MESON Chess Problem Database
Problem Display
PID: 232246 (KB6/p1r5/7Q/5N2/6p1/R5pb/6Bk/3R4 w - - 0 1)
Boven, Dirk
Schweizerische Schachzeitung, 1987
#2
7 + 6
SOLUTION
- SOUND
- Sets
- 1...Kxg2
- 2.Qd2#
- 1...Kxg2
- Tries
- 1.Be4?
- threat
- 2.Rh1#
- 1...Rc1
- 2.Bxg3#
- 1...g2!
- threat
- 1.Bd5?
- threat
- 2.Rh1#
- 1...Rc1
- 2.Bxg3#
- 1...g2!
- threat
- 1.Ra2?
- threat
- 2.Rh1#
- 1...Rc1
- 2.Bxg3#
- 1...Rc2!
- threat
- 1.Qd2?
- threat
- 2.Rh1#
- 1...Rc1
- 2.Bxg3#
- 1...Bxg2+!
- threat
- 1.Qe3?
- threat
- 2.Qg1#
- 2.Qxg3#
- 1...Kxg2
- 2.Qg1#
- 2.Qd2#
- 2.Qe2#
- 2.Qxg3#
- 1...Rc3
- 2.Qg1#
- 1...Bxg2+!
- threat
- 1.Qh4?
- threat
- 2.Qxg3#
- 1...Kxg2
- 2.Qxg3#
- 1...Rc3!
- threat
- 1.Be4?
- Keys
- 1.Sh4!
- threat
- 2.Rh1#
- 1...Bxg2+
- 2.Sf3#
- 1...Rc1
- 2.Bxg3#
- threat
- 1.Sh4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- K(a);N_SPINB(c),OGATEB,P-FLIGHT,XB(B)::QAR(E)
- Tries
- Try
- B(B);
- Threat
- R1(A)
- Vars
- R(f);OGATE,P_SPINP(b)::B(G),XP(b)
- Refutation
- P(b);P_SPINR(f)
- Try
- B(B);
- Threat
- R1(A)
- Vars
- R(f);OGATE,P_SPINP(b)::B(G),XP(b)
- Refutation
- P(b);P_SPINR(f)
- Try
- R(C);
- Threat
- R1(A)
- Vars
- R(f);OGATE,P_SPINP(b)::B(G),XP(b)
- Refutation
- R(f);P_SPINP(b)
- Try
- Q(E);N_PINB(c)
- Threat
- R1(A)
- Vars
- R(f);OGATE,P_SPINP(b)::B(G),XP(b)
- Refutation
- B(c);CHECK,P_SPINB(c),XB(B)
- Try
- Q(E);N_PINB(c)
- Threat
- DUALS(2)
- Vars
- R(f);P_SPINP(b)::QAB1(E)
- Refutation
- B(c);CHECK,XB(B)
- Try
- Q(E);
- Threat
- QAB1(E),XP(b)
- Vars
- K(a);N_SPINB(c),P-FLIGHT,XB(B)::QAR1(E),XP(b)
- Refutation
- R(f);P_SPINP(b)
- Try
- Actual
- S(D);N_PINB(c)
- Threat
- R1(A)
- Vars
- B(c);CHECK,SBLOCK,XB(B)::QAR(E)+S(D),DCHECK
- R(f);OGATE,P_SPINP(b)::B(G),XP(b)
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).