MESON Chess Problem Database
Problem Display
PID: 16200 (1rr5/4N3/np4b1/P1k1BR2/3p1p2/KQ5q/4B3/2Nn4 w - - 0 1)
Prcic, Mike
StrateGems, 2000
#2
8 + 10
SOLUTION
- SOUND
- Sets
- 1...Qf1
- 2.Sd3#
- 2.Qc4#
- 2.Qd5#
- 2.Qb5#
- 1...Qg2
- 2.Sd3#
- 2.Qc4#
- 2.Qb5#
- 1...Qg4
- 2.Sd3#
- 2.Qc4#
- 2.Qd5#
- 2.Qb5#
- 1...Qxf5
- 2.Qc4#
- 2.Qd5#
- 2.Qb5#
- 1...Qh1
- 2.Sd3#
- 2.Qc4#
- 2.Qb5#
- 1...Qh2
- 2.Sd3#
- 2.Qc4#
- 2.Qd5#
- 2.Qb5#
- 1...Qxb3+
- 2.Sxb3#
- 1...Qd3
- 2.Sxd3#
- 1...Qh4
- 2.Sd3#
- 2.Qc4#
- 2.Qd5#
- 2.Qb5#
- 1...Qh5
- 2.Sd3#
- 2.Qc4#
- 2.Qd5#
- 2.Qb5#
- 1...Qh6
- 2.Sd3#
- 2.Qc4#
- 2.Qd5#
- 2.Qb5#
- 1...Qh7
- 2.Sd3#
- 2.Qc4#
- 2.Qd5#
- 2.Qb5#
- 1...Qh8
- 2.Sd3#
- 2.Qc4#
- 2.Qd5#
- 2.Qb5#
- 1...Sc3
- 2.Qc4#
- 1...Se3
- 2.Sd3#
- 2.Qb5#
- 1...d3
- 2.Qd5#
- 1...f3
- 2.Sd3#
- 2.Qc4#
- 2.Qd5#
- 2.Qb5#
- 1...Qf1
- Tries
- 1.Bd3?
- threat
- 2.Qc4#
- 2.Qd5#
- 2.Qb5#
- 1...Qxd3
- 2.Sxd3#
- 1...Qg2
- 2.Qc4#
- 2.Qb5#
- 1...Qh1
- 2.Qc4#
- 2.Qb5#
- 1...Qf3
- 2.Qc4#
- 2.Qb5#
- 1...Rd8
- 2.Qc4#
- 2.Qb5#
- 1...Bf7
- 2.Qb5#
- 1...Be8
- 2.Qc4#
- 2.Qd5#
- 1...Sb2
- 2.Qd5#
- 2.Qb5#
- 1...Sc3
- 2.Qc4#
- 1...Se3
- 2.Qb5#
- 1...Sb4
- 2.Qc4#
- 2.Qxb4#
- 1...Sc7
- 2.Qc4#
- 2.Qb4#
- 1...b5
- 2.Qd5#
- 1...bxa5!
- threat
- 1.Bf3?
- threat
- 2.Sd3#
- 2.Qd5#
- 1...Qxf5
- 2.Qd5#
- 1...Bxf5
- 2.Qd5#
- 1...bxa5
- 2.Sd3#
- 1...Sb4
- 2.Qxb4#
- 1...Qf1
- 2.Qd5#
- 1...Rd8
- 2.Sd3#
- 1...Bf7
- 2.Sd3#
- 1...Sb2
- 2.Qd5#
- 1...Sf2
- 2.Qd5#
- 1...Sc3
- 2.Sd3#
- 1...Se3
- 2.Sd3#
- 1...Sc7
- 2.Sd3#
- 2.Qb4#
- 1...d3
- 2.Sxd3#
- 2.Qd5#
- 1...Qxf3!
- threat
- 1.Bxf4+?
- 1...Qxf5
- 2.Qc4#
- 2.Qb5#
- 1...Bxf5!
- 1...Qxf5
- 1.Bc7+?
- 1...Qxf5
- 2.Qc4#
- 2.Qb5#
- 1...Bxf5!
- 1...Qxf5
- 1.Bxb8+?
- 1...Qxf5
- 2.Qc4#
- 2.Qb5#
- 2.Qxb6#
- 1...Bxf5!
- 1...Qxf5
- 1.Qc3+?
- 1...Sxc3
- 2.Sb3#
- 1...dxc3
- 2.Sb3#
- 1...Qxc3+!
- 1...Sxc3
- 1.Bd3?
- Keys
- 1.Rf6!
- threat
- 2.Bd6#
- 1...Qxb3+
- 2.Sxb3#
- 1...Qe6
- 2.Qb5#
- 1...Qd7
- 2.Qc4#
- 1...Rc6
- 2.Rxc6#
- 1...Rd8
- 2.Rc6#
- 1...d3
- 2.Qd5#
- threat
- 1.Rf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 2
- Sets
- Q(b);CHECK,XQ(D)::S(A),XQ(b)
- Q(b);N_GUARD::S(A),XQ(b)
- S(a);N_PINQ(D)::QAR1(D)
- P(c);N_PINQ(D)::QAR1(D)
- Tries
- Try
- B(B);N_SPINQ(D)
- Threat
- DUALS(3)
- Vars
- Q(b);P_PINQ(D),XB(B)::S(A),XQ(b)
- B(h);::QAR1(D)
- S(a);::QAR1(D)
- P(g);::QAR1(D)
- Refutation
- P(g);XP(E)
- Try
- B(B);N_SPINQ(D)
- Threat
- DUALS(2)
- Vars
- Q(b);XR(G)::QAR1(D)
- B(h);XR(G)::QAR1(D)
- P(g);XP(E)::S(A)
- S(f);N_GUARD::QAB1(D),XS(f)
- Q(b);::QAR1(D)
- R(j);::S(A)
- B(h);::S(A)
- S(a);::QAR1(D)
- S(a);::S(A)
- Refutation
- Q(b);P_PINQ(D),XB(B)
- Try
- B(F);CHECK,XP(d)
- Refutation
- B(h);XR(G)
- Try
- B(F);CHECK
- Refutation
- B(h);XR(G)
- Try
- B(F);CHECK,XR(i)
- Refutation
- B(h);XR(G)
- Try
- Q(D);CHECK
- Vars
- S(a);XQ(D)::S(A)
- P(c);XQ(D)::S(A)
- Refutation
- Q(b);CHECK,XQ(D)
- Try
- Actual
- R(G);
- Threat
- B(F)
- Vars
- Q(b);CHECK,XQ(D)::S(A),XQ(b)
- Q(b);N_PINQ(D)::QAR1(D)
- R(j);N_GUARD::R1(G),XR(j)
- R(j);N_GUARD::R1(G)
- P(c);N_PINQ(D)::QAR1(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).