MESON Chess Problem Database
Problem Display
PID: 117332 (3R4/8/3N1KpB/2P5/B1pNP3/1r3p2/rRp4p/n2kbQ2 w - - 0 1)
Lecomte, Roland
Themes-64, 1958
#2
10 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxb2
- 2.Qxf3#
- 1...Ra3
- 2.Rb1#
- 1...Rc3
- 2.Rb1#
- 1...Rd3
- 2.Rb1#
- 1...Rb4
- 2.Qxf3#
- 1...Rb5
- 2.Qxf3#
- 1...Rb6
- 2.Qxf3#
- 1...Rb7
- 2.Qxf3#
- 1...Rb8
- 2.Qxf3#
- 1...c1Q
- 2.Qxf3#
- 1...c1B
- 2.Qxf3#
- 1...c1R
- 2.Qxf3#
- 1...f2
- 2.Qe2#
- 1...c3
- 2.Qxf3#
- 1...Rxb2
- Tries
- 1.Sxb3?
- threat
- 2.Sxc4#
- 2.Sb5#
- 2.Sf5#
- 2.Sb7#
- 2.Sf7#
- 2.Sc8#
- 2.Se8#
- 2.Qxf3#
- 1...Sxb3
- 2.Qxf3#
- 1...cxb3
- 2.Sc4#
- 2.Sb5#
- 2.Sf5#
- 2.Sb7#
- 2.Sf7#
- 2.Sc8#
- 2.Se8#
- 2.Qxf3#
- 1...c1Q
- 2.Qxf3#
- 1...c1B
- 2.Qxf3#
- 1...h1Q
- 2.Sxc4#
- 2.Sb5#
- 2.Sf5#
- 2.Sb7#
- 2.Sf7#
- 2.Sc8#
- 2.Se8#
- 1...h1B
- 2.Sxc4#
- 2.Sb5#
- 2.Sf5#
- 2.Sb7#
- 2.Sf7#
- 2.Sc8#
- 2.Se8#
- 1...f2
- 2.Sxc4#
- 2.Sb5#
- 2.Sf5#
- 2.Sb7#
- 2.Sf7#
- 2.Sc8#
- 2.Se8#
- 1...c3
- 2.Sc4#
- 2.Sb5#
- 2.Sf5#
- 2.Sb7#
- 2.Sf7#
- 2.Sc8#
- 2.Se8#
- 2.Qxf3#
- 1...c1S!
- threat
- 1.S6b5?
- threat
- 2.Sxb3#
- 1...Rbxb2
- 2.Sxc2#
- 2.Se2#
- 2.Sb3#
- 2.Sxf3#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 2.Sc3#
- 2.Qxf3#
- 1...Rxb5
- 2.Sxc2#
- 2.Se2#
- 2.Sb3#
- 2.Sxf3#
- 2.Sxb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 2.Qxf3#
- 1...c1Q
- 2.Qxf3#
- 1...c1S
- 2.Sc3#
- 1...c1B
- 2.Sc3#
- 2.Qxf3#
- 1...Rba3
- 2.Sb3#
- 2.Rb1#
- 1...Rc3
- 2.Sxc3#
- 2.Rb1#
- 1...Rd3
- 2.Rb1#
- 1...Rb4
- 2.Sxc2#
- 2.Se2#
- 2.Sb3#
- 2.Sxf3#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 2.Sc3#
- 2.Qxf3#
- 1...Re3!
- threat
- 1.S6f5?
- threat
- 2.Sxb3#
- 1...Rb6+
- 2.Sc6#
- 1...Rbxb2
- 2.Sxc2#
- 2.Se2#
- 2.Sb3#
- 2.Sxf3#
- 2.Sb5#
- 2.Sc6#
- 2.Se6#
- 2.Qxf3#
- 1...c1Q
- 2.Qxf3#
- 1...c1S
- 2.Se3#
- 1...c1B
- 2.Qxf3#
- 1...Rba3
- 2.Sb3#
- 2.Rb1#
- 1...Rc3
- 2.Rb1#
- 1...Rd3
- 2.Rb1#
- 1...Rb4
- 2.Sxc2#
- 2.Se2#
- 2.Sb3#
- 2.Sxf3#
- 2.Sb5#
- 2.Sc6#
- 2.Se6#
- 2.Qxf3#
- 1...Rb5
- 2.Sxc2#
- 2.Se2#
- 2.Sb3#
- 2.Sxf3#
- 2.Sxb5#
- 2.Sc6#
- 2.Se6#
- 2.Qxf3#
- 1...Rb7
- 2.Qxf3#
- 1...Rb8
- 2.Qxf3#
- 1...Re3!
- threat
- 1.Bxb3?
- threat
- 2.Rb1#
- 2.Qxf3#
- 1...Rxb2
- 2.Qxf3#
- 1...Sxb3
- 2.Qxf3#
- 1...cxb3
- 2.Qxf3#
- 1...h1Q
- 2.Rb1#
- 1...h1B
- 2.Rb1#
- 1...f2
- 2.Rb1#
- 2.Qe2#
- 1...g5!
- threat
- 1.Rxb3?
