MESON Chess Problem Database
Problem Display
PID: 146510 (4R1B1/3p4/r1p4p/1q3R1K/2N2bQ1/3k2pp/2ppN3/5r2 w - - 0 1)
Lipton, Michael
The Problemist, 2012
#2
7 + 12
SOLUTION
- SOUND
- Sets
- 1...Qa4
- 2.Sb2#
- 1...Qb2
- 2.Sxb2#
- 1...Qa5
- 2.Sb2#
- 1...Qc5
- 2.Sb2#
- 1...Qd5
- 2.Sb2#
- 1...Qxf5+
- 2.Qxf5#
- 1...Be3
- 2.Rxe3#
- 1...Bg5
- 2.Qd4#
- 2.Qe4#
- 1...Bd6
- 2.Re3#
- 2.Qd4#
- 2.Qe4#
- 1...Bc7
- 2.Re3#
- 2.Qd4#
- 2.Qe4#
- 1...Bb8
- 2.Re3#
- 2.Qd4#
- 2.Qe4#
- 1...Qa4
- Tries
- 1.Rxb5?
- threat
- 2.Sb2#
- 2.Rb3#
- 2.Qf5#
- 2.Qg6#
- 1...cxb5
- 2.Sb2#
- 2.Qf5#
- 1...c1Q
- 2.Qf5#
- 2.Qg6#
- 1...c1S
- 2.Qf5#
- 2.Qg6#
- 1...c1B
- 2.Qf5#
- 2.Qg6#
- 1...c1R
- 2.Qf5#
- 2.Qg6#
- 1...d5
- 2.Sb2#
- 1...d1Q
- 2.Rb3#
- 2.Qf5#
- 2.Qg6#
- 1...d1S
- 2.Qf5#
- 2.Qg6#
- 1...d1B
- 2.Rb3#
- 2.Qf5#
- 2.Qg6#
- 1...d1R
- 2.Rb3#
- 2.Qf5#
- 2.Qg6#
- 1...Rb1
- 2.Qf5#
- 2.Qg6#
- 1...Ra2
- 2.Rb3#
- 2.Qf5#
- 2.Qg6#
- 1...Ra3
- 2.Sb2#
- 2.Qf5#
- 2.Qg6#
- 1...Ra5
- 2.Sb2#
- 2.Qf5#
- 2.Qg6#
- 1...Rb6
- 2.Sb2#
- 2.Qf5#
- 2.Qg6#
- 1...Be3
- 2.Sb2#
- 2.Se5#
- 2.Rb3#
- 2.Rxe3#
- 1...Bg5
- 2.Sb2#
- 2.Rb3#
- 2.Qxd7#
- 2.Qd4#
- 2.Qe4#
- 1...Bd6
- 2.Sb2#
- 2.Rb3#
- 2.Re3#
- 2.Qd4#
- 2.Qe4#
- 1...Bc7
- 2.Sb2#
- 2.Rb3#
- 2.Re3#
- 2.Qd4#
- 2.Qe4#
- 1...Bb8
- 2.Sb2#
- 2.Rb3#
- 2.Re3#
- 2.Qd4#
- 2.Qe4#
- 1...c5
- 2.Sb2#
- 2.Rb3#
- 2.Qf5#
- 1...Be5!
- threat
- 1.Qf3+?
- 1...Be3
- 2.Rxe3#
- 2.Qxe3#
- 1...Rxf3!
- 1...Be3
- 1.Qxg3+?
- 1...Be3
- 2.Rxe3#
- 2.Qxe3#
- 1...Bxg3
- 2.Re3#
- 1...Rf3!
- 1...Be3
- 1.Rxb5?
- Keys
- 1.Qg6!
- threat
- 2.Rxb5#
- 2.Rc5#
- 2.Rfe5#
- 1...Qxf5+
- 2.Qxf5#
- 1...Qxc4
- 2.Rd5#
- 1...Qd5
- 2.Sb2#
- 1...Qe5
- 2.Rfxe5#
- 1...Be3
- 2.Rxe3#
- 1...Be5
- 2.Rf2#
- 1...d5
- 2.Rxf4#
- 1...Qa4
- 2.Sb2#
- 2.Rxf4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rfe5#
- 2.Rg5#
- 2.Rf6#
- 2.Rff8#
- 1...Qb1
- 2.Rxf4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rfe5#
- 2.Rg5#
- 2.Rf6#
- 2.Rff8#
- 1...Qb2
- 2.Sxb2#
- 2.Rxf4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rfe5#
- 2.Rg5#
- 2.Rf6#
- 2.Rff8#
- 1...Qb3
- 2.Rxf4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rfe5#
- 2.Rg5#
- 2.Rf6#
- 2.Rff8#
- 1...Qb4
- 2.Rxf4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rfe5#
- 2.Rg5#
- 2.Rf6#
- 2.Rff8#
- 1...Qa5
- 2.Sb2#
- 2.Rxa5#
- 2.Rb5#
- 2.Rc5#
- 2.Rfe5#
- 1...Qc5
- 2.Sb2#
- 2.Rxc5#
- 2.Rfe5#
- 1...Qb6
- 2.Rxf4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rfe5#
- 2.Rg5#
- 2.Rf6#
- 2.Rff8#
- 1...Qb7
- 2.Rxf4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rfe5#
- 2.Rg5#
- 2.Rf6#
- 2.Rff8#
- 1...Qb8
- 2.Rxf4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rfe5#
- 2.Rg5#
- 2.Rf6#
- 2.Rff8#
- 1...Bg5
- 2.Rf3#
- 1...Bd6
- 2.Re3#
- 1...Bc7
- 2.Re3#
- 1...Bb8
- 2.Re3#
- 1...c5
- 2.Rf6#
- threat
- 1.Qg6!
This is a version of 3167
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 4
- Sets
- Q(h);N_GUARD,N_PINR(D)::S(B)
- Q(h);N_GUARD,N_PINR(D)::S(B),XQ(h)
- Q(h);N_GUARD::S(B)
- Q(h);CHECK,OGATE,XR(D)::QAB(C),XQ(h)
- B(g);N_GUARD::R1(F),XB(g)
- Tries
- Try
- R(D);N_SPINR(D),XQ(h)
- Threat
- DUALS(4)
- Vars
- P(l);::S(B)
- Refutation
- B(g);
- Try
- Q(C);CHECK
- Refutation
- R(a);XQ(C)
- Try
- Q(C);CHECK,XP(e)
- Vars
- B(g);N_GUARD,XQ(C)::R1(F)
- Refutation
- R(a);P_SPINR(a)
- Try
- Actual
- Q(C);
- Threat
- DUALS(3)
- Vars
- Q(h);CHECK,OGATE,P_SPINQ(h),XR(D)::QAB(C),XQ(h)
- Q(h);N_PINR(D),SBLOCK,XS(B)::QAB(C)+R(D),DCHECK
- Q(h);N_GUARD::S(B)
- Q(h);::QAB(C)+R(D),XQ(h)
- B(g);N_GUARD::R1(F),XB(g)
- B(g);N_PINR(D)::QAB(C)+R(D)
- P(l);N_PINR(D)::QAB(C)+R(D),XB(g)
- B(g);N_PINR(D)::QAB(C)+R(D),DCHECK
- B(g);N_GUARD::R1(F)
- P(j);N_PINR(D)::QAB(C)+R(D)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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