MESON Chess Problem Database
Problem Display
PID: 59793 (8/8/8/8/8/6KN/4Q1P1/3n2rk w - - 0 1)
Lincoln, Robert A
Kudesnik, 2001
#2
4 + 3
| 145 | StrateGems | 2005 |
| 145 | StrateGems | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Qxe1#
- 1...Rf1
- 2.Qxf1#
- 1...Rxg2+
- 2.Qxg2#
- 1...Sb2
- 2.Sf2#
- 1...Sf2
- 2.Sxf2#
- 1...Sc3
- 2.Sf2#
- 1...Se3
- 2.Sf2#
- 1...Re1
- Tries
- 1.Sf4?
- threat
- 2.Qh5#
- 1...Rxg2+
- 2.Qxg2#
- 1...Re1
- 2.Qxe1#
- 1...Rf1
- 2.Qxf1#
- 1...Sf2!
- threat
- 1.Sg5?
- threat
- 2.Qh5#
- 1...Rxg2+
- 2.Qxg2#
- 1...Re1
- 2.Qxe1#
- 1...Rf1
- 2.Qxf1#
- 1...Sf2!
- threat
- 1.Qxd1?
- threat
- 2.Sf2#
- 2.Qxg1#
- 1...Re1
- 2.Qxe1#
- 1...Rf1
- 2.Qxf1#
- 1...Rxd1!
- threat
- 1.Qf3?
- 1...Rxg2+
- 2.Qxg2#
- 1...Sf2
- 2.Sxf2#
- 1...Rf1
- 2.Qxf1#
- 1...Sb2
- 2.Sf2#
- 1...Sc3
- 2.Sf2#
- 1...Se3
- 2.Sf2#
- 1...Re1!
- 1...Rxg2+
- 1.Qe1?
- threat
- 2.Qxg1#
- 1...Rf1
- 2.Qxf1#
- 1...Rxe1!
- threat
- 1.Qd2?
- 1...Rxg2+
- 2.Qxg2#
- 1...Re1
- 2.Qxe1#
- 1...Sb2
- 2.Sf2#
- 1...Sf2
- 2.Sxf2#
- 1...Sc3
- 2.Sf2#
- 1...Se3
- 2.Sf2#
- 1...Rf1!
- 1...Rxg2+
- 1.Qe4?
- 1...Rxg2+
- 2.Qxg2#
- 1...Re1
- 2.Qxe1#
- 1...Sb2
- 2.Sf2#
- 1...Sf2
- 2.Sxf2#
- 1...Sc3
- 2.Sf2#
- 1...Se3
- 2.Sf2#
- 1...Rf1!
- 1...Rxg2+
- 1.Sf4?
- Keys
- 1.Qf2!
- threat
- 2.Qxg1#
- 1...Rxg2+
- 2.Qxg2#
- 1...Sxf2
- 2.Sxf2#
- 1...Re1
- 2.Qxe1#
- 1...Rf1
- 2.Qxf1#
- threat
- 1.Qf2!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 3
- Sets
- R(b);N_PINP(B),OGATEB::QAR(A),XR(b)
- R(b);N_PINP(B),OGATEB::QAR2(A),XR(b)
- R(b);CHECK,OGATE,XP(B)::QAB1(A),XR(b)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- Tries
- Try
- S(D);
- Threat
- QAR(A)
- Vars
- R(b);CHECK,OGATE,XP(B)::QAB1(A),XR(b)
- R(b);N_PINP(B),OGATEB::QAR(A),XR(b)
- R(b);N_PINP(B),OGATEB::QAR2(A),XR(b)
- Refutation
- S(a);
- Try
- S(D);
- Threat
- QAR(A)
- Vars
- R(b);CHECK,OGATE,XP(B)::QAB1(A),XR(b)
- R(b);N_PINP(B),OGATEB::QAR(A),XR(b)
- R(b);N_PINP(B),OGATEB::QAR2(A),XR(b)
- Refutation
- S(a);
- Try
- Q(A);P_PINR(b),XS(a)
- Threat
- DUALS(2)
- Vars
- R(b);N_PINP(B),OGATEB::QAR(A),XR(b)
- R(b);N_PINP(B),OGATEB::QAR2(A),XR(b)
- Refutation
- R(b);N_PINP(B),N_SPINR(b),XQ(A)
- Try
- Q(A);
- Vars
- R(b);CHECK,OGATE,P_SPINR(b),XP(B)::QAB1(A),XR(b)
- S(a);N_GUARD::S(D),XS(a)
- R(b);N_PINP(B),OGATEB::QAR2(A),XR(b)
- S(a);N_GUARD::S(D)
- Refutation
- R(b);N_PINP(B)
- Try
- Q(A);P_PINR(b)
- Threat
- QAR1(A),XR(b)
- Vars
- R(b);N_PINP(B),OGATEB::QAR2(A),XR(b)
- Refutation
- R(b);N_PINP(B),N_SPINR(b),XQ(A)
- Try
- Q(A);
- Vars
- R(b);CHECK,OGATE,XP(B)::QAB1(A),XR(b)
- R(b);N_PINP(B),OGATEB::QAR(A),XR(b)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- Refutation
- R(b);N_PINP(B)
- Try
- Q(A);
- Vars
- R(b);CHECK,OGATE,P_SPINR(b),XP(B)::QAB1(A),XR(b)
- R(b);N_PINP(B),OGATEB::QAR(A),XR(b)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- Refutation
- R(b);N_PINP(B)
- Try
- Actual
- Q(A);
- Threat
- QAR1(A),XR(b)
- Vars
- R(b);CHECK,OGATE,XP(B)::QAB1(A),XR(b)
- S(a);XQ(A)::S(D),XS(a)
- R(b);N_PINP(B),OGATEB::QAR(A),XR(b)
- R(b);N_PINP(B),OGATEB::QAR2(A),XR(b)
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).