MESON Chess Problem Database
Problem Display
PID: 182638 (N1Q4K/kB6/b7/1p5R/Rn6/b7/1pppppp1/7N w - - 0 1)
Ouellet, Charles
Problem Observer, 2015
#2
7 + 11
SOLUTION
- SOUND
- Sets
- 1...Sa2
- 2.Rxa6#
- 1...Sd3
- 2.Rxa6#
- 1...Sd5
- 2.Rxa6#
- 1...Sc6
- 2.Rxa6#
- 1...Sa2
- Tries
- 1.Bxg2?
- threat
- 2.Rh7#
- 2.Qb7#
- 2.Qc7#
- 1...c1Q
- 2.Qb7#
- 1...c1R
- 2.Qb7#
- 1...d1Q
- 2.Qb7#
- 2.Qc7#
- 1...d1R
- 2.Qb7#
- 2.Qc7#
- 1...e1Q
- 2.Qb7#
- 2.Qc7#
- 1...e1R
- 2.Qb7#
- 2.Qc7#
- 1...f1Q
- 2.Qb7#
- 2.Qc7#
- 1...f1R
- 2.Qb7#
- 2.Qc7#
- 1...Sa2
- 2.Rxa6#
- 2.Qb7#
- 2.Qc7#
- 1...Sd3
- 2.Rxa6#
- 2.Qb7#
- 2.Qc7#
- 1...Sd5
- 2.Rxa6#
- 1...Sc6
- 2.Rxa6#
- 1...bxa4!
- threat
- 1.Bf3?
- threat
- 2.Rh7#
- 2.Qb7#
- 2.Qc7#
- 1...gxh1Q
- 2.Qb7#
- 2.Qc7#
- 1...gxh1R
- 2.Qb7#
- 2.Qc7#
- 1...c1Q
- 2.Qb7#
- 1...c1R
- 2.Qb7#
- 1...d1Q
- 2.Qb7#
- 2.Qc7#
- 1...d1R
- 2.Qb7#
- 2.Qc7#
- 1...e1Q
- 2.Qb7#
- 2.Qc7#
- 1...e1R
- 2.Qb7#
- 2.Qc7#
- 1...g1Q
- 2.Qb7#
- 2.Qc7#
- 1...g1R
- 2.Qb7#
- 2.Qc7#
- 1...Sa2
- 2.Rxa6#
- 2.Qb7#
- 2.Qc7#
- 1...Sd3
- 2.Rxa6#
- 2.Qb7#
- 2.Qc7#
- 1...Sd5
- 2.Rxa6#
- 1...Sc6
- 2.Rxa6#
- 1...bxa4!
- threat
- 1.Be4?
- threat
- 2.Rh7#
- 2.Qb7#
- 2.Qc7#
- 1...gxh1Q
- 2.Qb7#
- 2.Qc7#
- 1...gxh1R
- 2.Qb7#
- 2.Qc7#
- 1...c1Q
- 2.Qb7#
- 1...c1R
- 2.Qb7#
- 1...d1Q
- 2.Qb7#
- 2.Qc7#
- 1...d1R
- 2.Qb7#
- 2.Qc7#
- 1...f1Q
- 2.Qb7#
- 2.Qc7#
- 1...f1R
- 2.Qb7#
- 2.Qc7#
- 1...g1Q
- 2.Qb7#
- 2.Qc7#
- 1...g1R
- 2.Qb7#
- 2.Qc7#
- 1...Sa2
- 2.Rxa6#
- 2.Qb7#
- 2.Qc7#
- 1...Sd3
- 2.Rxa6#
- 2.Qb7#
- 2.Qc7#
- 1...Sd5
- 2.Rxa6#
- 1...Sc6
- 2.Rxa6#
- 1...bxa4!
- threat
- 1.Bd5?
- threat
- 2.Rh7#
- 2.Qb7#
- 2.Qc7#
- 1...Sxd5
- 2.Rxa6#
- 1...gxh1Q
- 2.Qb7#
- 2.Qc7#
- 1...gxh1R
- 2.Qb7#
- 2.Qc7#
- 1...c1Q
- 2.Qb7#
- 1...c1R
- 2.Qb7#
- 1...e1Q
- 2.Qb7#
- 2.Qc7#
- 1...e1R
- 2.Qb7#
- 2.Qc7#
- 1...f1Q
- 2.Qb7#
- 2.Qc7#
- 1...f1R
- 2.Qb7#
- 2.Qc7#
- 1...g1Q
- 2.Qb7#
- 2.Qc7#
- 1...g1R
- 2.Qb7#
- 2.Qc7#
- 1...Sa2
- 2.Rxa6#
- 2.Qb7#
- 2.Qc7#
- 1...Sd3
- 2.Rxa6#
- 2.Qb7#
- 2.Qc7#
- 1...Sc6
- 2.Rxa6#
- 1...bxa4!
- threat
- 1.Bc6?
