MESON Chess Problem Database
Problem Display
PID: 139956 (7k/2p2K2/2r1pNB1/b3P3/Qn6/Rp6/b1PPNBP1/Rn6 w - - 0 1)
Hartong, Jan
Termaat, Nicolaas Ljsbrand Johanne
Arbejder-Skak, 1960
#2
12 + 9
| 13255 | Hoekstenen | 1967 |
SOLUTION
- SOUND
- Sets
- 1...Rxc2
- 2.Qe8#
- 1...Rc3
- 2.Qe8#
- 1...Rc4
- 2.Qe8#
- 1...Rc5
- 2.Qe8#
- 1...Ra6
- 2.Qe8#
- 1...Rb6
- 2.Qe8#
- 1...Rd6
- 2.Qe8#
- 1...Bb6
- 2.Qa8#
- 1...Sxd2
- 2.Rh1#
- 1...Sxa3
- 2.Rh1#
- 1...Sc3
- 2.Rh1#
- 1...Sxc2
- 2.Qh4#
- 1...Sd3
- 2.Qh4#
- 1...Sd5
- 2.Qh4#
- 1...Sa6
- 2.Qh4#
- 1...bxc2
- 2.Rh3#
- 1...b2
- 2.Rh3#
- 1...Rxc2
- Tries
- 1.Sd5?
- 1...Rxc2
- 2.Qe8#
- 1...Sxd2
- 2.Rh1#
- 1...Sxa3
- 2.Rh1#
- 1...Sxc2
- 2.Qh4#
- 1...Sxd5
- 2.Qh4#
- 1...bxc2
- 2.Rh3#
- 1...Sd3
- 2.Qh4#
- 1...Rc3
- 2.Qe8#
- 1...Rc4
- 2.Qe8#
- 1...Rc5
- 2.Qe8#
- 1...Ra6
- 2.Qe8#
- 1...Rb6
- 2.Qe8#
- 1...Rd6
- 2.Qe8#
- 1...Bb6
- 2.Qa8#
- 1...Sc3
- 2.Rh1#
- 1...Sa6
- 2.Qh4#
- 1...b2
- 2.Rh3#
- 1...exd5!
- 1...Rxc2
- 1.Bb6?
- 1...Rxc2
- 2.Qe8#
- 1...Rxb6
- 2.Qe8#
- 1...Bxb6
- 2.Qa8#
- 1...Sxd2
- 2.Rh1#
- 1...Sxa3
- 2.Rh1#
- 1...Sxc2
- 2.Qh4#
- 1...bxc2
- 2.Rh3#
- 1...Sd3
- 2.Qh4#
- 1...Rc3
- 2.Qe8#
- 1...Rc4
- 2.Qe8#
- 1...Rc5
- 2.Qe8#
- 1...Rd6
- 2.Qe8#
- 1...Sc3
- 2.Rh1#
- 1...Sd5
- 2.Qh4#
- 1...Sa6
- 2.Qh4#
- 1...b2
- 2.Rh3#
- 1...cxb6!
- 1...Rxc2
- 1.Ba7?
- 1...Rxc2
- 2.Qe8#
- 1...Sxd2
- 2.Rh1#
- 1...Sxa3
- 2.Rh1#
- 1...Sxc2
- 2.Qh4#
- 1...bxc2
- 2.Rh3#
- 1...Sd3
- 2.Qh4#
- 1...Rc3
- 2.Qe8#
- 1...Rc4
- 2.Qe8#
- 1...Rc5
- 2.Qe8#
- 1...Ra6
- 2.Qe8#
- 1...Rb6
- 2.Qe8#
- 1...Rd6
- 2.Qe8#
- 1...Sc3
- 2.Rh1#
- 1...Sd5
- 2.Qh4#
- 1...Sa6
- 2.Qh4#
- 1...b2
- 2.Rh3#
- 1...Bb6!
- 1...Rxc2
- 1.Bf5?
- 1...Rxc2
- 2.Qe8#
- 1...Sxd2
- 2.Rh1#
- 1...Sxa3
- 2.Rh1#
- 1...Sxc2
- 2.Qh4#
- 1...bxc2
- 2.Rh3#
- 1...Sd3
- 2.Qh4#
- 1...Rc3
- 2.Qe8#
- 1...Rc4
- 2.Qe8#
- 1...Rc5
- 2.Qe8#
- 1...Ra6
- 2.Qe8#
- 1...Rb6
- 2.Qe8#
- 1...Rd6
- 2.Qe8#
- 1...Bb6
- 2.Qa8#
- 1...Sc3
- 2.Rh1#
- 1...Sd5
- 2.Qh4#
- 1...Sa6
- 2.Qh4#
- 1...b2
- 2.Rh3#
- 1...exf5!
