MESON Chess Problem Database
Problem Display
PID: 184075 (2B5/6r1/2p3N1/1p6/pQ1R2P1/Kn1R3n/4k3/4BbrN w - - 0 1)
White, James R
The Problemist, 1980
#2
9 + 9
SOLUTION
- SOUND
- Sets
- 1...Rg3
- 2.Sxg3#
- 1...Rxg4
- 2.Bxg4#
- 1...Re7
- 2.Qxe7#
- 1...Rg8
- 2.Qe7#
- 1...Bg2
- 2.Sg3#
- 1...Sa1
- 2.Qd2#
- 1...Sc1
- 2.Qd2#
- 1...Sd2
- 2.Qxd2#
- 1...Sxd4
- 2.Qd2#
- 1...Sa5
- 2.Qd2#
- 1...Sc5
- 2.Qd2#
- 1...Sf2
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sg5
- 2.Sf4#
- 1...Rg3
- Tries
- 1.Bf2?
- threat
- 2.Re3#
- 2.Qe1#
- 1...Rxh1
- 2.Qe1#
- 1...Sxd4
- 2.Qd2#
- 1...Sxf2
- 2.Sf4#
- 1...Sd2
- 2.Qxd2#
- 1...Rg3
- 2.Qe1#
- 1...Re7
- 2.Qe1#
- 2.Qxe7#
- 1...Bg2!
- threat
- 1.Rxb3?
- threat
- 2.Qd2#
- 1...Bg2
- 2.Sg3#
- 1...axb3!
- threat
- 1.Rd5?
- threat
- 2.Qe4#
- 1...Rxg4
- 2.Bxg4#
- 1...Bg2
- 2.Sg3#
- 1...Sd2
- 2.Qxd2#
- 1...Sd4
- 2.Qd2#
- 1...Rg3
- 2.Sxg3#
- 1...Re7
- 2.Qxe7#
- 1...Sc5
- 2.Qd2#
- 1...Sf2
- 2.Sf4#
- 1...Sg5
- 2.Sf4#
- 1...cxd5!
- threat
- 1.Rd6?
- threat
- 2.Qe4#
- 1...Rxg4
- 2.Bxg4#
- 1...Bg2
- 2.Sg3#
- 1...Sd2
- 2.Qxd2#
- 1...Sd4
- 2.Qd2#
- 1...Rg3
- 2.Sxg3#
- 1...Sc5
- 2.Qd2#
- 1...Sf2
- 2.Sf4#
- 1...Sg5
- 2.Sf4#
- 1...Re7!
- threat
- 1.Rd7?
- threat
- 2.Qe4#
- 1...Bg2
- 2.Sg3#
- 1...Sd2
- 2.Qxd2#
- 1...Sd4
- 2.Qd2#
- 1...Rg3
- 2.Sxg3#
- 1...Re7
- 2.Qxe7#
- 1...Sc5
- 2.Qd2#
- 1...Sf2
- 2.Sf4#
- 1...Sg5
- 2.Sf4#
- 1...Rxg4!
- threat
- 1.Bf2?
- Keys
- 1.Rd8!
- threat
- 2.Qe4#
- 1...Rxg4
- 2.Bxg4#
- 1...Bg2
- 2.Sg3#
- 1...Sd2
- 2.Qxd2#
- 1...Sd4
- 2.Qd2#
- 1...Rg3
- 2.Sxg3#
- 1...Re7
- 2.Qxe7#
- 1...Sc5
- 2.Qd2#
- 1...Sf2
- 2.Sf4#
- 1...Sg5
- 2.Sf4#
- threat
- 1.Rd8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 5
- Sets
- R(b);N_GUARD::S(B),XR(b)
- R(b);OGATE,XP(G)::B(I),XR(b)
- R(i);N_GUARD::QAR(E),XR(i)
- R(i);N_GUARD::QAR(E)
- B(a);S_CUTR(b)::S(B)
- S(d);N_GUARD::QAR1(E)
- S(d);N_GUARD::QAR1(E),XS(d)
- S(d);N_GUARD,XR(F)::QAR1(E)
- S(e);N_GUARD::S(H)
- S(e);N_GUARD::S(H),XS(e)
- Tries
- Try
- B(A);
- Threat
- DUALS(2)
- Vars
- R(b);XS(B)::QAR1(E)
- S(d);N_GUARD,XR(F)::QAR1(E)
- S(e);N_GUARD,XB(A)::S(H)
- S(d);N_GUARD::QAR1(E),XS(d)
- R(b);::QAR1(E)
- Refutation
- B(a);
- Try
- R(D);XS(d)
- Threat
- QAR1(E)
- Vars
- B(a);S_CUTR(b)::S(B)
- Refutation
- P(f);XR(D)
- Try
- R(F);
- Threat
- QAR2(E)
- Vars
- R(b);OGATE,XP(G)::B(I),XR(b)
- B(a);S_CUTR(b)::S(B)
- S(d);N_GUARD::QAR1(E),XS(d)
- S(d);N_GUARD::QAR1(E)
- R(b);N_GUARD::S(B),XR(b)
- R(i);N_GUARD::QAR(E),XR(i)
- S(e);N_GUARD::S(H)
- Refutation
- P(h);XR(F)
- Try
- R(F);
- Threat
- QAR2(E)
- Vars
- R(b);OGATE,XP(G)::B(I),XR(b)
- B(a);S_CUTR(b)::S(B)
- S(d);N_GUARD::QAR1(E),XS(d)
- S(d);N_GUARD::QAR1(E)
- R(b);N_GUARD::S(B),XR(b)
- S(e);N_GUARD::S(H)
- Refutation
- R(i);
- Try
- R(F);
- Threat
- QAR2(E)
- Vars
- B(a);S_CUTR(b)::S(B)
- S(d);N_GUARD::QAR1(E),XS(d)
- S(d);N_GUARD::QAR1(E)
- R(b);N_GUARD::S(B),XR(b)
- R(i);N_GUARD::QAR(E),XR(i)
- S(e);N_GUARD::S(H)
- Refutation
- R(b);XP(G)
- Try
- Actual
- R(F);
- Threat
- QAR2(E)
- Vars
- R(b);OGATE,XP(G)::B(I),XR(b)
- B(a);S_CUTR(b)::S(B)
- S(d);N_GUARD::QAR1(E),XS(d)
- S(d);N_GUARD::QAR1(E)
- R(b);N_GUARD::S(B),XR(b)
- R(i);N_GUARD::QAR(E),XR(i)
- S(e);N_GUARD::S(H)
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).