MESON Chess Problem Database
Problem Display
PID: 45356 (1B1rR3/5p2/2Rbnp2/1P1k2p1/8/2P2P2/K2P2N1/2Q5 w - - 0 1)
Stevenson, Edward
Double Pin-Mate after a Black King Move, 1980
#2
10 + 7
SOLUTION
- SOUND
- Sets
- 1...Ke5
- 2.Rc5#
- 1...Bh2
- 2.Se3#
- 1...Ba3
- 2.Se3#
- 1...Bg3
- 2.Se3#
- 1...Bb4
- 2.Se3#
- 1...Be5
- 2.Se3#
- 1...Be7
- 2.Se3#
- 1...Bf8
- 2.Se3#
- 1...Sd4
- 2.Se3#
- 2.c4#
- 1...Sf4
- 2.Se3#
- 1...Sc5
- 2.Se3#
- 1...Sc7
- 2.Se3#
- 1...Sg7
- 2.Se3#
- 1...Sf8
- 2.Se3#
- 1...Ke5
- Tries
- 1.Qa1?
- threat
- 2.c4#
- 1...Ke5
- 2.Rc5#
- 1...Sc5
- 2.Se3#
- 1...Bc5!
- threat
- 1.Qb1?
- threat
- 2.Qe4#
- 1...Ke5
- 2.Rc5#
- 2.Qe4#
- 1...Sc5
- 2.Se3#
- 1...f5!
- threat
- 1.Qe1?
- threat
- 2.Qe4#
- 1...Sc5
- 2.Se3#
- 1...f5!
- threat
- 1.Qc2?
- threat
- 2.Qe4#
- 1...Ke5
- 2.Rc5#
- 2.Qe4#
- 1...Sc5
- 2.Se3#
- 1...f5!
- threat
- 1.c4+?
- 1...Kd4
- 2.Qc3#
- 1...Ke5!
- 1...Kd4
- 1.Qa1?
- Keys
- 1.Qb2!
- threat
- 2.c4#
- 1...Ke5
- 2.Rc5#
- 1...Bc5
- 2.Qb3#
- 1...Sc5
- 2.Se3#
- threat
- 1.Qb2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 11
- Sets
- K(a);P-FLIGHT,P_SPINB(c),P_SPINS(d)::R(H)
- B(c);::S(D)
- S(d);::S(D)
- Tries
- Try
- Q(A);
- Threat
- P(E)
- Vars
- K(a);P-FLIGHT,P_SPINB(c),P_SPINS(d)::R(H)
- S(d);::S(D)
- Refutation
- B(c);
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- S(d);::S(D)
- Refutation
- P(e);
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- S(d);::S(D)
- Refutation
- P(e);
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- S(d);::S(D)
- Refutation
- P(e);
- Try
- P(E);CHECK
- Vars
- K(a);P-FLIGHT::QAB1(A)
- Refutation
- K(a);P-FLIGHT,P_SPINB(c),P_SPINS(d)
- Try
- Actual
- Q(A);
- Threat
- P(E)
- Vars
- K(a);P-FLIGHT,P_SPINB(c),P_SPINS(d)::R(H)
- B(c);::QAB(A)
- S(d);::S(D)
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).