MESON Chess Problem Database
Problem Display
PID: 133601 (8/KR6/2p1N3/p1Pp4/k7/p4R2/P2QP3/3b2q1 w - - 0 1)
Rice, John Michael
4th HM., US Problem Bulletin, 1995
#2
8 + 7
| 5174 | Chess Problem Spectrum | 2003 |
SOLUTION
- SOUND
- Sets
- 1...Qf2
- 2.Qxd1#
- 1...Qh2
- 2.Qxd1#
- 2.Qd4#
- 1...Qd4
- 2.Qxd4#
- 1...Qxc5+
- 2.Sxc5#
- 1...Qf1
- 2.Qd4#
- 1...Qh1
- 2.Qd4#
- 1...Qg2
- 2.Qxd1#
- 2.Qd4#
- 1...Qg3
- 2.Qxd1#
- 2.Qd4#
- 1...Qg4
- 2.Qxd1#
- 1...Qg5
- 2.Qxd1#
- 2.Qd4#
- 1...Qg6
- 2.Qd4#
- 1...Qg7
- 2.Qxd1#
- 1...Qg8
- 2.Qxd1#
- 2.Qd4#
- 1...Bc2
- 2.Qxc2#
- 1...Bxe2
- 2.Qc2#
- 1...Bb3
- 2.axb3#
- 1...Qf2
- Tries
- 1.Kb6?
- threat
- 2.Qxa5#
- 1...Qxc5+
- 2.Sxc5#
- 1...Qe1!
- threat
- 1.Rf1?
- threat
- 2.Qxd1#
- 1...Qxc5+
- 2.Sxc5#
- 1...Qxf1
- 2.Qd4#
- 1...Bxe2
- 2.Qc2#
- 1...Qd4
- 2.Qxd4#
- 1...Qg3
- 2.Qd4#
- 1...Qg6
- 2.Qd4#
- 1...Bc2
- 2.Qxc2#
- 1...Bb3
- 2.axb3#
- 1...Qe3!
- threat
- 1.Rf2?
- threat
- 2.Qd4#
- 1...Qxf2
- 2.Qxd1#
- 1...Bxe2
- 2.Qc2#
- 1...Qg4
- 2.Qxd1#
- 1...Qg7
- 2.Qxd1#
- 1...Bb3
- 2.axb3#
- 1...d4
- 2.Qxd4#
- 1...Qe1!
- threat
- 1.Rd3?
- 1...Qxc5+
- 2.Sxc5#
- 1...Bxe2
- 2.Qc2#
- 1...Qe1
- 2.Rd4#
- 1...Qf2
- 2.Qxd1#
- 1...Qh2
- 2.Rd4#
- 2.Qxd1#
- 1...Qe3
- 2.Qxd1#
- 1...Qd4
- 2.Rxd4#
- 2.Qxd1#
- 1...Qf1
- 2.Rd4#
- 1...Qh1
- 2.Rd4#
- 1...Qg2
- 2.Rd4#
- 2.Qxd1#
- 1...Qg3
- 2.Rd4#
- 2.Qxd1#
- 1...Qg4
- 2.Qxd1#
- 1...Qg5
- 2.Rd4#
- 2.Qxd1#
- 1...Qg6
- 2.Rd4#
- 2.Qxd1#
- 1...Qg7
- 2.Qxd1#
- 1...Qg8
- 2.Rd4#
- 2.Qxd1#
- 1...Bc2
- 2.Qxc2#
- 1...Bb3
- 2.axb3#
- 1...d4!
- 1...Qxc5+
- 1.Rf4+?
- 1...Qd4
- 2.Rxd4#
- 2.Qxd1#
- 2.Qxd4#
- 1...d4!
- 1...Qd4
- 1.Qc1?
- threat
- 2.Rxa3#
- 2.Qxa3#
- 1...Qxc5+
- 2.Sxc5#
- 1...Qg3
- 2.Qxa3#
- 2.Qxd1#
- 1...Bb3
- 2.axb3#
- 1...Qe3!
- threat
- 1.Qc3?
- threat
- 2.Qxa3#
- 1...Qxc5+
- 2.Sxc5#
- 1...Bb3
- 2.Qxb3#
- 2.axb3#
- 1...Qe3!
- threat
- 1.Qe3?
- threat
- 2.Qxa3#
- 1...Bb3
- 2.Qxb3#
- 2.axb3#
- 1...Qxe3!
- threat
- 1.Qf4+?
- 1...Qd4
- 2.Qxd4#
- 1...d4!
- 1...Qd4
- 1.Qd3?
- threat
- 2.Qxa3#
- 1...Qxc5+
- 2.Sxc5#
- 1...Bb3
- 2.Qxb3#
- 2.axb3#
- 1...Qe3!
- threat
- 1.Qxd5?
- threat
- 2.Qc4#
- 2.Qxc6#
- 1...Qxc5+
- 2.Sxc5#
- 1...Bxe2
- 2.Qb3#
- 1...Qe1
- 2.Qxc6#
- 1...Qd4
- 2.Qxc6#
- 2.Qxd4#
- 1...Qg4
- 2.Qxc6#
- 2.Qxd1#
- 1...Bb3
- 2.Qxb3#
- 2.Qxc6#
- 2.axb3#
- 1...cxd5!
- threat
- 1.Kb6?
- Keys
- 1.Rc3!