- threat
- 2.Rb1#
- 2.Qxf3#
- 1...Rxa4
- 2.Qxf3#
- 1...Sxb3
- 2.Qxf3#
- 1...cxb3
- 2.Qxf3#
- 1...c1Q
- 2.Rd3#
- 1...c1S
- 2.Rd3#
- 1...c1B
- 2.Rd3#
- 1...c1R
- 2.Rd3#
- 1...h1Q
- 2.Rb1#
- 1...h1B
- 2.Rb1#
- 1...Rb2
- 2.Qxf3#
- 1...f2
- 2.Rb1#
- 2.Qe2#
- 1...g5!
- threat
- 1.Qd3+?
- 1...Rxd3
- 2.Rb1#
- 1...Bd2
- 2.Qxd2#
- 1...cxd3!
- 1...Rxd3
- 1.Sxb3?
- Keys
- 1.Sxc4!
- threat
- 2.Sxb3#
- 1...Rb6+
- 2.Sc6#
- 1...Rbxb2
- 2.Sxc2#
- 2.Se2#
- 2.Sb3#
- 2.Sxf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 2.Qxf3#
- 1...Re3
- 2.Rb1#
- 1...c1Q
- 2.Qxf3#
- 1...c1S
- 2.Se3#
- 1...c1B
- 2.Qxf3#
- 1...Rba3
- 2.Sb3#
- 2.Rb1#
- 1...Rc3
- 2.Rb1#
- 1...Rd3
- 2.Rb1#
- 1...Rb4
- 2.Sxc2#
- 2.Se2#
- 2.Sb3#
- 2.Sxf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 2.Qxf3#
- 1...Rb5
- 2.Sxc2#
- 2.Se2#
- 2.Sb3#
- 2.Sxf3#
- 2.Sxb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 2.Qxf3#
- 1...Rb7
- 2.Qxf3#
- 1...Rb8
- 2.Qxf3#
- threat
- 1.Sxc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 7
- Sets
- R(g);N_GUARD,P_SPINP(e),XR(B)::QAB(A),XP(h)
- R(g);N_GUARD,P_SPINP(e)::R(B)
- R(g);N_GUARD,P_SPINP(e)::QAB(A),XP(h)
- R(g);N_GUARD,P_PINS(G),P_SPINP(e)::QAB(A),XP(h)
- P(e);P_SPINR(g)::QAB(A),XP(h)
- P(h);N_GUARD::QAB1(A)
- P(i);S_CUTR(g)::QAB(A),XP(h)
- Tries
- Try
- S(D);XR(g)
- Threat
- DUALS(8)
- Vars
- S(a);XS(D)::QAB(A),XP(h)
- P(e);::QAB(A),XP(h)
- Refutation
- P(e);
- Try
- S(G);
- Threat
- R(J)+S(D),XR(g)
- Vars
- P(e);P_SPINR(g)::QAB(A),XP(h)
- P(e);P_SPINR(g)::S(G)
- R(g);N_GUARD,P_SPINP(e)::R(B)
- Refutation
- R(g);P_SPINP(e)
- Try
- S(G);
- Threat
- R(J)+S(D),XR(g)
- Vars
- R(g);CHECK,N_GUARD,P_SPINP(e)::R(J)+S(D)
- P(e);P_SPINR(g)::QAB(A),XP(h)
- P(e);P_SPINR(g),SBLOCK::S(G)
- R(g);N_GUARD,P_SPINP(e)::R(B)
- R(g);N_GUARD,P_SPINP(e)::QAB(A),XP(h)
- Refutation
- R(g);P_SPINP(e)
- Try
- B(C);P_PINP(e),XR(g)
- Threat
- DUALS(2)
- Vars
- R(d);XR(B)::QAB(A),XP(h)
- S(a);N_SPINP(e),XB(C)::QAB(A),XP(h)
- P(i);N_SPINP(e),XB(C)::QAB(A),XP(h)
- P(f);::R(B)
- Refutation
- P(j);
- Try
- R(B);XR(g)
- Threat
- DUALS(2)
- Vars
- R(d);XB(C)::QAB(A),XP(h)
- S(a);XR(B)::QAB(A),XP(h)
- P(i);XR(B)::QAB(A),XP(h)
- P(e);::B(C)+R(B),DCHECK
- P(f);::R(B)
- R(d);::QAB(A),XP(h)
- Refutation
- P(j);
- Try
- Q(A);CHECK,N_PINB(c)
- Vars
- R(g);P_SPINP(e),XQ(A)::R(B)
- B(c);N_GUARD,P_SPINB(c)::QAR1(A),XB(c)
- Refutation
- P(i);XQ(A)
- Try
- Actual
- S(G);XP(i)
- Threat
- R(J)+S(D),XR(g)
- Vars
- R(g);CHECK,N_GUARD,P_SPINP(e)::R(J)+S(D)
- R(g);N_GUARD,P_SPINP(e)::R(B)
- P(e);P_SPINR(g)::QAB(A),XP(h)
- P(e);P_SPINR(g),SBLOCK::S(G)
- R(g);N_GUARD,P_SPINP(e)::QAB(A),XP(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).