MESON Chess Problem Database
Problem Display
PID: 80444 (8/2p1p3/1p1p1P2/1B1kBQp1/N2b4/1PprPKP1/2PR2N1/8 w - - 0 1)
Dennis, Charles Edwin
Good Companions (October), 1922
#2
12 + 9
| 3391 | Het Half Pin Thema | 1924 |
SOLUTION
- SOUND
- Sets
- 1...Rxd2
- 2.e4#
- 1...Rxe3+
- 2.Sxe3#
- 1...Bxe3
- 2.Sxe3#
- 1...Bc5
- 2.Sxc3#
- 1...Bxe5
- 2.Rxd3#
- 1...cxd2
- 2.c4#
- 1...dxe5
- 2.Qd7#
- 1...c5
- 2.Sxb6#
- 1...c6
- 2.Bc4#
- 1...exf6
- 2.Bxd4#
- 1...e6
- 2.Qe4#
- 1...Rxd2
- Tries
- 1.Kg4?
- threat
- 2.e4#
- 1...Rxe3
- 2.Sxe3#
- 2.Rxd4#
- 1...Bxe3
- 2.Sxe3#
- 1...Bxe5
- 2.Rxd3#
- 1...dxe5!
- threat
- 1.Bd7?
- threat
- 2.Qe4#
- 2.Qe6#
- 1...Rxe3+
- 2.Sxe3#
- 1...dxe5
- 2.Qe6#
- 1...e6
- 2.Qe4#
- 2.Qxe6#
- 1...g4+!
- threat
- 1.Bf4+?
- 1...Be5
- 2.Rxd3#
- 1...e5!
- 1...Be5
- 1.Rd1?
- 1...Rxe3+
- 2.Sxe3#
- 1...Rxd1
- 2.e4#
- 1...Bxe3
- 2.Sxe3#
- 1...Bxe5
- 2.Rxd3#
- 1...dxe5
- 2.Qd7#
- 1...exf6
- 2.Bxd4#
- 1...Rd2
- 2.e4#
- 1...Bc5
- 2.Sxc3#
- 1...c5
- 2.Sxb6#
- 1...c6
- 2.Bc4#
- 1...e6
- 2.Qe4#
- 1...g4+!
- 1...Rxe3+
- 1.Rxd3?
- threat
- 2.Rxd4#
- 2.e4#
- 1...dxe5
- 2.Rxd4#
- 2.Qd7#
- 1...c5
- 2.Sxc3#
- 2.Sxb6#
- 2.e4#
- 1...g4+!
- threat
- 1.fxe7?
- threat
- 2.Bxd4#
- 1...Rxe3+
- 2.Sxe3#
- 1...Bxe3
- 2.Sxe3#
- 2.Bxc3#
- 2.Bf6#
- 2.Bg7#
- 2.Bh8#
- 1...Bxe5
- 2.Rxd3#
- 2.Qf7#
- 1...dxe5
- 2.Qd7#
- 1...Bc5
- 2.Sxc3#
- 2.Bxc3#
- 2.Bd4#
- 2.Bf4#
- 2.Bf6#
- 2.Bg7#
- 2.Bh8#
- 1...g4+!
- threat
- 1.f7?
- 1...Rxe3+
- 2.Sxe3#
- 1...Rxd2
- 2.e4#
- 1...Bxe3
- 2.Sxe3#
- 1...Bxe5
- 2.Rxd3#
- 1...cxd2
- 2.c4#
- 1...dxe5
- 2.Qd7#
- 1...Bc5
- 2.Sxc3#
- 1...c5
- 2.Sxb6#
- 1...c6
- 2.Bc4#
- 1...e6
- 2.Qe4#
- 1...g4+!
- 1...Rxe3+
- 1.Kg4?
- Keys
- 1.g4!