- 1...Rxc2
- 1.Rxb1?
- threat
- 2.Rh1#
- 1...Rc3
- 2.Qe8#
- 1...Rc4
- 2.Qe8#
- 1...Bxb1!
- threat
- 1.Rxb3?
- threat
- 2.Rh3#
- 1...Sd3
- 2.Rb8#
- 2.Qh4#
- 1...Rc3
- 2.Qe8#
- 1...Rc4
- 2.Qe8#
- 1...Sc3
- 2.Rh1#
- 1...Bxb3!
- threat
- 1.Qb5?
- threat
- 2.Qb8#
- 1...Rb6
- 2.Qe8#
- 1...Rd6
- 2.Qe8#
- 1...Bb6
- 2.Ra8#
- 1...Sa6!
- threat
- 1.Qxc6?
- threat
- 2.Qa8#
- 2.Qe8#
- 1...Sa6
- 2.Qe8#
- 1...Sxc6!
- threat
- 1.Qxb4?
- threat
- 2.Qf8#
- 2.Qh4#
- 2.Qb8#
- 1...Rc4
- 2.Qf8#
- 2.Qb8#
- 1...Rc5
- 2.Qh4#
- 2.Qb8#
- 1...Rb6
- 2.Qf8#
- 2.Qh4#
- 1...Rd6
- 2.Qh4#
- 1...Bb6
- 2.Ra8#
- 2.Qf8#
- 2.Qh4#
- 1...Bxb4!
- threat
- 1.cxb3?
- 1...Sxd2
- 2.Rh1#
- 1...Sxa3
- 2.Rh1#
- 1...Sd3
- 2.Qh4#
- 1...Rc1
- 2.Qe8#
- 1...Rc2
- 2.Qe8#
- 1...Rc3
- 2.Qe8#
- 1...Rc4
- 2.Qe8#
- 1...Rc5
- 2.Qe8#
- 1...Ra6
- 2.Qe8#
- 1...Rb6
- 2.Qe8#
- 1...Rd6
- 2.Qe8#
- 1...Bb6
- 2.Qa8#
- 1...Sc3
- 2.Rh1#
- 1...Sc2
- 2.Qh4#
- 1...Sd5
- 2.Qh4#
- 1...Sa6
- 2.Qh4#
- 1...Bxb3!
- 1...Sxd2
- 1.c3?
- 1...Rxc3
- 2.Qe8#
- 1...Sxd2
- 2.Rh1#
- 1...Sxa3
- 2.Rh1#
- 1...Sxc3
- 2.Rh1#
- 1...Sd3
- 2.Qh4#
- 1...Rc4
- 2.Qe8#
- 1...Rc5
- 2.Qe8#
- 1...Ra6
- 2.Qe8#
- 1...Rb6
- 2.Qe8#
- 1...Rd6
- 2.Qe8#
- 1...Bb6
- 2.Qa8#
- 1...Sc2
- 2.Qh4#
- 1...Sd5
- 2.Qh4#
- 1...Sa6
- 2.Qh4#
- 1...b2!
- 1...Rxc3
- 1.Sd5?
- Keys
- 1.Bc5!
