MESON Chess Problem Database
Problem Display
PID: 33582 (4k2r/1PpppR1N/2N1P2p/1r6/b4p2/b6Q/6B1/3R3K w k - 0 1)
van Woerden, Jan
Probleemblad, 2001
#2
9 + 10
SOLUTION
- SOUND
- Sets
- 1...Rb4
- 2.Rxe7#
- 1...Ra5
- 2.b8Q#
- 2.b8R#
- 1...Rc5
- 2.Rxe7#
- 2.b8Q#
- 2.b8R#
- 1...Rd5
- 2.b8Q#
- 2.b8R#
- 1...Re5
- 2.b8Q#
- 2.b8R#
- 1...Rf5
- 2.b8Q#
- 2.b8R#
- 1...Rg5
- 2.b8Q#
- 2.b8R#
- 1...Rh5
- 2.b8Q#
- 2.b8R#
- 1...Rf8
- 2.Rxf8#
- 1...Bc1
- 2.Rxe7#
- 1...Bb2
- 2.Rxe7#
- 1...dxc6
- 2.Bxc6#
- 1...d6
- 2.Rxe7#
- 1...Rb4
- Tries
- 1.Bd5?
- threat
- 2.exd7#
- 1...Rxd5
- 2.b8Q#
- 2.b8R#
- 1...dxc6
- 2.Bxc6#
- 1...d6
- 2.Rxe7#
- 1...dxe6!
- threat
- 1.Rxd7?
- threat
- 2.Rd8#
- 1...Rd5
- 2.b8Q#
- 2.b8R#
- 1...Rb1+!
- threat
- 1.Rxf4?
- threat
- 2.exd7#
- 1...dxc6
- 2.Bxc6#
- 1...dxe6
- 2.Rd8#
- 1...Rd5
- 2.b8Q#
- 2.b8R#
- 1...Rf5
- 2.b8Q#
- 2.b8R#
- 1...d5
- 2.Qh5#
- 1...d6!
- threat
- 1.Rf5?
- threat
- 2.Qh5#
- 2.exd7#
- 1...Rxf5
- 2.b8Q#
- 2.b8R#
- 1...Rxh7
- 2.exd7#
- 1...dxc6
- 2.Bxc6#
- 2.Qh5#
- 1...dxe6
- 2.Rd8#
- 2.Qh5#
- 1...d6
- 2.Qh5#
- 1...Rd5
- 2.Qh5#
- 2.b8Q#
- 2.b8R#
- 1...Rf8
- 2.Rxf8#
- 2.exd7#
- 1...Rg8
- 2.exd7#
- 1...Bd6
- 2.Qh5#
- 1...h5
- 2.Qxh5#
- 2.exd7#
- 1...d5
- 2.Qh5#
- 1...Bxd1!
- threat
- 1.Qf5?
- threat
- 2.exd7#
- 1...Rxf5
- 2.b8Q#
- 2.b8R#
- 1...dxc6
- 2.Bxc6#
- 1...dxe6
- 2.Rd8#
- 1...d6
- 2.Rxe7#
- 1...Rd5
- 2.b8Q#
- 2.b8R#
- 1...d5!
- threat
- 1.Qxa3?
- threat
- 2.Rxe7#
- 2.Qxe7#
- 1...Rxh7
- 2.Qxe7#
- 1...d6
- 2.Rxe7#
- 1...Rb4
- 2.Rxe7#
- 1...Rc5
- 2.Rxe7#
- 2.b8Q#
- 2.b8R#
- 1...Rh5+!
- threat
- 1.Qh5?
