MESON Chess Problem Database
Problem Display
PID: 60849 (n3R3/bQ5B/2KR1P1p/4rq2/2p1k1n1/4Pp2/5P1B/2r5 w - - 0 1)
McIntyre, Donald Glenoe
Natal Mercury, 1918
#2
9 + 10
| 5639 | Some Problems For My Friends | 1957 |
SOLUTION
- SOUND
- Sets
- 1...Qg6
- 2.Bxg6#
- 1...Qxh7
- 2.Qxh7#
- 1...Rb1
- 2.Qxb1#
- 1...Re6
- 2.Kd7#
- 1...Bd4
- 2.Rxd4#
- 1...Bc5
- 2.Kb5#
- 1...Bb8
- 2.Rd4#
- 1...Sxf2
- 2.Rxe5#
- 1...Sxe3
- 2.Rxe5#
- 1...Sxf6
- 2.Rxe5#
- 1...Sb6
- 2.Rd4#
- 1...Sc7
- 2.Kxc7#
- 1...Qg6
- Tries
- 1.Bxe5?
- threat
- 2.Kb5#
- 1...Qxh7
- 2.Qxh7#
- 1...Sxf2
- 2.Ba1#
- 2.Bb2#
- 2.Bh2#
- 2.Bc3#
- 2.Bg3#
- 2.Bf4#
- 1...Sxe3
- 2.Bh2#
- 2.Bg3#
- 1...Sxf6
- 2.Bxf6#
- 1...Qg6
- 2.Bxg6#
- 1...Bd4
- 2.Rxd4#
- 1...Rb1
- 2.Qxb1#
- 1...Sb6
- 2.Rd4#
- 1...Sc7
- 2.Kxc7#
- 1...Rd1!
- threat
- 1.Rd1?
- threat
- 2.Kd6#
- 1...Re6+
- 2.Kd7#
- 1...Qxh7
- 2.Qxh7#
- 1...Sxf2
- 2.Rxe5#
- 1...Sxe3
- 2.Rxe5#
- 1...Sxf6
- 2.Rxe5#
- 1...Qg6
- 2.Bxg6#
- 1...Rb1
- 2.Qxb1#
- 1...Bc5
- 2.Kb5#
- 1...Bb8
- 2.Rd4#
- 1...Sb6
- 2.Rd4#
- 1...Sc7
- 2.Kxc7#
- 1...Rxd1!
- threat
- 1.Ree6?
- threat
- 2.Kd7#
- 1...Qxh7
- 2.Qxh7#
- 1...Sxf2
- 2.Rxe5#
- 1...Sxe3
- 2.Rxe5#
- 1...Sxf6
- 2.Rxe5#
- 1...Qg6
- 2.Bxg6#
- 1...Bd4
- 2.Rxd4#
- 1...Rb1
- 2.Qxb1#
- 1...Sb6
- 2.Rd4#
- 1...Sc7
- 2.Kxc7#
- 1...Rd1!
- threat
- 1.Qc8?
- threat
- 2.Bxf5#
- 2.Qxf5#
- 1...Qxh7
- 2.Qxg4#
- 1...Sxf2
- 2.Rxe5#
- 1...Sxe3
- 2.Rxe5#
- 1...Qg6
- 2.Bxg6#
- 2.Qxg4#
- 1...Re6!
- threat
- 1.Qb1+?
- 1...Rc2
- 2.Qxc2#
- 1...Rxb1!
- 1...Rc2
- 1.Qxa7?
- threat
- 2.Rd4#
- 2.Qd4#
- 1...Qxh7
- 2.Qxh7#
- 1...Sxf2
- 2.Rxe5#
- 2.Qd4#
- 1...Qg6
- 2.Bxg6#
- 1...Re6
- 2.Qd4#
- 1...Sb6
- 2.Rd4#
- 1...Rd1!
- threat
- 1.Qd7?
- threat
- 2.Bxf5#
- 2.Qxf5#
- 1...Qxh7
- 2.Qxg4#
- 2.Qxh7#
- 1...Sxf2
- 2.Rxe5#
- 1...Sxe3
- 2.Rxe5#
- 1...Qg6
- 2.Bxg6#
- 2.Qxg4#
- 1...Re6!
- threat
- 1.Bxe5?
- Keys
- 1.Rd2!
