MESON Chess Problem Database
Problem Display
PID: 194140 (5Q1b/qnn5/4p3/4kp2/1NRN4/1P3PP1/P5p1/B5K1 w - - 0 1)
Kuijers, LA
Tidskrift for Schack, 1917
#2
10 + 8
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Qxd4+
- 2.Bxd4#
- 1...Qb8
- 2.Sdc2#
- 2.Se2#
- 2.Sb5#
- 2.Sxf5#
- 2.Sdc6#
- 1...Qxa2
- 2.Sdc6#
- 1...Qa3
- 2.Sdc6#
- 1...Qa4
- 2.Sdc2#
- 2.Se2#
- 2.Sb5#
- 2.Sxf5#
- 2.Sdc6#
- 1...Qa5
- 2.Sdc2#
- 2.Se2#
- 2.Sb5#
- 2.Sxf5#
- 2.Sdc6#
- 1...Qa6
- 2.Sdc2#
- 2.Se2#
- 2.Sb5#
- 2.Sxf5#
- 2.Sdc6#
- 1...Qa8
- 2.Sdc2#
- 2.Se2#
- 2.Sb5#
- 2.Sxf5#
- 2.Sdc6#
- 1...Sc5
- 2.Sdc2#
- 2.Se2#
- 2.Sb5#
- 2.Sxf5#
- 2.Sdc6#
- 1...Sd6
- 2.Qxh8#
- 1...Sd5
- 2.Sd3#
- 2.Sc6#
- 1...f4
- 2.Qxf4#
- 2.gxf4#
- 1...Qxd4+
- Tries
- 1.Kxg2?
- threat
- 2.Sdc6#
- 1...Qxd4
- 2.Bxd4#
- 1...Qxa2+!
- threat
- 1.Rc1?
- threat
- 2.Re1#
- 1...Qxa2
- 2.Sdc6#
- 1...Qa6
- 2.Sdc2#
- 2.Se2#
- 2.Sb5#
- 2.Sxf5#
- 2.Sdc6#
- 1...Sc5
- 2.Sdc2#
- 2.Se2#
- 2.Sb5#
- 2.Sxf5#
- 2.Sdc6#
- 1...Sd6
- 2.Qxh8#
- 1...Sd5
- 2.Sd3#
- 2.Sc6#
- 1...Qxd4+!
- threat
- 1.Rc2?
- threat
- 2.Re2#
- 1...Qxa2
- 2.Sdc6#
- 1...Qa6
- 2.Se2#
- 2.Sb5#
- 2.Sxf5#
- 2.Sdc6#
- 1...Sc5
- 2.Se2#
- 2.Sb5#
- 2.Sxf5#
- 2.Sdc6#
- 1...Sd6
- 2.Qxh8#
- 1...Sd5
- 2.Sd3#
- 2.Sc6#
- 1...Qxd4+!
- threat
- 1.Rc5+?
- 1...Sxc5
- 2.Sdc2#
- 2.Se2#
- 2.Sb5#
- 2.Sxf5#
- 2.Sdc6#
- 1...Sd5
- 2.Sd3#
- 2.Sbc6#
- 2.Sdc2#
- 2.Se2#
- 2.Sb5#
- 2.Sxf5#
- 2.Sdc6#
- 1...Qxc5!
- 1...Sxc5
- 1.Qg7+?
- 1...Kd6
- 2.Rc6#
- 2.Qxc7#
- 1...Bxg7!
- 1...Kd6
- 1.Qd8?
- threat
- 2.Sd3#
- 2.Sc6#
- 1...Qxd4+
- 2.Bxd4#
- 2.Qxd4#
- 1...Qc5
- 2.Sd3#
- 1...Qb6
- 2.Sd3#
- 1...Qa4
- 2.Sd3#
- 2.Sdc2#
- 2.Se2#
- 2.Sb5#
- 2.Sdc6#
- 1...Qa6
- 2.Sd3#
- 2.Sdc2#
- 2.Se2#
- 2.Sb5#
- 2.Sdc6#
- 1...Sa5
- 2.Sd3#
- 1...Sc5
- 2.Sbc6#
- 2.Sdc2#
- 2.Se2#
- 2.Sb5#
- 2.Sdc6#
- 1...Sd6
- 2.Qxh8#
- 1...Sxd8!
- threat
- 1.Kxg2?
- Keys
- 1.Rc3!
- threat
- 2.Re3#
- 1...Kxd4
- 2.Rd3#
- 1...Sc5
- 2.Sdc6#
- 1...Sd6
- 2.Qxh8#
- 1...Sd5
- 2.Sc6#
- 1...f4
- 2.Qxf4#
- threat
- 1.Rc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 3
- Sets
- Q(e);CHECK,OGATE,P_SPINQ(e),XS(I)::B(A),XQ(e)
- Q(e);N_PINS(I),XP(C)::B(A)+S(I),DCHECK
- Q(e);N_PINS(I)::B(A)+S(I),DCHECK
- S(f);SBLOCK::QAB(J),XB(h)
- Tries
- Try
- K(B);N_SPINS(I),P-FLIGHT,XP(a)
- Threat
- B(A)+S(I),DCHECK
- Vars
- Q(e);OGATE,P_SPINQ(e),XS(I)::B(A),XQ(e)
- Refutation
- Q(e);CHECK,XP(C)
- Try
- R(H);
- Threat
- R(H)
- Vars
- Q(e);N_PINS(I),XP(C)::B(A)+S(I),DCHECK
- S(f);SBLOCK::QAB(J),XB(h)
- Refutation
- Q(e);CHECK,P_SPINQ(e),XS(I)
- Try
- R(H);
- Threat
- R(H)
- Vars
- Q(e);N_PINS(I),XP(C)::B(A)+S(I),DCHECK
- S(f);SBLOCK::QAB(J),XB(h)
- Refutation
- Q(e);CHECK,P_SPINQ(e),XS(I)
- Try
- R(H);CHECK,N_SPINS(I)
- Refutation
- Q(e);P_PINS(I),XR(H)
- Try
- Q(J);CHECK
- Refutation
- B(h);XQ(J)
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- Q(e);::S(G)
- S(f);::S(G)
- S(f);SBLOCK::QAB(J),XB(h)
- Refutation
- S(f);XQ(J)
- Try
- Actual
- R(H);
- Threat
- R(H)
- Vars
- K(b);OGATEB,S_FLIGHT,XS(I)::B(A)+R(H),DCHECK
- S(f);N_PINS(I)::S(I)
- S(f);SBLOCK::QAB(J),XB(h)
- S(g);SBLOCK::S(G)
- P(c);OGATE::QAB1(J),XP(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).