MESON Chess Problem Database
Problem Display
PID: 17388 (8/2N1Bpp1/p2K4/1p5p/2pkB3/4p3/2Qp4/6R1 w - - 0 1)
Whyatt, William Albert
Melbourne Leader, 1946
#2
6 + 9
SOLUTION
- SOUND
- Sets
- 1...d1Q
- 2.Rxd1#
- 1...d1S
- 2.Rxd1#
- 1...d1B
- 2.Rxd1#
- 1...d1R
- 2.Rxd1#
- 1...c3
- 2.Qd3#
- 1...a5
- 2.Sxb5#
- 1...f5
- 2.Se6#
- 1...f6
- 2.Se6#
- 1...g5
- 2.Bf6#
- 1...g6
- 2.Bf6#
- 1...d1Q
- Tries
- 1.Bh1?
- 1...e2
- 2.Qxd2#
- 1...c3
- 2.Qe4#
- 1...d1Q
- 2.Rxd1#
- 1...d1S
- 2.Rxd1#
- 1...d1B
- 2.Rxd1#
- 1...d1R
- 2.Rxd1#
- 1...h4
- 2.Rg4#
- 1...a5
- 2.Sxb5#
- 1...f5
- 2.Se6#
- 1...f6
- 2.Se6#
- 1...g5
- 2.Bf6#
- 1...g6
- 2.Bf6#
- 1...b4!
- 1...e2
- 1.Bf3?
- 1...e2
- 2.Qxd2#
- 1...c3
- 2.Qe4#
- 1...d1Q
- 2.Rxd1#
- 1...d1S
- 2.Rxd1#
- 1...d1B
- 2.Rxd1#
- 1...d1R
- 2.Rxd1#
- 1...h4
- 2.Rg4#
- 1...a5
- 2.Sxb5#
- 1...f5
- 2.Se6#
- 1...f6
- 2.Se6#
- 1...g5
- 2.Bf6#
- 1...g6
- 2.Bf6#
- 1...b4!
- 1...e2
- 1.Bf5?
- 1...e2
- 2.Qxd2#
- 1...c3
- 2.Qd3#
- 2.Qe4#
- 1...d1Q
- 2.Rxd1#
- 1...d1S
- 2.Rxd1#
- 1...d1B
- 2.Rxd1#
- 1...d1R
- 2.Rxd1#
- 1...h4
- 2.Rg4#
- 1...a5
- 2.Sxb5#
- 1...f6
- 2.Se6#
- 1...g5
- 2.Bf6#
- 1...g6
- 2.Bf6#
- 1...b4!
- 1...e2
- 1.Bc6?
- 1...e2
- 2.Qxd2#
- 1...c3
- 2.Qe4#
- 1...d1Q
- 2.Rxd1#
- 1...d1S
- 2.Rxd1#
- 1...d1B
- 2.Rxd1#
- 1...d1R
- 2.Rxd1#
- 1...h4
- 2.Rg4#
- 1...a5
- 2.Sxb5#
- 1...f5
- 2.Se6#
- 1...f6
- 2.Se6#
- 1...g5
- 2.Bf6#
- 1...g6
- 2.Bf6#
- 1...b4!
- 1...e2
- 1.Bg6?
- 1...fxg6
- 2.Se6#
- 1...e2
- 2.Qxd2#
- 1...c3
- 2.Qd3#
- 2.Qe4#
- 1...d1Q
- 2.Rxd1#
- 1...d1S
- 2.Rxd1#
- 1...d1B
- 2.Rxd1#
- 1...d1R
- 2.Rxd1#
- 1...h4
- 2.Rg4#
- 1...a5
- 2.Sxb5#
- 1...f5
- 2.Se6#
- 1...f6
- 2.Se6#
- 1...b4!
- 1...fxg6
- 1.Bb7?
- 1...e2
- 2.Qxd2#
- 1...c3
- 2.Qe4#
- 1...d1Q
- 2.Rxd1#
- 1...d1S
- 2.Rxd1#
- 1...d1B
- 2.Rxd1#
- 1...d1R
- 2.Rxd1#
- 1...h4
- 2.Rg4#
- 1...a5
- 2.Sxb5#
- 1...f5
- 2.Se6#
- 1...f6
- 2.Se6#
- 1...g5
- 2.Bf6#
- 1...g6
- 2.Bf6#
- 1...b4!
