MESON Chess Problem Database
Problem Display
PID: 151479 (8/8/8/2N1N3/K1Pp1r2/1P1B1p2/1Pqk1Pn1/Q6R w - - 0 1)
Proctor, C
Good Companions (November), 1914
#2
10 + 6
SOLUTION
- SOUND
- Sets
- 1...Qd1
- 2.Rxd1#
- 2.Qxd1#
- 1...Qxb3+
- 2.Sxb3#
- 1...Qxd3
- 2.Qd1#
- 1...Qc1
- 2.Qxc1#
- 1...Qxb2
- 2.Qxb2#
- 1...Qc3
- 2.Rd1#
- 2.Qd1#
- 1...Qxc4+
- 2.Sxc4#
- 1...Re4
- 2.Sxe4#
- 2.Sxf3#
- 1...Rg4
- 2.Sxf3#
- 1...Rh4
- 2.Sxf3#
- 1...Rf5
- 2.Se4#
- 1...Rf6
- 2.Se4#
- 1...Rf7
- 2.Se4#
- 1...Rf8
- 2.Se4#
- 1...Se1
- 2.Qxe1#
- 1...Se3
- 2.Qe1#
- 1...Sh4
- 2.Qe1#
- 1...Qd1
- Tries
- 1.Ka3?
- 1...Qxb3+
- 2.Sxb3#
- 1...Qxb2+
- 2.Qxb2#
- 1...Qxd3
- 2.Qd1#
- 1...Qxc4
- 2.Sxc4#
- 2.Rd1#
- 2.Qd1#
- 1...Qd1
- 2.Rxd1#
- 2.Qxd1#
- 1...Qc1
- 2.Qxc1#
- 1...Qc3
- 2.Rd1#
- 2.Qd1#
- 1...Re4
- 2.Sxe4#
- 2.Sxf3#
- 1...Rg4
- 2.Sxf3#
- 1...Rh4
- 2.Sxf3#
- 1...Rf5
- 2.Se4#
- 1...Rf6
- 2.Se4#
- 1...Rf7
- 2.Se4#
- 1...Rf8
- 2.Se4#
- 1...Se1
- 2.Qxe1#
- 1...Se3
- 2.Qe1#
- 1...Sh4
- 2.Qe1#
- 1...Qb1!
- 1...Qxb3+
- 1.Rf1?
- 1...Qxb3+
- 2.Sxb3#
- 1...Qxc4+
- 2.Sxc4#
- 1...Qxd3
- 2.Qd1#
- 1...Qxb2
- 2.Qxb2#
- 1...Qd1
- 2.Rxd1#
- 2.Qxd1#
- 1...Qc1
- 2.Qxc1#
- 1...Qc3
- 2.Rd1#
- 2.Qd1#
- 1...Re4
- 2.Sxe4#
- 2.Sxf3#
- 1...Rg4
- 2.Sxf3#
- 1...Rh4
- 2.Sxf3#
- 1...Rf5
- 2.Se4#
- 1...Rf6
- 2.Se4#
- 1...Rf7
- 2.Se4#
- 1...Rf8
- 2.Se4#
- 1...Se1
- 2.Qxe1#
- 1...Se3
- 2.Qe1#
- 1...Sh4
- 2.Qe1#
- 1...Qb1!
- 1...Qxb3+
- 1.Rg1?
- 1...Qxb3+
- 2.Sxb3#
- 1...Qxc4+
- 2.Sxc4#
- 1...Qxd3
- 2.Qd1#
- 1...Qxb2
- 2.Qxb2#
- 1...Qd1
- 2.Rxd1#
- 2.Qxd1#
- 1...Qc1
- 2.Qxc1#
- 1...Qc3
- 2.Rd1#
- 2.Qd1#
- 1...Re4
- 2.Sxe4#
- 2.Sxf3#
- 1...Rg4
- 2.Sxf3#
- 1...Rh4
- 2.Sxf3#
- 1...Rf5
- 2.Se4#
- 1...Rf6
- 2.Se4#
- 1...Rf7
- 2.Se4#
- 1...Rf8
- 2.Se4#
- 1...Se1
- 2.Qxe1#
- 1...Se3
- 2.Qe1#
- 1...Sh4
- 2.Qe1#
- 1...Qb1!
- 1...Qxb3+
- 1.Qb1?
- threat
- 2.Qxc2#
- 1...Qxb3+
- 2.Sxb3#
- 1...Qxc4+
- 2.Sxc4#
- 1...Qxd3
- 2.Qxd3#
- 2.Qd1#
- 1...Qxb2
- 2.Qxb2#
- 1...Qd1
- 2.Rxd1#
- 2.Qxd1#
- 1...Qc1
- 2.Qxc1#
- 1...Qc3
- 2.Rd1#
- 2.Qd1#
- 1...Se1
- 2.Qxe1#
- 1...Se3
- 2.Qe1#
- 1...Qxb1!
- threat
- 1.Ka3?
- Keys
- 1.Kb5!
