MESON Chess Problem Database
Problem Display
PID: 514 (8/8/1p2p2b/1Pp1p2N/2P1k1P1/5N2/K2RP3/3R2Q1 w - - 0 1)
Waddington, I
The Observer, 1957
#2
10 + 6
SOLUTION
- SOUND
- Sets
- 1...Bxd2
- 2.Sxd2#
- 1...Bf4
- 2.Sf6#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 1...Bxd2
- Tries
- 1.Ka1?
- 1...Bxd2
- 2.Sxd2#
- 1...Bf4
- 2.Sf6#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 1...Be3!
- 1...Bxd2
- 1.Kb1?
- 1...Bxd2
- 2.Sxd2#
- 1...Bf4
- 2.Sf6#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 1...Be3!
- 1...Bxd2
- 1.Kb2?
- 1...Bxd2
- 2.Sxd2#
- 1...Bf4
- 2.Sf6#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 1...Be3!
- 1...Bxd2
- 1.Ka3?
- 1...Bxd2
- 2.Sxd2#
- 1...Bf4
- 2.Sf6#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 1...Be3!
- 1...Bxd2
- 1.Kb3?
- 1...Bxd2
- 2.Sxd2#
- 1...Bf4
- 2.Sf6#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 1...Be3!
- 1...Bxd2
- 1.Rb1?
- 1...Bxd2
- 2.Sxd2#
- 1...Bf4
- 2.Sf6#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 1...Be3!
- 1...Bxd2
- 1.Rc1?
- 1...Bxd2
- 2.Sxd2#
- 1...Bf4
- 2.Sf6#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 1...Be3!
- 1...Bxd2
- 1.Re1?
- 1...Bxd2
- 2.Sxd2#
- 1...Bf4
- 2.Sf6#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 1...Be3!
- 1...Bxd2
- 1.Rf1?
- 1...Bxd2
- 2.Sxd2#
- 1...Bf4
- 2.Sf6#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 1...Be3!
- 1...Bxd2
- 1.Rd3?
- 1...Be3
- 2.Rxe3#
- 2.Qxe3#
- 1...Bd2
- 2.Sxd2#
- 1...Bf4
- 2.Sf6#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sd2#
- 2.Sg5#
- 2.Re3#
- 2.Qe3#
- 1...Bf8
- 2.Sd2#
- 2.Sg5#
- 2.Re3#
- 2.Qe3#
- 1...Bc1!
- 1...Be3
- 1.Rd5?
- threat
- 2.Rxe5#
- 1...Bf4
- 2.Sf6#
- 1...Bg7
- 2.Sd2#
- 2.Sg5#
- 1...exd5!
- threat
- 1.Qf2?
- 1...Bxd2
- 2.Sxd2#
- 1...Bf4
- 2.Sf6#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 1...Be3!
- 1...Bxd2
- 1.Qxc5?
- threat
- 2.Qxe5#
- 1...Bf4
- 2.Sf6#
- 1...Bg7
- 2.Sg5#
- 1...bxc5!
- threat
- 1.Qg3?
- threat
- 2.Qxe5#
- 1...Ke3
- 2.Sg5#
- 1...Bg7
- 2.Sg5#
- 1...Bf4!
- threat
- 1.Ka1?
- Keys
- 1.Ra1!
- 1...Bxd2
- 2.Sxd2#
- 1...Be3
- 2.Qb1#
- 1...Bf4
- 2.Sf6#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 1...Bxd2
- 1.Ra1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(f);XR(D)::S(F),XB(f)
- B(f);SBLOCK::S(J)
- B(f);N_GUARD::S(F),XB(f)
- B(f);N_GUARD::S(F)
- Tries
- Try
- K(C);P-FLIGHT
- Vars
- B(f);XR(D)::S(F),XB(f)
- B(f);SBLOCK::S(J)
- B(f);N_GUARD::S(F),XB(f)
- B(f);N_GUARD::S(F)
- Refutation
- B(f);
- Try
- K(C);S_FLIGHT
- Vars
- B(f);XR(D)::S(F),XB(f)
- B(f);SBLOCK::S(J)
- B(f);N_GUARD::S(F),XB(f)
- B(f);N_GUARD::S(F)
- Refutation
- B(f);
- Try
- K(C);P-FLIGHT
- Vars
- B(f);XR(D)::S(F),XB(f)
- B(f);SBLOCK::S(J)
- B(f);N_GUARD::S(F),XB(f)
- B(f);N_GUARD::S(F)
- Refutation
- B(f);
- Try
- K(C);P-FLIGHT
- Vars
- B(f);XR(D)::S(F),XB(f)
- B(f);SBLOCK::S(J)
- B(f);N_GUARD::S(F),XB(f)
- B(f);N_GUARD::S(F)
- Refutation
- B(f);
- Try
- K(C);S_FLIGHT
- Vars
- B(f);XR(D)::S(F),XB(f)
- B(f);SBLOCK::S(J)
- B(f);N_GUARD::S(F),XB(f)
- B(f);N_GUARD::S(F)
- Refutation
- B(f);
- Try
- R(A);
- Vars
- B(f);XR(D)::S(F),XB(f)
- B(f);SBLOCK::S(J)
- B(f);N_GUARD::S(F),XB(f)
- B(f);N_GUARD::S(F)
- Refutation
- B(f);
- Try
- R(A);
- Vars
- B(f);XR(D)::S(F),XB(f)
- B(f);SBLOCK::S(J)
- B(f);N_GUARD::S(F),XB(f)
- B(f);N_GUARD::S(F)
- Refutation
- B(f);
- Try
- R(A);
- Vars
- B(f);XR(D)::S(F),XB(f)
- B(f);SBLOCK::S(J)
- B(f);N_GUARD::S(F),XB(f)
- B(f);N_GUARD::S(F)
- Refutation
- B(f);
- Try
- R(A);
- Vars
- B(f);XR(D)::S(F),XB(f)
- B(f);SBLOCK::S(J)
- B(f);N_GUARD::S(F),XB(f)
- B(f);N_GUARD::S(F)
- Refutation
- B(f);
- Try
- R(D);
- Vars
- B(f);N_GUARD::S(F),XB(f)
- B(f);SBLOCK::S(J)
- Refutation
- B(f);
- Try
- R(D);
- Threat
- R1(D),XP(c)
- Vars
- B(f);SBLOCK::S(J)
- Refutation
- P(e);XR(D)
- Try
- Q(B);
- Vars
- B(f);XR(D)::S(F),XB(f)
- B(f);SBLOCK::S(J)
- B(f);N_GUARD::S(F),XB(f)
- B(f);N_GUARD::S(F)
- Refutation
- B(f);
- Try
- Q(B);XP(b)
- Threat
- QAR1(B),XP(c)
- Vars
- B(f);SBLOCK::S(J)
- B(f);N_GUARD::S(F)
- Refutation
- P(d);XQ(B)
- Try
- Q(B);
- Threat
- QAR1(B),XP(c)
- Vars
- K(a);P-FLIGHT::QAR(B)+S(F)
- B(f);N_GUARD::S(F)
- Refutation
- B(f);
- Try
- Actual
- R(A);
- Vars
- B(f);XR(D)::S(F),XB(f)
- B(f);SBLOCK::QAB(B)
- B(f);SBLOCK::S(J)
- B(f);N_GUARD::S(F),XB(f)
- B(f);N_GUARD::S(F)
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).