- threat
- 2.Kd6#
- 1...Re6+
- 2.Kd7#
- 1...Qxh7
- 2.Qxh7#
- 1...Sxf2
- 2.Rxe5#
- 1...Sxe3
- 2.Rxe5#
- 1...Sxf6
- 2.Rxe5#
- 1...Qg6
- 2.Bxg6#
- 1...Rb1
- 2.Qxb1#
- 1...Bc5
- 2.Kb5#
- 1...Bb8
- 2.Rd4#
- 1...Sb6
- 2.Rd4#
- 1...Sc7
- 2.Kxc7#
- threat
- 1.Rd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- Q(g);OGATEB::B(H),XQ(g)
- Q(g);N_SPINQ(g),OGATE,XB(H)::QAB(G),XQ(g)
- R(a);N_GUARD::QAB(G),XR(a)
- R(f);P_PINR(E)::QAB(G)+K(D)
- B(i);N_GUARD::R1(E),XB(i)
- B(i);::QAB(G)+K(D)
- B(i);N_GUARD::R1(E)
- S(e);N_GUARD,XP(A)::R1(I),XR(f)
- S(e);N_GUARD,XP(C)::R1(I),XR(f)
- S(e);N_GUARD,XP(F)::R1(I),XR(f)
- S(j);S_CUTB(i)::R1(E)
- S(j);::QAB(G)+K(D),XS(j)
- Tries
- Try
- B(B);XR(f)
- Threat
- QAB(G)+K(D)
- Vars
- Q(g);N_SPINQ(g),OGATE,XB(H)::QAB(G),XQ(g)
- S(e);OGATE,XP(F)::R(I)+B(B),XS(e)
- Q(g);OGATEB::B(H),XQ(g)
- B(i);N_GUARD::R1(E),XB(i)
- R(a);N_GUARD::QAB(G),XR(a)
- S(j);S_CUTB(i)::R1(E)
- S(j);::QAB(G)+K(D),XS(j)
- Refutation
- R(a);
- Try
- R(E);
- Threat
- QAB(G)+K(D)
- Vars
- R(f);CHECK::QAB(G)+K(D)
- Q(g);N_SPINQ(g),OGATE,XB(H)::QAB(G),XQ(g)
- S(e);N_GUARD,XP(A)::R1(I),XR(f)
- S(e);N_GUARD,XP(C)::R1(I),XR(f)
- S(e);N_GUARD,XP(F)::R1(I),XR(f)
- Q(g);OGATEB,P_PINP(F)::B(H),XQ(g)
- R(a);N_GUARD::QAB(G),XR(a)
- B(i);::QAB(G)+K(D)
- B(i);N_GUARD::R1(E)
- S(j);S_CUTB(i)::R1(E)
- S(j);::QAB(G)+K(D),XS(j)
- Refutation
- R(a);XR(E)
- Try
- R(I);
- Threat
- QAB(G)+K(D)
- Vars
- Q(g);N_SPINQ(g),OGATE,XB(H)::QAB(G),XQ(g)
- S(e);N_GUARD,XP(A)::R1(I),XR(f)
- S(e);N_GUARD,XP(C)::R1(I),XR(f)
- S(e);N_GUARD,XP(F)::R1(I),XR(f)
- Q(g);OGATEB::B(H),XQ(g)
- B(i);N_GUARD::R1(E),XB(i)
- R(a);N_GUARD::QAB(G),XR(a)
- S(j);S_CUTB(i)::R1(E)
- S(j);::QAB(G)+K(D),XS(j)
- Refutation
- R(a);
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- Q(g);N_SPINQ(g),OGATE,XB(H)::QAR2(G),XS(e)
- S(e);N_GUARD,XP(A)::R1(I),XR(f)
- S(e);N_GUARD,XP(C)::R1(I),XR(f)
- Refutation
- R(f);P_PINR(E)
- Try
- Q(G);CHECK
- Vars
- R(a);N_GUARD,N_SPINR(f),P_SPINR(a)::QAB(G),XR(a)
- Refutation
- R(a);XQ(G)
- Try
- Q(G);XB(i)
- Threat
- DUALS(2)
- Vars
- Q(g);N_SPINQ(g),OGATE,XB(H)::QAB(G),XQ(g)
- Q(g);OGATEB::B(H),XQ(g)
- R(f);P_PINR(E)::QAR1(G)
- S(j);::R1(E)
- Refutation
- R(a);
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- S(e);N_GUARD,XP(A)::R1(I),XR(f)
- S(e);N_GUARD,XP(C)::R1(I),XR(f)
- Refutation
- R(f);P_PINR(E)
- Try
- Actual
- R(E);
- Threat
- QAB(G)+K(D)
- Vars
- R(f);CHECK::QAB(G)+K(D)
- Q(g);N_SPINQ(g),OGATE,XB(H)::QAB(G),XQ(g)
- S(e);N_GUARD,XP(A)::R1(I),XR(f)
- S(e);N_GUARD,XP(C)::R1(I),XR(f)
- S(e);N_GUARD,XP(F)::R1(I),XR(f)
- Q(g);OGATEB,P_PINP(F)::B(H),XQ(g)
- R(a);N_GUARD::QAB(G),XR(a)
- B(i);::QAB(G)+K(D)
- B(i);N_GUARD::R1(E)
- S(j);S_CUTB(i)::R1(E)
- S(j);::QAB(G)+K(D),XS(j)
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).