- 1...Qxc5+
- 2.Sxc5#
- 1...Bxe2
- 2.Qc2#
- 1...Qe1
- 2.Qd4#
- 1...Qf2
- 2.Qxd1#
- 1...Qh2
- 2.Qxd1#
- 2.Qd4#
- 1...Qe3
- 2.Qxd1#
- 1...Qd4
- 2.Qxd4#
- 1...Qf1
- 2.Qd4#
- 1...Qh1
- 2.Qd4#
- 1...Qg2
- 2.Qxd1#
- 2.Qd4#
- 1...Qg3
- 2.Qxd1#
- 2.Qd4#
- 1...Qg4
- 2.Qxd1#
- 1...Qg5
- 2.Qxd1#
- 2.Qd4#
- 1...Qg6
- 2.Qd4#
- 1...Qg7
- 2.Qxd1#
- 1...Qg8
- 2.Qxd1#
- 2.Qd4#
- 1...Bc2
- 2.Qxc2#
- 1...Bb3
- 2.axb3#
- 1...d4
- 2.Rc4#
- 1...Qxc5+
- 1.Rc3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Q(b);N_GUARD::QAB(B),XB(a)
- Q(b);N_GUARD::QAR(B),XQ(b)
- Q(b);CHECK,XP(E)::S(F),XQ(b)
- Q(b);N_GUARD,N_PINP(E)::QAR(B)
- Q(b);N_GUARD,N_PINP(E)::QAB(B),XB(a)
- Q(b);N_GUARD,N_PINP(E),P_PINR(H)::QAB(B),XB(a)
- B(a);N_GUARD::QAB(B),XB(a)
- B(a);N_GUARD,XP(C)::QAB(B)
- B(a);OGATE::P(A),XB(a)
- Tries
- Try
- K(G);S_FLIGHT
- Threat
- QAR1(B),XP(e)
- Vars
- Q(b);CHECK,XP(E)::S(F),XQ(b)
- Refutation
- Q(b);N_PINP(E)
- Try
- R(D);
- Threat
- QAB(B),XB(a)
- Vars
- Q(b);CHECK,XP(E)::S(F),XQ(b)
- Q(b);N_GUARD,N_PINP(E),XR(D)::QAR(B)
- B(a);N_GUARD,XP(C)::QAB(B)
- Q(b);N_GUARD::QAR(B),XQ(b)
- Q(b);N_GUARD,N_PINP(E)::QAR(B)
- B(a);N_GUARD::QAB(B),XB(a)
- B(a);OGATE::P(A),XB(a)
- Refutation
- Q(b);
- Try
- R(D);N_SPINP(E)
- Threat
- QAR(B)
- Vars
- Q(b);N_GUARD,P_PINP(E),XR(D)::QAB(B),XB(a)
- B(a);N_GUARD,XP(C)::QAB(B)
- Q(b);N_GUARD::QAB(B),XB(a)
- Q(b);N_GUARD,P_PINR(H)::QAB(B),XB(a)
- B(a);OGATE::P(A),XB(a)
- P(f);::QAR(B),XP(f)
- Refutation
- Q(b);
- Try
- R(D);
- Vars
- Q(b);CHECK,XP(E)::S(F),XQ(b)
- B(a);N_GUARD,XP(C)::QAB(B)
- Q(b);N_GUARD,N_PINP(E)::R(D)
- Q(b);N_GUARD::QAB(B),XB(a)
- Q(b);N_GUARD,N_PINP(E)::QAB(B),XB(a)
- Q(b);N_GUARD,N_PINP(E),P_PINR(H)::QAB(B),XB(a)
- B(a);N_GUARD::QAB(B),XB(a)
- B(a);OGATE::P(A),XB(a)
- Refutation
- P(f);N_PINP(E)
- Try
- R(D);CHECK
- Refutation
- P(f);N_PINP(E),P_SPINP(f)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- Q(b);CHECK,XP(E)::S(F),XQ(b)
- B(a);OGATE::P(A),XB(a)
- Refutation
- Q(b);
- Try
- Q(B);
- Threat
- QAR1(B),XP(c)
- Vars
- Q(b);CHECK,XP(E)::S(F),XQ(b)
- Refutation
- Q(b);
- Try
- Q(B);N_SPINP(E)
- Threat
- QAR1(B),XP(c)
- Refutation
- Q(b);P_PINP(E),XQ(B)
- Try
- Q(B);CHECK
- Vars
- Q(b);N_GUARD,P_SPINQ(b)::QAR(B),XQ(b)
- Refutation
- P(f);N_PINP(E),P_SPINP(f)
- Try
- Q(B);
- Threat
- QAR1(B),XP(c)
- Vars
- Q(b);CHECK,XP(E)::S(F),XQ(b)
- Refutation
- Q(b);
- Try
- Q(B);XP(f)
- Threat
- DUALS(2)
- Vars
- Q(b);CHECK,XP(E)::S(F),XQ(b)
- B(a);N_GUARD,XP(C)::QAB1(B)
- Q(b);N_PINP(E)::QAB(B),XP(g)
- Refutation
- P(g);XQ(B)
- Try
- Actual
- R(D);
- Vars
- Q(b);CHECK,XP(E)::S(F),XQ(b)
- B(a);N_GUARD,XP(C)::QAB(B)
- Q(b);N_GUARD,N_PINP(E)::QAR(B)
- Q(b);N_GUARD::QAB(B),XB(a)
- Q(b);N_GUARD::QAR(B),XQ(b)
- Q(b);N_GUARD,N_PINP(E)::QAB(B),XB(a)
- Q(b);N_GUARD,N_PINP(E),P_PINR(H)::QAB(B),XB(a)
- B(a);N_GUARD::QAB(B),XB(a)
- B(a);OGATE::P(A),XB(a)
- P(f);N_GUARD,N_PINP(E)::R(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).