- 1...Rxc5
- 2.Qe8#
- 1...Sxd2
- 2.Rh1#
- 1...Sxa3
- 2.Rh1#
- 1...Sxc2
- 2.Qh4#
- 1...bxc2
- 2.Rh3#
- 1...Sd3
- 2.Qh4#
- 1...Ra6
- 2.Qe8#
- 1...Rb6
- 2.Qe8#
- 1...Rd6
- 2.Qe8#
- 1...Bb6
- 2.Qa8#
- 1...Sc3
- 2.Rh1#
- 1...Sd5
- 2.Qh4#
- 1...Sa6
- 2.Qh4#
- 1...b2
- 2.Rh3#
- 1...Rxc5
- 1.Bc5!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 3
- Sets
- R(f);OGATE,XP(B)::QAR(H)
- R(f);OGATE::QAR(H)
- B(e);OGATE::QAB1(H)
- S(a);OGATE,XP(C)::R(A)
- S(a);OGATE,XR(G)::R(A)
- S(a);OGATE::R(A)
- S(d);OGATE,XP(B)::QAR(H)
- S(d);OGATE::QAR(H)
- P(c);OGATE,XP(B)::R(G)
- P(c);OGATE::R(G)
- Tries
- Try
- S(J);
- Vars
- R(f);OGATE,XP(B)::QAR(H)
- S(a);OGATE,XP(C)::R(A)
- S(a);OGATE,XR(G)::R(A)
- S(d);OGATE,XP(B)::QAR(H)
- S(d);OGATE,XS(J)::QAR(H)
- P(c);OGATE,XP(B)::R(G)
- S(d);OGATE::QAR(H)
- R(f);OGATE::QAR(H)
- B(e);OGATE::QAB1(H)
- S(a);OGATE::R(A)
- P(c);OGATE::R(G)
- Refutation
- P(g);XS(J)
- Try
- B(E);
- Vars
- R(f);OGATE,XP(B)::QAR(H)
- R(f);OGATE,XB(E)::QAR(H)
- B(e);OGATE,XB(E)::QAB1(H)
- S(a);OGATE,XP(C)::R(A)
- S(a);OGATE,XR(G)::R(A)
- S(d);OGATE,XP(B)::QAR(H)
- P(c);OGATE,XP(B)::R(G)
- S(d);OGATE::QAR(H)
- R(f);OGATE::QAR(H)
- S(a);OGATE::R(A)
- P(c);OGATE::R(G)
- Refutation
- P(h);XB(E)
- Try
- B(E);
- Vars
- R(f);OGATE,XP(B)::QAR(H)
- S(a);OGATE,XP(C)::R(A)
- S(a);OGATE,XR(G)::R(A)
- S(d);OGATE,XP(B)::QAR(H)
- P(c);OGATE,XP(B)::R(G)
- S(d);OGATE::QAR(H)
- R(f);OGATE::QAR(H)
- S(a);OGATE::R(A)
- P(c);OGATE::R(G)
- Refutation
- B(e);
- Try
- B(K);
- Vars
- R(f);OGATE,XP(B)::QAR(H)
- S(a);OGATE,XP(C)::R(A)
- S(a);OGATE,XR(G)::R(A)
- S(d);OGATE,XP(B)::QAR(H)
- P(c);OGATE,XP(B)::R(G)
- S(d);OGATE::QAR(H)
- R(f);OGATE::QAR(H)
- B(e);OGATE::QAB1(H)
- S(a);OGATE::R(A)
- P(c);OGATE::R(G)
- Refutation
- P(g);XB(K)
- Try
- R(A);XS(a)
- Threat
- R(A)
- Vars
- R(f);OGATE::QAR(H)
- Refutation
- B(b);XR(A)
- Try
- R(G);XP(c)
- Threat
- R(G)
- Vars
- R(f);OGATE::QAR(H)
- S(a);OGATE::R(A)
- Refutation
- B(b);XR(G)
- Try
- Q(H);
- Threat
- QAR(H)
- Vars
- R(f);OGATE::QAR(H)
- B(e);OGATE::R(G)
- Refutation
- S(d);
- Try
- Q(H);XR(f)
- Threat
- DUALS(2)
- Vars
- S(d);::QAR(H)
- Refutation
- S(d);XQ(H)
- Try
- Q(H);XS(d)
- Threat
- DUALS(3)
- Vars
- R(f);::QAR(H)
- Refutation
- B(e);XQ(H)
- Try
- P(B);XP(c)
- Vars
- S(a);OGATE,XP(C)::R(A)
- S(a);OGATE,XR(G)::R(A)
- S(d);OGATE::QAR(H)
- R(f);OGATE::QAR(H)
- B(e);OGATE::QAB1(H)
- S(a);OGATE::R(A)
- Refutation
- B(b);XP(B)
- Try
- P(B);
- Vars
- R(f);OGATE,XP(B)::QAR(H)
- S(a);OGATE,XP(C)::R(A)
- S(a);OGATE,XR(G)::R(A)
- S(a);OGATE,XP(B)::R(A)
- S(d);OGATE::QAR(H)
- R(f);OGATE::QAR(H)
- B(e);OGATE::QAB1(H)
- Refutation
- P(c);
- Try
- Actual
- B(E);
- Vars
- R(f);OGATE,XB(E)::QAR(H)
- S(a);OGATE,XP(C)::R(A)
- S(a);OGATE,XR(G)::R(A)
- S(d);OGATE,XP(B)::QAR(H)
- P(c);OGATE,XP(B)::R(G)
- S(d);OGATE::QAR(H)
- R(f);OGATE::QAR(H)
- B(e);OGATE::QAB1(H)
- S(a);OGATE::R(A)
- P(c);OGATE::R(G)
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).