- threat
- 2.Rf5#
- 2.Rxe7#
- 2.Rf8#
- 2.exd7#
- 1...Rxh7
- 2.exd7#
- 1...Bxd1
- 2.Rxe7#
- 2.Rf8#
- 1...dxc6
- 2.Bxc6#
- 2.Rf5#
- 2.Rf8#
- 1...dxe6
- 2.Rd8#
- 2.Rf5#
- 2.Rxe7#
- 2.Rf8#
- 1...d6
- 2.Rf5#
- 2.Rxe7#
- 2.Rf8#
- 1...Rd5
- 2.Rf5#
- 2.Rxe7#
- 2.Rf8#
- 2.b8Q#
- 2.b8R#
- 1...Rf5
- 2.Rxf5#
- 2.Rxe7#
- 2.Rf8#
- 2.exd7#
- 2.b8Q#
- 2.b8R#
- 1...Rg5
- 2.Rxe7#
- 2.Rf8#
- 2.exd7#
- 2.b8Q#
- 2.b8R#
- 1...Rf8
- 2.Rxe7#
- 2.Rxf8#
- 2.exd7#
- 1...Rg8
- 2.Rxe7#
- 2.Rf8#
- 2.exd7#
- 1...Bd6
- 2.Rf5#
- 2.Rxe7#
- 2.Rf8#
- 1...d5
- 2.Rxf4#
- 2.Rf5#
- 2.Rf6#
- 2.Rxe7#
- 2.Rg7#
- 2.Rf8#
- 1...Rxh5+!
- threat
- 1.Bd5?
- Keys
- 1.Rg7!
- threat
- 2.exd7#
- 1...Rxh7
- 2.Rg8#
- 1...dxc6
- 2.Bxc6#
- 1...dxe6
- 2.Rd8#
- 1...d6
- 2.Rxe7#
- 1...Rd5
- 2.b8Q#
- 2.b8R#
- 1...d5
- 2.Qh5#
- threat
- 1.Rg7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- R(d);S_CUTB(a)::R1(H),XP(h)
- R(d);N_GUARD::P=Q
- R(d);N_GUARD,P_PINQ(D)::P=Q
- R(j);N_GUARD::R1(H),XR(j)
- B(a);N_GUARD::R1(H),XP(h)
- P(g);OGATE,XS(E)::B(C),XP(g)
- P(g);S_CUTB(a)::R1(H),XP(h)
- Tries
- Try
- B(C);
- Threat
- P(F),XP(g)
- Vars
- R(d);N_GUARD,XB(C)::P=Q
- P(g);OGATE,XS(E)::B(C),XP(g)
- P(g);S_CUTB(a)::R1(H),XP(h)
- Refutation
- P(g);XP(F)
- Try
- R(A);XP(g)
- Threat
- R1(A)
- Vars
- R(d);N_GUARD::P=Q
- Refutation
- R(d);CHECK
- Try
- R(H);XP(c)
- Threat
- P(F),XP(g)
- Vars
- P(g);OGATE,XS(E)::B(C),XP(g)
- P(g);OGATE,XP(F)::R1(A)
- R(d);N_GUARD::P=Q
- P(g);S_CUTR(d)::QAB(D)
- Refutation
- P(g);
- Try
- R(H);
- Threat
- DUALS(2)
- Vars
- R(d);N_GUARD,XR(H)::P=Q
- R(j);XS(I)::P(F),XP(g)
- P(g);::QAB(D)
- R(j);::P(F),XP(g)
- B(a);::QAB(D)
- Refutation
- B(b);XR(A)
- Try
- Q(D);
- Threat
- P(F),XP(g)
- Vars
- R(d);N_GUARD,XQ(D)::P=Q
- P(g);OGATE,XS(E)::B(C),XP(g)
- P(g);OGATE,XP(F)::R1(A)
- P(g);S_CUTB(a)::R1(H),XP(h)
- R(d);N_GUARD::P=Q
- Refutation
- P(g);
- Try
- Q(D);XB(a)
- Threat
- DUALS(2)
- Vars
- R(j);XS(I)::QAR1(D),XP(h)
- P(g);::R1(H),XP(h)
- R(d);::R1(H),XP(h)
- Refutation
- R(d);CHECK
- Try
- Q(D);
- Threat
- DUALS(4)
- Vars
- R(j);XS(I)::P(F),XP(g)
- Refutation
- R(d);CHECK,XQ(D)
- Try
- Actual
- R(H);
- Threat
- P(F),XP(g)
- Vars
- R(j);N_GUARD,XS(I)::R(H)
- P(g);OGATE,XS(E)::B(C),XP(g)
- P(g);OGATE,XP(F)::R1(A)
- P(g);S_CUTB(a)::R1(H),XP(h)
- R(d);N_GUARD::P=Q
- P(g);S_CUTR(d)::QAB(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).