MESON Chess Problem Database
Problem Display
PID: 66871 (1N6/6N1/6RK/q3k3/3r2p1/2r1P2n/bB6/b3Q2B w - - 0 1)
Pashby, B
Chess, 1947
#2
8 + 8
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.Sd7#
- 1...Rc2
- 2.Sd7#
- 1...Ra3
- 2.Sc6#
- 2.Sd7#
- 1...Rb3
- 2.Sc6#
- 2.Sd7#
- 2.Re6#
- 1...Rcd3
- 2.Sc6#
- 2.Sd7#
- 1...Rxe3
- 2.Qxe3#
- 1...Rcc4
- 2.Sd7#
- 2.Re6#
- 1...Rc5
- 2.Sd7#
- 1...Rc6
- 2.Sxc6#
- 2.Sd7#
- 1...Rc8
- 2.Sd7#
- 1...Rd1
- 2.Sc6#
- 1...Rd2
- 2.Sc6#
- 1...Rdd3
- 2.Sc6#
- 1...Ra4
- 2.Sc6#
- 2.Sd7#
- 1...Rb4
- 2.Sc6#
- 2.Sd7#
- 1...Rdc4
- 2.Sd7#
- 2.Re6#
- 1...Rf4
- 2.Sc6#
- 2.Sd7#
- 1...Rd5
- 2.Sc6#
- 2.Re6#
- 1...Rd7
- 2.Sc6#
- 2.Sxd7#
- 1...Rd8
- 2.Sc6#
- 1...Bb1
- 2.Re6#
- 1...Bc4
- 2.Sc6#
- 1...Bd5
- 2.Sd7#
- 1...Be6
- 2.Rxe6#
- 1...Rc1
- Tries
- 1.Qf2?
- threat
- 2.Qf5#
- 2.Qf6#
- 2.exd4#
- 1...Rxe3
- 2.Sc6#
- 2.Sd7#
- 2.Qxe3#
- 2.Qf5#
- 2.Qf6#
- 1...Re4
- 2.Qf5#
- 1...Be6
- 2.Rxe6#
- 1...Qb4
- 2.Qf5#
- 2.Qf6#
- 1...Qb6
- 2.Qf5#
- 1...Qd8
- 2.Qf5#
- 1...Qa4
- 2.Qf5#
- 2.Qf6#
- 1...Qc5
- 2.Qf5#
- 2.Qf6#
- 1...Qd5
- 2.Qf5#
- 2.Qf6#
- 1...Qa6
- 2.Qf5#
- 2.exd4#
- 1...Qa7
- 2.Qf5#
- 2.Qf6#
- 1...Rcd3
- 2.Sc6#
- 2.Sd7#
- 2.Qf5#
- 2.Qf6#
- 1...Rcc4
- 2.Sd7#
- 2.Re6#
- 2.Qf5#
- 2.Qf6#
- 1...Rc6
- 2.Sxc6#
- 2.Sd7#
- 2.Qf5#
- 2.exd4#
- 1...Rd1
- 2.Sc6#
- 2.Qf5#
- 2.Qf6#
- 1...Rd2
- 2.Sc6#
- 2.Qf5#
- 2.Qf6#
- 1...Rdd3
- 2.Sc6#
- 2.Qf5#
- 2.Qf6#
- 1...Ra4
- 2.Sc6#
- 2.Sd7#
- 2.Qf5#
- 2.Qf6#
- 1...Rb4
- 2.Sc6#
- 2.Sd7#
- 2.Qf5#
- 2.Qf6#
- 1...Rdc4
- 2.Sd7#
- 2.Re6#
- 2.Qf5#
- 2.Qf6#
- 1...Rf4
- 2.Sc6#
- 2.Sd7#
- 1...Rd5
- 2.Sc6#
- 2.Re6#
- 2.Qf5#
- 2.Qf6#
- 1...Rd6
- 2.Qf5#
- 1...Rd7
- 2.Sc6#
- 2.Sxd7#
- 2.Qf5#
- 2.Qf6#
- 1...Rd8
- 2.Sc6#
- 2.Qf5#
- 2.Qf6#
- 1...Bb1
- 2.Re6#
- 2.Qf6#
- 2.exd4#
- 1...Sf4
- 2.exd4#
- 1...Sxf2!
- threat
- 1.Qg3+?
- 1...Rf4
- 2.Sc6#
- 2.Sd7#
- 1...Sf4!
- 1...Rf4
- 1.Qf2?
- Keys
- 1.Qb1!
- threat
- 2.Qf5#
- 1...Bxb1
- 2.Re6#
- 1...Re4
- 2.Qxe4#
- 1...Be6
- 2.Rxe6#
- 1...Rc2
- 2.Sd7#
- 1...Rcd3
- 2.Sc6#
- 2.Sd7#
- 1...Rdd3
- 2.Sc6#
- 1...Rf4
- 2.Sc6#
- 2.Sd7#
- threat
- 1.Qb1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 9
- Sets
- R(c);P_SPINR(e)::S(H)
- R(c);OGATE,P_SPINR(c),XP(D)::QAR2(A),XR(c)
- R(e);P_SPINR(c)::S(H)
- B(b);N_GUARD::R1(E)
- B(b);S_CUTR(c)::S(H)
- B(b);S_CUTR(e)::S(H)
- B(b);N_GUARD::R1(E),XB(b)
- Tries
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- R(e);P_SPINR(c)::QAR1(A)
- B(b);N_GUARD::R1(E),XB(b)
- Q(g);P_PINR(E)::QAR1(A)
- Q(g);::QAR1(A)
- R(e);P_PINR(E),P_SPINR(c)::QAR1(A)
- S(d);::P(D),XR(e)
- Refutation
- S(d);XQ(A)
- Try
- Q(A);CHECK
- Refutation
- S(d);P_SPINS(d)
- Try
- Actual
- Q(A);
- Threat
- QAR1(A)
- Vars
- B(b);N_GUARD,XQ(A)::R1(E)
- R(e);N_GUARD,P_SPINR(c)::QAR1(A),XR(e)
- B(b);N_GUARD::R1(E),XB(b)
- R(c);P_SPINR(e)::S(H)
- R(e);P_SPINR(c)::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).