MESON Chess Problem Database
Problem Display
PID: 64339 (4Q1Bn/5rb1/3r2q1/1PN1n2R/3kp1R1/B3NpP1/3P1P2/3K4 w - - 0 1)
Peake, JL
Chess, 1947
#2
12 + 9
SOLUTION
- SOUND
- Sets
- 1...Qxh5
- 2.Rxe4#
- 1...Qg5
- 2.Rxe4#
- 1...Qe6
- 2.Rxe4#
- 1...Qf6
- 2.Rxe4#
- 1...Qh6
- 2.Rxe4#
- 1...Rdf6
- 2.Qxe5#
- 1...Rf4
- 2.Sc2#
- 1...Rf5
- 2.Sc2#
- 2.Rxe4#
- 1...Rff6
- 2.Sc2#
- 2.Qxe5#
- 1...Ra7
- 2.Sc2#
- 1...Rb7
- 2.Sc2#
- 1...Rc7
- 2.Sc2#
- 1...Rd7
- 2.Sc2#
- 1...Re7
- 2.Sc2#
- 1...Rf8
- 2.Sc2#
- 1...Bh6
- 2.Qxe5#
- 1...Bf8
- 2.Qxe5#
- 1...Sd3
- 2.Sb3#
- 1...Sc4
- 2.Sc2#
- 1...Sxg4
- 2.Bb2#
- 1...Sc6
- 2.Bb2#
- 1...Sd7
- 2.Bb2#
- 1...Qxh5
- Tries
- 1.Rxe5?
- threat
- 2.Bb2#
- 1...Rd5
- 2.Rxd5#
- 1...Bxe5!
- threat
- 1.Qc6?
- threat
- 2.Bb2#
- 1...Sd3
- 2.Sb3#
- 1...Sc4
- 2.Sc2#
- 1...Rxc6!
- threat
- 1.Qe6?
- threat
- 2.Sc2#
- 1...Qxe6
- 2.Rxe4#
- 1...Rd5
- 2.Qxd5#
- 1...Rxe6!
- threat
- 1.Qc8?
- threat
- 2.Bb2#
- 1...Rc7
- 2.Sc2#
- 1...Sd3
- 2.Sb3#
- 1...Sc4
- 2.Sc2#
- 1...Rc6!
- threat
- 1.Rxe5?
- Keys
- 1.Qe7!
- 1...Qxh5
- 2.Rxe4#
- 2.Qxd6#
- 1...Qxg4
- 2.Qxd6#
- 1...Rxe7
- 2.Sc2#
- 1...Sxg4
- 2.Bb2#
- 1...Qf5
- 2.Qxd6#
- 1...Qh7
- 2.Qxd6#
- 1...Qg5
- 2.Rxe4#
- 2.Qxd6#
- 1...Qe6
- 2.Rxe4#
- 1...Qf6
- 2.Rxe4#
- 1...Qh6
- 2.Rxe4#
- 1...Rd5
- 2.Bb2#
- 1...Ra6
- 2.Bb2#
- 1...Rb6
- 2.Bb2#
- 1...Rc6
- 2.Bb2#
- 1...Re6
- 2.Bb2#
- 1...Rdf6
- 2.Bb2#
- 2.Qxe5#
- 1...Rd7
- 2.Bb2#
- 1...Rd8
- 2.Bb2#
- 1...Rf4
- 2.Sc2#
- 1...Rf5
- 2.Sc2#
- 2.Rxe4#
- 1...Rff6
- 2.Sc2#
- 2.Qxe5#
- 1...Rf8
- 2.Sc2#
- 1...Bf6
- 2.Qxd6#
- 1...Bh6
- 2.Qxe5#
- 1...Bf8
- 2.Qxe5#
- 1...Sd3
- 2.Sb3#
- 1...Sc4
- 2.Sc2#
- 1...Sc6
- 2.Bb2#
- 1...Sd7
- 2.Bb2#
- 1...Qxh5
- 1.Qe7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 11
- REMOVED MATES = 7
- Sets
- Q(f);N_GUARD,XR(J)::R1(G),XP(c)
- Q(f);N_GUARD::R1(G),XP(c)
- R(e);S_CUTB(h)::QAB1(K),XS(d)
- R(g);N_SPINP(c)::S(E)
- R(g);::S(E)
- B(h);N_GUARD::QAB1(K),XS(d)
- S(d);SBLOCK::S(I)
- S(d);SBLOCK::S(E)
- S(d);N_SPINP(c),XR(G)::B(D)
- S(d);::B(D)
- Tries
- Try
- R(J);XS(d)
- Threat
- B(D)
- Vars
- R(e);N_GUARD::R1(J),XR(e)
- Refutation
- B(h);XR(J)
- Try
- Q(K);
- Threat
- B(D)
- Vars
- S(d);SBLOCK::S(I)
- S(d);SBLOCK::S(E)
- Refutation
- R(e);XQ(K)
- Try
- Q(K);
- Threat
- S(E)
- Vars
- Q(f);N_GUARD,XQ(K)::R1(G),XP(c)
- R(e);N_GUARD::QAR1(K),XR(e)
- Refutation
- R(e);XQ(K)
- Try
- Q(K);
- Threat
- B(D)
- Vars
- R(g);::S(E)
- S(d);SBLOCK::S(I)
- S(d);SBLOCK::S(E)
- Refutation
- R(e);
- Try
- Actual
- Q(K);
- Vars
- Q(f);N_GUARD,N_SPINP(c),XR(G)::QAR2(K),XR(e)
- R(g);XQ(K)::S(E)
- S(d);N_SPINP(c),XR(G)::B(D)
- Q(f);N_GUARD::QAR2(K),XR(e)
- Q(f);N_GUARD::R1(G),XP(c)
- R(e);::B(D)
- R(g);N_SPINP(c)::S(E)
- R(g);::S(E)
- B(h);S_CUTQ(f)::QAR2(K),XR(e)
- B(h);N_GUARD::QAB1(K),XS(d)
- S(d);SBLOCK::S(I)
- S(d);SBLOCK::S(E)
- S(d);::B(D)
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).