- S(f);::S(H),XP(d)
- S(f);::S(H)
- Refutation
- R(g);CHECK
- Try
- Q(F);
- Threat
- QAB1(F)
- Vars
- R(e);CHECK,OGATE,XS(H)::QAB(F),XR(e)
- R(e);N_PINS(H)::S(H)
- R(e);OGATE::R1(J)
- Refutation
- P(d);
- Try
- Q(F);
- Threat
- QAB(F)
- Vars
- P(d);OGATE,P_SPINP(d),XP(D)::QAR1(F),XP(d)
- R(e);N_PINS(H)::S(H)
- R(e);N_PINS(H)::S(H),XP(d)
- R(e);OGATE::R1(J)
- Refutation
- R(e);CHECK,XS(H)
- Try
- Q(F);
- Threat
- QAB(F)
- Vars
- R(e);CHECK,OGATE,XS(H)::QAB(F),XR(e)
- R(e);N_PINS(H)::S(H)
- R(e);N_PINS(H)::S(H),XP(d)
- R(e);OGATE::R1(J)
- Refutation
- P(d);XP(D)
- Try
- Q(F);XP(d)
- Threat
- DUALS(4)
- Vars
- R(e);N_PINS(H)::S(H)
- Refutation
- R(e);CHECK,XS(H)
- Try
- Actual
- Q(F);
- Threat
- QAB(F)
- Vars
- R(e);CHECK,OGATE,XS(H)::QAB(F),XR(e)
- P(d);OGATE,XP(D)::QAB1(F)
- R(e);N_PINS(H)::S(H)
- R(e);N_PINS(H)::S(H),XP(d)
- R(e);OGATE::R1(J)
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).