- 1...Qxb3+
- 2.Sxb3#
- 1...Qxc4+
- 2.Sxc4#
- 1...Qxd3
- 2.Qd1#
- 1...Qxb2
- 2.Qxb2#
- 1...Qb1
- 2.Qa5#
- 1...Qd1
- 2.Rxd1#
- 2.Qxd1#
- 1...Qc1
- 2.Qxc1#
- 1...Qc3
- 2.Rd1#
- 2.Qd1#
- 1...Re4
- 2.Sxe4#
- 2.Sxf3#
- 1...Rg4
- 2.Sxf3#
- 1...Rh4
- 2.Sxf3#
- 1...Rf5
- 2.Se4#
- 1...Rf6
- 2.Se4#
- 1...Rf7
- 2.Se4#
- 1...Rf8
- 2.Se4#
- 1...Se1
- 2.Qxe1#
- 1...Se3
- 2.Qe1#
- 1...Sh4
- 2.Qe1#
- 1...Qxb3+
- 1.Kb5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- Q(a);CHECK,XP(E)::S(I),XQ(a)
- Q(a);N_GUARD,N_PINP(E),XB(F)::QAR1(A)
- Q(a);N_GUARD,N_PINP(E)::QAB1(A),XQ(a)
- Q(a);N_PINP(E),OGATE,XP(C)::QAR2(A),XQ(a)
- Q(a);CHECK,N_PINP(E),XP(H)::S(J),XQ(a)
- R(f);N_GUARD::S(J),XP(d)
- R(f);N_GUARD::S(I)
- S(c);N_GUARD::QAB1(A),XS(c)
- S(c);N_GUARD::QAB1(A)
- Tries
- Try
- K(G);N_SPINP(E),P-FLIGHT
- Vars
- Q(a);CHECK,XP(E)::S(I),XQ(a)
- Q(a);CHECK,OGATE,XP(C)::QAR2(A),XQ(a)
- Q(a);N_GUARD,P_PINP(E),XB(F)::QAR1(A)
- Q(a);N_GUARD,P_PINP(C)::QAB1(A),XQ(a)
- R(f);N_GUARD::S(J),XP(d)
- R(f);N_GUARD::S(I)
- S(c);N_GUARD::QAB1(A),XS(c)
- S(c);N_GUARD::QAB1(A)
- Refutation
- Q(a);
- Try
- R(B);
- Vars
- Q(a);CHECK,XP(E)::S(I),XQ(a)
- Q(a);CHECK,N_PINP(E),XP(H)::S(J),XQ(a)
- Q(a);N_GUARD,N_PINP(E),XB(F)::QAR1(A)
- Q(a);N_PINP(E),OGATE,XP(C)::QAR2(A),XQ(a)
- Q(a);N_GUARD,N_PINP(E)::QAB1(A),XQ(a)
- R(f);N_GUARD::S(J),XP(d)
- R(f);N_GUARD::S(I)
- S(c);N_GUARD::QAB1(A),XS(c)
- S(c);N_GUARD::QAB1(A)
- Refutation
- Q(a);N_PINP(E)
- Try
- R(B);
- Vars
- Q(a);CHECK,XP(E)::S(I),XQ(a)
- Q(a);CHECK,N_PINP(E),XP(H)::S(J),XQ(a)
- Q(a);N_GUARD,N_PINP(E),XB(F)::QAR1(A)
- Q(a);N_PINP(E),OGATE,XP(C)::QAR2(A),XQ(a)
- Q(a);N_GUARD,N_PINP(E)::QAB1(A),XQ(a)
- R(f);N_GUARD::S(J),XP(d)
- R(f);N_GUARD::S(I)
- S(c);N_GUARD::QAB1(A),XS(c)
- S(c);N_GUARD::QAB1(A)
- Refutation
- Q(a);N_PINP(E)
- Try
- Q(A);
- Threat
- QAR1(A),XQ(a)
- Vars
- Q(a);CHECK,XP(E)::S(I),XQ(a)
- Q(a);CHECK,N_PINP(E),XP(H)::S(J),XQ(a)
- Q(a);N_PINP(E),OGATE,XP(C)::QAR2(A),XQ(a)
- Q(a);N_GUARD,N_PINP(E)::QAB1(A),XQ(a)
- S(c);N_GUARD::QAB1(A),XS(c)
- S(c);N_GUARD::QAB1(A)
- Refutation
- Q(a);N_PINP(E),XQ(A)
- Try
- Actual
- K(G);N_SPINP(E),S_FLIGHT
- Vars
- Q(a);CHECK,XP(E)::S(I),XQ(a)
- Q(a);CHECK,XP(H)::S(J),XQ(a)
- Q(a);N_GUARD,P_PINP(H),XB(F)::QAR1(A)
- Q(a);OGATE,P_PINP(E),XP(C)::QAR2(A),XQ(a)
- Q(a);N_GUARD::QAB(A)
- Q(a);N_GUARD::QAB1(A),XQ(a)
- R(f);N_GUARD::S(J),XP(d)
- R(f);N_GUARD::S(I)
- S(c);N_GUARD::QAB1(A),XS(c)
- S(c);N_GUARD::QAB1(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).