MESON Chess Problem Database
Problem Display
PID: 287322 (8/3NB1p1/1p2K3/8/3k4/1PpppP2/6pp/3Q2RR w - - 0 1)
Wester, Anders Emil
Probleemblad, 1959
#2
8 + 8
SOLUTION
- SOUND
- Sets
- 1...gxh1Q
- 2.Rg4#
- 1...gxh1S
- 2.Rg4#
- 1...gxh1B
- 2.Rg4#
- 1...gxh1R
- 2.Rg4#
- 1...hxg1Q
- 2.Rh4#
- 1...hxg1S
- 2.Rh4#
- 1...hxg1B
- 2.Rh4#
- 1...hxg1R
- 2.Rh4#
- 1...c2
- 2.Qa1#
- 1...b5
- 2.Bc5#
- 1...g5
- 2.Bf6#
- 1...g6
- 2.Bf6#
- 1...gxh1Q
- Tries
- 1.Se5?
- threat
- 2.Sc6#
- 2.Qxd3#
- 1...c2
- 2.Qa1#
- 2.Qxd3#
- 1...e2
- 2.Qxd3#
- 1...d2!
- threat
- 1.Bd8?
- threat
- 2.Bxb6#
- 1...c2
- 2.Qa1#
- 1...b5
- 2.Bb6#
- 1...d2!
- threat
- 1.Qb1?
- 1...gxh1Q
- 2.Rg4#
- 1...gxh1S
- 2.Rg4#
- 1...gxh1B
- 2.Rg4#
- 1...gxh1R
- 2.Rg4#
- 1...hxg1Q
- 2.Rh4#
- 1...hxg1S
- 2.Rh4#
- 1...hxg1B
- 2.Rh4#
- 1...hxg1R
- 2.Rh4#
- 1...c2
- 2.Qa1#
- 2.Qb2#
- 1...d2
- 2.Qe4#
- 1...b5
- 2.Bc5#
- 1...g5
- 2.Bf6#
- 1...g6
- 2.Bf6#
- 1...e2!
- 1...gxh1Q
- 1.Qc1?
- 1...gxh1Q
- 2.Rg4#
- 1...gxh1S
- 2.Rg4#
- 1...gxh1B
- 2.Rg4#
- 1...gxh1R
- 2.Rg4#
- 1...hxg1Q
- 2.Rh4#
- 1...hxg1S
- 2.Rh4#
- 1...hxg1B
- 2.Rh4#
- 1...hxg1R
- 2.Rh4#
- 1...c2
- 2.Qb2#
- 2.Qa1#
- 1...e2
- 2.Qf4#
- 1...b5
- 2.Bc5#
- 1...g5
- 2.Bf6#
- 1...g6
- 2.Bf6#
- 1...d2!
- 1...gxh1Q
- 1.Qe1?
- threat
- 2.Qh4#
- 1...e2
- 2.Qf2#
- 1...c2
- 2.Qb4#
- 2.Qa1#
- 1...g5
- 2.Bf6#
- 1...d2!
- threat
- 1.Se5?
- Keys
- 1.Qf1!
- 1...gxf1Q
- 2.Rg4#
- 1...gxf1S
- 2.Rg4#
- 1...gxf1B
- 2.Rg4#
- 1...gxf1R
- 2.Rg4#
- 1...gxh1Q
- 2.Rg4#
- 1...gxh1S
- 2.Rg4#
- 1...gxh1B
- 2.Rg4#
- 1...gxh1R
- 2.Rg4#
- 1...hxg1Q
- 2.Rh4#
- 1...hxg1S
- 2.Rh4#
- 1...hxg1B
- 2.Rh4#
- 1...hxg1R
- 2.Rh4#
- 1...c2
- 2.Qa1#
- 1...e2
- 2.Qf2#
- 1...d2
- 2.Qc4#
- 1...b5
- 2.Bc5#
- 1...g5
- 2.Bf6#
- 1...g6
- 2.Bf6#
- 1...gxf1Q
- 1.Qf1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- P(a);OGATE,XR(C)::R(B)
- P(b);OGATE,XR(B)::R(C)
- P(c);OGATEB::QAB(A)
- P(g);N_GUARD::B(H)
- P(h);N_GUARD::B(H)
- Tries
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- P(e);::QAR1(A),XP(d)
- Refutation
- P(d);
- Try
- B(H);
- Threat
- B(H),XP(g)
- Vars
- P(c);OGATEB::QAB(A)
- P(g);::B(H)
- Refutation
- P(d);
- Try
- Q(A);N_PINP(d)
- Vars
- P(a);OGATE,XR(C)::R(B)
- P(b);OGATE,XR(B)::R(C)
- P(d);OGATE::QAR1(A)
- P(g);N_GUARD::B(H)
- P(h);N_GUARD::B(H)
- Refutation
- P(e);
- Try
- Q(A);N_PINP(d)
- Vars
- P(a);OGATE,XR(C)::R(B)
- P(b);OGATE,XR(B)::R(C)
- P(e);OGATE::QAR2(A)
- P(g);N_GUARD::B(H)
- P(h);N_GUARD::B(H)
- Refutation
- P(d);
- Try
- Q(A);N_PINP(d)
- Threat
- QAR(A)
- Vars
- P(e);OGATEB::QAB(A)
- P(h);N_GUARD::B(H)
- Refutation
- P(d);
- Try
- Actual
- Q(A);N_PINP(d)
- Vars
- P(a);OGATE,XQ(A)::R(B)
- P(a);OGATE,XR(C)::R(B)
- P(b);OGATE,XR(B)::R(C)
- P(c);OGATEB::QAB(A)
- P(e);OGATEB::QAB(A)
- P(d);OGATE::QAR1(A)
- P(g);N_GUARD::B(H)
- P(h);N_GUARD::B(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).