- 1...e2
- 1.Bh7?
- 1...e2
- 2.Qxd2#
- 1...c3
- 2.Qd3#
- 2.Qe4#
- 1...d1Q
- 2.Rxd1#
- 1...d1S
- 2.Rxd1#
- 1...d1B
- 2.Rxd1#
- 1...d1R
- 2.Rxd1#
- 1...h4
- 2.Rg4#
- 1...a5
- 2.Sxb5#
- 1...f5
- 2.Se6#
- 1...f6
- 2.Se6#
- 1...g5
- 2.Bf6#
- 1...g6
- 2.Bf6#
- 1...b4!
- 1...e2
- 1.Ba8?
- 1...e2
- 2.Qxd2#
- 1...c3
- 2.Qe4#
- 1...d1Q
- 2.Rxd1#
- 1...d1S
- 2.Rxd1#
- 1...d1B
- 2.Rxd1#
- 1...d1R
- 2.Rxd1#
- 1...h4
- 2.Rg4#
- 1...a5
- 2.Sxb5#
- 1...f5
- 2.Se6#
- 1...f6
- 2.Se6#
- 1...g5
- 2.Bf6#
- 1...g6
- 2.Bf6#
- 1...b4!
- 1...e2
- 1.Rg5?
- threat
- 2.Rd5#
- 1...c3
- 2.Qd3#
- 1...f5
- 2.Se6#
- 1...e2!
- threat
- 1.Rxg7?
- threat
- 2.Bf6#
- 1...c3
- 2.Qd3#
- 1...f6
- 2.Se6#
- 2.Bxf6#
- 1...e2!
- threat
- 1.Qb2+?
- 1...c3
- 2.Qb4#
- 1...Kxe4!
- 1...c3
- 1.Bh1?
- Keys
- 1.Bd5!
- 1...e2
- 2.Qxd2#
- 1...d1Q
- 2.Rxd1#
- 1...d1S
- 2.Rxd1#
- 1...d1B
- 2.Rxd1#
- 1...d1R
- 2.Rxd1#
- 1...b4
- 2.Qxc4#
- 1...c3
- 2.Qe4#
- 1...h4
- 2.Rg4#
- 1...a5
- 2.Sxb5#
- 1...f5
- 2.Se6#
- 1...f6
- 2.Se6#
- 1...g5
- 2.Bf6#
- 1...g6
- 2.Bf6#
- 1...e2
- 1.Bd5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- P(a);OGATEB::R(A),XQ(a)
- P(a);OGATEB::R(A),XS(a)
- P(a);OGATEB::R(A),XB(a)
- P(a);OGATEB::R(A),XR(a)
- P(c);N_GUARD::QAR1(B)
- P(g);N_GUARD::S(E),XP(e)
- P(h);N_GUARD::S(E)
- P(i);N_GUARD::B(F)
- Tries
- Try
- B(C);
- Vars
- P(b);N_GUARD::QAR2(B),XP(a)
- P(c);SBLOCK::QAR1(B)
- P(a);OGATEB::R(A),XQ(a)
- P(a);OGATEB::R(A),XS(a)
- P(a);OGATEB::R(A),XB(a)
- P(a);OGATEB::R(A),XR(a)
- P(f);N_GUARD::R(A)
- P(g);N_GUARD::S(E),XP(e)
- P(h);N_GUARD::S(E)
- P(i);N_GUARD::B(F)
- Refutation
- P(e);
- Try
- B(C);
- Vars
- P(b);N_GUARD::QAR2(B),XP(a)
- P(c);SBLOCK::QAR1(B)
- P(a);OGATEB::R(A),XQ(a)
- P(a);OGATEB::R(A),XS(a)
- P(a);OGATEB::R(A),XB(a)
- P(a);OGATEB::R(A),XR(a)
- P(f);N_GUARD::R(A)
- P(g);N_GUARD::S(E),XP(e)
- P(h);N_GUARD::S(E)
- P(i);N_GUARD::B(F)
- Refutation
- P(e);
- Try
- B(C);
- Vars
- P(b);N_GUARD::QAR2(B),XP(a)
- P(a);OGATEB::R(A),XQ(a)
- P(a);OGATEB::R(A),XS(a)
- P(a);OGATEB::R(A),XB(a)
- P(a);OGATEB::R(A),XR(a)
- P(f);N_GUARD::R(A)
- P(g);N_GUARD::S(E),XP(e)
- P(h);N_GUARD::S(E)
