MESON Chess Problem Database
Problem Display
PID: 199874 (7B/K3p3/R3Nn2/1pN1kb1R/5p2/1Qp5/4n1r1/7B w - - 0 1)
Groeneveld, Cornelis
Suomen Shakki, 1989
#2
8 + 9
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Sd3#
- 2.Sd7#
- 2.Qd5#
- 1...Rf2
- 2.Sd3#
- 2.Sd7#
- 2.Qd5#
- 1...Rh2
- 2.Sd3#
- 2.Sd7#
- 2.Qd5#
- 1...Rg3
- 2.Sd7#
- 2.Qd5#
- 1...Rg4
- 2.Sd3#
- 2.Sd7#
- 2.Qd5#
- 1...Rg5
- 2.Sd7#
- 2.Qd5#
- 1...Rg6
- 2.Sd3#
- 2.Sd7#
- 2.Qd5#
- 1...Rg7
- 2.Sd3#
- 1...Rg8
- 2.Sd3#
- 2.Sd7#
- 2.Qd5#
- 1...Rg1
- Tries
- 1.Bxg2?
- threat
- 2.Sd3#
- 2.Sd7#
- 2.Qd5#
- 1...Sc1
- 2.Sd7#
- 2.Qd5#
- 2.Qxc3#
- 1...f3!
- threat
- 1.Qc4?
- threat
- 2.Sd3#
- 2.Sd7#
- 2.Qe4#
- 1...Sc1
- 2.Sd7#
- 2.Qd4#
- 2.Qe4#
- 1...Rg3
- 2.Sd7#
- 2.Qd5#
- 2.Qe4#
- 1...Rg5
- 2.Sd7#
- 2.Qd5#
- 1...Rg7
- 2.Sd3#
- 1...Sg3
- 2.Sd3#
- 2.Sd7#
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...bxc4!
- threat
- 1.Qxc3+?
- 1...Kd5
- 2.Sc7#
- 2.Rxf5#
- 1...Sd4
- 2.Qxd4#
- 1...Sxc3!
- 1...Kd5
- 1.Bxg2?
- Keys
- 1.Qb4!
- threat
- 2.Qe4#
- 1...Kd5
- 2.Rxf5#
- 1...Rg5
- 2.Sd7#
- 1...Rg7
- 2.Sd3#
- 1...Sg3
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- threat
- 1.Qb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- R(b);N_SPINS(h)::S(C)
- Tries
- Try
- B(A);XR(b)
- Threat
- DUALS(3)
- Refutation
- P(d);
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- R(b);N_SPINS(h)::S(C)
- S(a);N_GUARD::QAB1(B),XS(a)
- Refutation
- P(e);XQ(B)
- Try
- Q(B);CHECK,XP(c)
- Vars
- S(a);N_GUARD,N_SPINS(h),P_SPINS(a)::QAB1(B),XS(a)
- Refutation
- S(a);XQ(B)
- Try
- Actual
- Q(B);
- Threat
- QAR1(B)
- Vars
- K(f);N_SPINS(h),P-FLIGHT,P_SPINR(b)::R(D),XB(g)
- R(b);N_SPINB(g)::S(C)
- R(b);N_SPINS(h)::S(C)
- S(a);N_GUARD::QAB1(B)
- S(a);N_GUARD::QAB1(B),XS(a)
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).