MESON Chess Problem Database
Problem Display
PID: 247217 (4bq2/p1Q1n1b1/5n2/2r1rp2/2B1PPp1/2kPR3/2N5/2K5 w - - 0 1)
Lipton, Michael
The Problemist, 1954
#2
8 + 11
SOLUTION
- SOUND
- Sets
- 1...Rxc4
- 2.Qxc4#
- 2.dxc4#
- 2.d4#
- 1...Ra5
- 2.d4#
- 1...Rb5
- 2.d4#
- 1...Rcd5
- 2.d4#
- 1...Rc6
- 2.Qxe5#
- 1...Bb5
- 2.Qa5#
- 1...Sd5
- 2.Qxe5#
- 1...Rxc4
- Tries
- 1.Qb6?
- threat
- 2.Qb2#
- 2.Qb3#
- 2.Qb4#
- 1...Rxc4
- 2.Qb2#
- 2.d4#
- 1...Bb5
- 2.Qa5#
- 1...Rb5
- 2.Qd4#
- 1...Ba4
- 2.Qb2#
- 2.Qb4#
- 1...Sfd5
- 2.Qb2#
- 2.Qb3#
- 1...Sed5
- 2.Qb2#
- 2.Qb3#
- 1...Sc6
- 2.Qb2#
- 2.Qb3#
- 1...a5
- 2.Qb2#
- 2.Qb3#
- 1...axb6!
- threat
- 1.Qxc5?
- threat
- 2.Bd5#
- 2.Qa3#
- 2.Qb4#
- 2.Qd4#
- 2.Qxe5#
- 2.d4#
- 1...Rxe4
- 2.Qa3#
- 2.Qb4#
- 2.Qa5#
- 2.dxe4#
- 1...Sxe4
- 2.Qa3#
- 2.Qb4#
- 2.Qd4#
- 2.dxe4#
- 2.d4#
- 1...Bb5
- 2.Qa3#
- 2.Qb4#
- 2.Qd4#
- 2.Qxe5#
- 2.d4#
- 1...Rd5
- 2.Bxd5#
- 2.Qa3#
- 2.Qb4#
- 2.d4#
- 1...Re6
- 2.Ba2#
- 2.Bd5#
- 2.Bxe6#
- 2.Qa3#
- 2.Qb4#
- 2.Qd4#
- 2.Qa5#
- 2.d4#
- 1...Ba4
- 2.Bd5#
- 2.Qb4#
- 2.Qd4#
- 2.Qxe5#
- 2.d4#
- 1...Sfd5
- 2.Ba2#
- 2.Bxd5#
- 2.Qa3#
- 2.Qd4#
- 1...Sh5
- 2.Bd5#
- 2.Qa3#
- 2.Qb4#
- 2.Qd4#
- 2.d4#
- 1...Sd7
- 2.Qa3#
- 2.Qb4#
- 2.Qd4#
- 2.d4#
- 1...Sh7
- 2.Bd5#
- 2.Qa3#
- 2.Qb4#
- 2.Qd4#
- 2.d4#
- 1...Sfg8
- 2.Bd5#
- 2.Qa3#
- 2.Qb4#
- 2.Qd4#
- 2.d4#
- 1...Sed5
- 2.Qd4#
- 1...Sc6
- 2.d4#
- 1...Sg6
- 2.Qd4#
- 2.d4#
- 1...Sc8
- 2.Qd4#
- 2.Qxe5#
- 2.d4#
- 1...Seg8
- 2.Qd4#
- 2.Qxe5#
- 2.d4#
- 1...a5
- 2.Bd5#
- 2.Qa3#
- 2.Qd4#
- 2.Qxe5#
- 2.d4#
- 1...Rxc5!
- threat
- 1.Qxa7?
- threat
- 2.Qa1#
- 2.Qa3#
- 1...Rxc4
- 2.Qa3#
- 2.d4#
- 1...Ra5
- 2.Qd4#
- 1...Rb5
- 2.Qd4#
- 1...Ba4!
- threat
- 1.Qb6?
- Keys
- 1.Ba2!
- threat
- 2.d4#
- 1...Rxe4
- 2.dxe4#
- 1...Bb5
- 2.Qa5#
- 1...Sfd5
- 2.Qxc5#
- 1...Sed5
- 2.Qxe5#
- threat
- 1.Ba2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- R(c);::R(D)+P(C)
- R(c);N_GUARD::QAB(H),XR(d)
- B(j);S_CUTR(c)::QAB(H)
- S(h);S_CUTR(c)::QAB(H),XR(d)
- Tries
- Try
- Q(H);
- Threat
- DUALS(3)
- Vars
- B(j);S_CUTR(c)::QAB(H)
- R(c);OGATE::QAB1(H)
- Refutation
- P(g);XQ(H)
- Try
- Q(H);XR(c)
- Threat
- DUALS(6)
- Vars
- S(h);::QAB1(H)
- S(h);::R(D)+P(C)
- Refutation
- R(d);XQ(H)
- Try
- Q(H);XP(g)
- Threat
- DUALS(2)
- Vars
- R(c);OGATE::QAB1(H)
- Refutation
- B(j);
- Try
- Actual
- B(E);P_PINR(c)
- Threat
- R(D)+P(C)
- Vars
- R(d);OGATE,XP(F)::R(D)+P(C),XR(d)
- B(j);::QAB(H)
- S(f);S_CUTR(d)::QAR2(H),XR(c)
- S(h);::QAB(H),XR(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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