- P(i);N_GUARD::B(F)
- Refutation
- P(e);
- Try
- B(C);
- Vars
- P(b);N_GUARD::QAR2(B),XP(a)
- P(c);SBLOCK::QAR1(B)
- P(a);OGATEB::R(A),XQ(a)
- P(a);OGATEB::R(A),XS(a)
- P(a);OGATEB::R(A),XB(a)
- P(a);OGATEB::R(A),XR(a)
- P(f);N_GUARD::R(A)
- P(g);N_GUARD::S(E),XP(e)
- P(h);N_GUARD::S(E)
- P(i);N_GUARD::B(F)
- Refutation
- P(e);
- Try
- B(C);
- Vars
- P(h);N_GUARD,XB(C)::S(E)
- P(b);N_GUARD::QAR2(B),XP(a)
- P(a);OGATEB::R(A),XQ(a)
- P(a);OGATEB::R(A),XS(a)
- P(a);OGATEB::R(A),XB(a)
- P(a);OGATEB::R(A),XR(a)
- P(f);N_GUARD::R(A)
- P(g);N_GUARD::S(E),XP(e)
- P(h);N_GUARD::S(E)
- Refutation
- P(e);
- Try
- B(C);
- Vars
- P(b);N_GUARD::QAR2(B),XP(a)
- P(c);SBLOCK::QAR1(B)
- P(a);OGATEB::R(A),XQ(a)
- P(a);OGATEB::R(A),XS(a)
- P(a);OGATEB::R(A),XB(a)
- P(a);OGATEB::R(A),XR(a)
- P(f);N_GUARD::R(A)
- P(g);N_GUARD::S(E),XP(e)
- P(h);N_GUARD::S(E)
- P(i);N_GUARD::B(F)
- Refutation
- P(e);
- Try
- B(C);
- Vars
- P(b);N_GUARD::QAR2(B),XP(a)
- P(a);OGATEB::R(A),XQ(a)
- P(a);OGATEB::R(A),XS(a)
- P(a);OGATEB::R(A),XB(a)
- P(a);OGATEB::R(A),XR(a)
- P(f);N_GUARD::R(A)
- P(g);N_GUARD::S(E),XP(e)
- P(h);N_GUARD::S(E)
- P(i);N_GUARD::B(F)
- Refutation
- P(e);
- Try
- B(C);
- Vars
- P(b);N_GUARD::QAR2(B),XP(a)
- P(c);SBLOCK::QAR1(B)
- P(a);OGATEB::R(A),XQ(a)
- P(a);OGATEB::R(A),XS(a)
- P(a);OGATEB::R(A),XB(a)
- P(a);OGATEB::R(A),XR(a)
- P(f);N_GUARD::R(A)
- P(g);N_GUARD::S(E),XP(e)
- P(h);N_GUARD::S(E)
- P(i);N_GUARD::B(F)
- Refutation
- P(e);
- Try
- R(A);
- Threat
- R1(A)
- Vars
- P(c);N_GUARD::QAR1(B)
- P(h);N_GUARD::S(E)
- Refutation
- P(b);
- Try
- R(A);XP(i)
- Threat
- B(F)
- Vars
- P(c);N_GUARD::QAR1(B)
- Refutation
- P(b);
- Try
- Q(B);CHECK
- Vars
- P(c);OGATEB,P_SPINP(c)::QAR2(B)
- Refutation
- K(d);P-FLIGHT,XB(C)
- Try
- Actual
- B(C);
- Vars
- P(b);N_GUARD::QAR2(B),XP(a)
- P(a);OGATEB::R(A),XQ(a)
- P(a);OGATEB::R(A),XS(a)
- P(a);OGATEB::R(A),XB(a)
- P(a);OGATEB::R(A),XR(a)
- P(e);N_GUARD::QAR1(B),XP(c)
- P(c);SBLOCK::QAR1(B)
- P(f);N_GUARD::R(A)
- P(g);N_GUARD::S(E),XP(e)
- P(h);N_GUARD::S(E)
- P(i);N_GUARD::B(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).