- threat
- 2.Rh7#
- 2.Qb7#
- 2.Qc7#
- 1...Sxc6
- 2.Rxa6#
- 1...gxh1Q
- 2.Qb7#
- 2.Qc7#
- 1...gxh1R
- 2.Qb7#
- 2.Qc7#
- 1...d1Q
- 2.Qb7#
- 2.Qc7#
- 1...d1R
- 2.Qb7#
- 2.Qc7#
- 1...e1Q
- 2.Qb7#
- 2.Qc7#
- 1...e1R
- 2.Qb7#
- 2.Qc7#
- 1...f1Q
- 2.Qb7#
- 2.Qc7#
- 1...f1R
- 2.Qb7#
- 2.Qc7#
- 1...g1Q
- 2.Qb7#
- 2.Qc7#
- 1...g1R
- 2.Qb7#
- 2.Qc7#
- 1...Sa2
- 2.Rxa6#
- 2.Qb7#
- 2.Qc7#
- 1...Sd3
- 2.Rxa6#
- 2.Qb7#
- 2.Qc7#
- 1...Sd5
- 2.Rxa6#
- 2.Qb7#
- 1...bxa4!
- threat
- 1.Qc7?
- threat
- 2.Bxg2#
- 2.Bf3#
- 2.Be4#
- 2.Bd5#
- 2.Bc6#
- 1...gxh1Q
- 2.Bxh1#
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 2.Bd5#
- 2.Bc6#
- 1...gxh1S
- 2.Bxh1#
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 2.Bd5#
- 2.Bc6#
- 1...gxh1B
- 2.Bxh1#
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 2.Bd5#
- 2.Bc6#
- 1...gxh1R
- 2.Bxh1#
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 2.Bd5#
- 2.Bc6#
- 1...c1Q
- 2.Bc6#
- 1...c1R
- 2.Bc6#
- 1...g1Q
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 2.Bd5#
- 2.Bc6#
- 1...g1S
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 2.Bd5#
- 2.Bc6#
- 1...g1B
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 2.Bd5#
- 2.Bc6#
- 1...g1R
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 2.Bd5#
- 2.Bc6#
- 1...Sd5
- 2.Bxd5#
- 2.Rxa6#
- 1...Sc6
- 2.Bxc6#
- 2.Rxa6#
- 1...bxa4!
- threat
- 1.Bxg2?
- Keys
- 1.Rh7!
- threat
- 2.Bxg2#
- 2.Bf3#
- 2.Be4#
- 2.Bd5#
- 2.Bxa6#
- 2.Bc6#
- 1...gxh1Q
- 2.Bxh1#
- 1...gxh1S
- 2.Bxh1#
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 2.Bd5#
- 2.Bxa6#
- 2.Bc6#
- 1...gxh1B
- 2.Bxh1#
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 2.Bd5#
- 2.Bc6#
- 1...gxh1R
- 2.Bxh1#
- 1...bxa4
- 2.Bxa6#
- 1...c1Q
- 2.Bc6#
- 1...c1R
- 2.Bc6#
- 1...d1Q
- 2.Bd5#
- 1...d1R
- 2.Bd5#
- 1...e1Q
- 2.Be4#
- 1...e1R
- 2.Be4#
- 1...f1Q
- 2.Bf3#
- 1...f1R
- 2.Bf3#
- 1...g1Q
- 2.Bg2#
- 1...g1S
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 2.Bd5#
- 2.Bxa6#
- 2.Bc6#
- 1...g1B
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 2.Bd5#
- 2.Bxa6#
- 2.Bc6#
- 1...g1R
- 2.Bg2#
- 1...Sa2
- 2.Rxa6#
- 1...Sd3
- 2.Rxa6#
- 1...Sd5
- 2.Rxa6#
- 1...Sc6
- 2.Rxa6#
- threat
- 1.Rh7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 13
- REMOVED MATES = 0
- Sets
- S(h);N_GUARD::R1(B),XB(j)
- Tries
- Try
- B(D);XP(f)
- Threat
- DUALS(3)
- Vars
- P(b);::QAR1(F)
- S(h);N_GUARD::R1(B),XB(j)
- Refutation
- P(i);N_SPINB(j),XR(B)
- Try
- B(D);
- Threat
- DUALS(3)
- Vars
- P(b);::QAR1(F)
- S(h);N_GUARD::R1(B),XB(j)
- Refutation
- P(i);N_SPINB(j),XR(B)
- Try
- B(D);
- Threat
- DUALS(3)
- Vars
- P(b);::QAR1(F)
- S(h);N_GUARD::R1(B),XB(j)
- Refutation
- P(i);N_SPINB(j),XR(B)
- Try
- B(D);
- Threat
- DUALS(3)
- Vars
- S(h);N_GUARD,XB(D)::R1(B),XB(j)
- P(b);::QAR1(F)
- S(h);N_GUARD::R1(B),XB(j)
- Refutation
- P(i);N_SPINB(j),XR(B)
- Try
- B(D);
- Threat
- DUALS(3)
- Vars
- S(h);N_GUARD,XB(D)::R1(B),XB(j)
- Refutation
- P(i);N_SPINB(j),XR(B)
- Try
- Q(F);
- Threat
- DUALS(5)
- Vars
- P(b);::QAR(F)+B(D)
- Refutation
- P(i);N_SPINB(j),XR(B)
- Try
- Actual
- R(C);
- Threat
- DUALS(6)
- Vars
- P(f);OGATE,P_PINR(C),XS(A)::R(C)+B(D),XQ(f)
- P(f);OGATE,P_PINR(C),XS(A)::R(C)+B(D),XR(f)
- P(i);N_SPINB(j),XR(B)::R(C)+B(D),XB(j)
- P(b);::R(C)+B(D)
- P(c);::R(C)+B(D)
- P(d);::R(C)+B(D)
- P(e);::R(C)+B(D)
- P(f);::R(C)+B(D)
- S(h);N_GUARD::R1(B),XB(j)
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).