MESON Chess Problem Database
Problem Display
PID: 65353 (3R2q1/4B3/r7/Nn1Qp1b1/p2p4/1BN5/p5Rn/Kbk5 w - - 0 1)
Milewski, Stefan
The Problemist, 2006
#2
8 + 11
SOLUTION
- SOUND
- Sets
- 1...Qxd5
- 2.Bxg5#
- 1...Qe6
- 2.Bxg5#
- 1...Qh7
- 2.Bxg5#
- 1...Qe8
- 2.Bxg5#
- 1...Qh8
- 2.Bxg5#
- 1...Bc2
- 2.Rxc2#
- 1...Bd3
- 2.Sxa2#
- 1...Be4
- 2.Sxa2#
- 1...Bf5
- 2.Sxa2#
- 1...Bg6
- 2.Sxa2#
- 2.Bxg5#
- 1...Bh7
- 2.Sxa2#
- 1...Bd2
- 2.Se2#
- 1...Sa3
- 2.Bxa3#
- 1...Sxc3
- 2.Ba3#
- 1...Sa7
- 2.Ba3#
- 1...Sc7
- 2.Ba3#
- 1...axb3
- 2.Sxb3#
- 1...dxc3
- 2.Qd1#
- 1...Qxd5
- Tries
- 1.Bxa4?
- threat
- 2.Sb3#
- 1...Qxd5
- 2.Bxg5#
- 1...Sxc3
- 2.Ba3#
- 1...Bc2
- 2.Rxc2#
- 1...Bd2
- 2.Se2#
- 1...Rxa5!
- threat
- 1.Bb4?
- threat
- 2.Se2#
- 1...Sxc3
- 2.Ba3#
- 1...axb3
- 2.Sxb3#
- 1...dxc3
- 2.Qd1#
- 1...Bc2
- 2.Rxc2#
- 1...Bd3
- 2.Sxa2#
- 1...d3!
- threat
- 1.Rc8?
- threat
- 2.Sxa2#
- 1...Qxc8
- 2.Bxg5#
- 1...Sxc3
- 2.Ba3#
- 1...axb3
- 2.Sxb3#
- 1...dxc3
- 2.Qd1#
- 1...Bc2
- 2.Rxc2#
- 1...Sc7
- 2.Ba3#
- 1...Rc6!
- threat
- 1.Qf3?
- threat
- 2.Qd1#
- 1...Qxb3
- 2.Bxg5#
- 1...Sxc3
- 2.Ba3#
- 1...Bc2
- 2.Sxa2#
- 2.Rxc2#
- 1...Sxf3!
- threat
- 1.Qxd4?
- threat
- 2.Se2#
- 2.Qd1#
- 1...Qxb3
- 2.Bxg5#
- 1...Qxd8
- 2.Se2#
- 1...Sxc3
- 2.Ba3#
- 1...Sxd4
- 2.Ba3#
- 1...axb3
- 2.Qd1#
- 1...Qc4
- 2.Bxg5#
- 2.Qd1#
- 1...Qd5
- 2.Se2#
- 2.Bxg5#
- 1...Rd6
- 2.Se2#
- 1...Bc2
- 2.Sxa2#
- 2.Se2#
- 2.Rxc2#
- 1...Bd3
- 2.Sxa2#
- 1...Bd2
- 2.Se2#
- 2.Qxd2#
- 1...exd4!
- threat
- 1.Qc5?
- threat
- 2.Sxa2#
- 1...Qxb3
- 2.Bxg5#
- 1...Sxc3
- 2.Qa3#
- 1...dxc3
- 2.Rd1#
- 1...Qc4
- 2.Bxg5#
- 1...Bc2
- 2.Rxc2#
- 1...axb3!
- threat
- 1.Bxa4?
- Keys
- 1.Qc4!
- threat
- 2.Sxa2#
- 1...Qxc4
- 2.Bxg5#
- 1...Sxc3
- 2.Ba3#
- 1...axb3
- 2.Sxb3#
- 1...dxc3
- 2.Rd1#
- 1...Bc2
- 2.Rxc2#
- threat
- 1.Qc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 13
- Sets
- Q(k);N_GUARD,XQ(F)::B(G),XB(i)
- Q(k);N_GUARD::B(G),XB(i)
- B(a);N_GUARD::R1(B),XB(a)
- B(a);N_GUARD::S(D),XP(c)
- B(i);SBLOCK::S(D)
- S(g);N_GUARD::B(G),XS(g)
- S(g);N_GUARD,XS(D)::B(G)
- S(g);N_GUARD::B(G)
- P(e);XB(C)::S(E),XP(e)
- P(f);OGATE,XS(D)::QAR1(F)
- Tries
- Try
- B(C);XP(e)
- Threat
- S(E)
- Vars
- Q(k);N_GUARD,XQ(F)::B(G),XB(i)
- S(g);N_GUARD,XS(D)::B(G)
- B(a);N_GUARD::R1(B),XB(a)
- B(i);SBLOCK::S(D)
- Refutation
- R(j);XS(E)
- Try
- B(G);
- Threat
- S(D)
- Vars
- S(g);N_GUARD,XS(D)::B(G)
- P(e);XB(C)::S(E),XP(e)
- P(f);OGATE,XS(D)::QAR1(F)
- B(a);N_GUARD::R1(B),XB(a)
- B(a);N_GUARD::S(D),XP(c)
- Refutation
- P(f);
- Try
- R(H);
- Threat
- R(H)+S(D),DCHECK,XP(c)
- Vars
- Q(k);N_GUARD,XR(H)::B(G),XB(i)
- S(g);N_GUARD,P_SPINS(g),XS(D)::B(G)
- P(e);XB(C)::S(E),XP(e)
- P(f);OGATE,P_SPINP(f),XS(D)::QAR1(F)
- B(a);N_GUARD::R1(B),XB(a)
- S(g);N_GUARD::B(G)
- Refutation
- R(j);
- Try
- Q(F);
- Threat
- QAR1(F)
- Vars
- Q(k);N_GUARD,XB(C)::B(G),XB(i)
- S(g);N_GUARD,XS(D)::B(G)
- Refutation
- S(d);XQ(F)
- Try
- Q(F);XP(f)
- Threat
- DUALS(2)
- Vars
- Q(k);N_GUARD,XB(C)::B(G),XB(i)
- Q(k);XR(H)::S(D)
- S(g);N_GUARD,XS(D)::B(G)
- S(g);N_GUARD,XQ(F)::B(G)
- P(e);XB(C)::QAR1(F)
- R(j);::S(D)
- B(a);N_GUARD::S(D),XP(c)
- Refutation
- P(h);XQ(F)
- Try
- Q(F);
- Threat
- QAR(F)+S(D),DCHECK,XP(c)
- Vars
- Q(k);N_GUARD,XB(C)::B(G),XB(i)
- S(g);N_GUARD,P_SPINS(g),XS(D)::QAB(F)
- P(f);OGATE,P_SPINP(f),XS(D)::R1(H)
- Q(k);N_GUARD::B(G),XB(i)
- B(a);N_GUARD::R1(B),XB(a)
- Refutation
- P(e);XB(C)
- Try
- Actual
- Q(F);
- Threat
- QAR(F)+S(D),DCHECK,XP(c)
- Vars
- Q(k);N_GUARD,XQ(F)::B(G),XB(i)
- S(g);N_GUARD,P_SPINS(g),XS(D)::B(G)
- P(e);XB(C)::S(E),XP(e)
- P(f);OGATE,P_SPINP(f),XS(D)::R1(H)
- B(a);N_GUARD::R1(B),XB(a)
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).