- 1...Rxe3+
- 2.Sxe3#
- 1...Rxd2
- 2.e4#
- 1...Bxe3
- 2.Sxe3#
- 1...Bxe5
- 2.Rxd3#
- 1...cxd2
- 2.c4#
- 1...dxe5
- 2.Qd7#
- 1...exf6
- 2.Bxd4#
- 1...Bc5
- 2.Sxc3#
- 1...c5
- 2.Sxb6#
- 1...c6
- 2.Bc4#
- 1...e6
- 2.Qe4#
- 1...Rxe3+
- 1.g4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(b);N_PINP(E),XR(B)::P(E)
- R(b);CHECK,P_SPINB(c),XP(E)::S(C),XR(b)
- B(c);P_SPINR(b),XP(E)::S(C),XB(c)
- B(c);N_GUARD,P_SPINR(b),SBLOCK::S(H),XP(a)
- B(c);OGATEB,P_SPINB(c),P_SPINR(b),XB(J)::R(B),XR(b)
- P(a);OGATE,XR(B)::P(A)
- P(g);OGATEB,P_SPINP(g),SBLOCK,XB(J)::QAR2(K)
- P(h);N_GUARD,SBLOCK,S_CUTB(c)::S(H),XP(f)
- P(h);SBLOCK::B(I)
- P(i);N_GUARD,XP(L)::QAR(K)+B(J),XB(c)
- P(i);SBLOCK::QAB1(K)
- Tries
- Try
- K(F);N_SPINP(E),S_FLIGHT
- Threat
- P(E)
- Vars
- B(c);P_SPINR(b),XP(E)::S(C),XB(c)
- B(c);OGATEB,P_SPINB(c),P_SPINR(b),XB(J)::R(B),XR(b)
- Refutation
- P(g);P_SPINP(g),XB(J)
- Try
- B(I);
- Threat
- DUALS(2)
- Vars
- R(b);CHECK,P_SPINB(c),XP(E)::S(C),XR(b)
- P(g);P_SPINP(g),XB(J)::QAB1(K)
- Refutation
- P(e);CHECK
- Try
- B(J);CHECK
- Vars
- B(c);P_SPINB(c),P_SPINR(b),S_CUTP(i)::R(B),XR(b)
- Refutation
- P(i);P_SPINP(i)
- Try
- R(B);
- Vars
- R(b);CHECK,P_SPINB(c),XP(E)::S(C),XR(b)
- R(b);N_PINP(E),XR(B)::P(E)
- B(c);P_SPINR(b),XP(E)::S(C),XB(c)
- B(c);OGATEB,P_SPINB(c),P_SPINR(b),XB(J)::R(B),XR(b)
- P(g);OGATEB,P_SPINP(g),SBLOCK,XB(J)::QAR2(K)
- P(i);N_GUARD,XP(L)::QAR(K)+B(J),XB(c)
- R(b);N_PINP(E)::P(E)
- B(c);N_GUARD,P_SPINR(b),SBLOCK::S(H),XP(a)
- P(h);N_GUARD,SBLOCK,S_CUTB(c)::S(H),XP(f)
- P(h);SBLOCK::B(I)
- P(i);SBLOCK::QAB1(K)
- Refutation
- P(e);CHECK
- Try
- R(B);N_SPINP(E),P_PINB(c),XR(b)
- Threat
- DUALS(2)
- Refutation
- P(e);CHECK
- Try
- P(L);XP(i)
- Threat
- QAR(K)+B(J),XB(c)
- Vars
- R(b);CHECK,P_SPINB(c),XP(E)::S(C),XR(b)
- P(g);OGATEB,P_SPINP(g),SBLOCK,XB(J)::QAR2(K)
- Refutation
- P(e);CHECK
- Try
- P(L);
- Vars
- R(b);CHECK,P_SPINB(c),XP(E)::S(C),XR(b)
- R(b);N_PINP(E),XR(B)::P(E)
- B(c);P_SPINR(b),XP(E)::S(C),XB(c)
- B(c);OGATEB,P_SPINB(c),P_SPINR(b),XB(J)::R(B),XR(b)
- P(a);OGATE,XR(B)::P(A)
- P(g);OGATEB,P_SPINP(g),SBLOCK,XB(J)::QAR2(K)
- B(c);N_GUARD,P_SPINR(b),SBLOCK::S(H),XP(a)
- P(h);N_GUARD,SBLOCK,S_CUTB(c)::S(H),XP(f)
- P(h);SBLOCK::B(I)
- P(i);SBLOCK::QAB1(K)
- Refutation
- P(e);CHECK
- Try
- Actual
- P(G);
- Vars
- R(b);CHECK,P_SPINB(c),XP(E)::S(C),XR(b)
- R(b);N_PINP(E),XR(B)::P(E)
- B(c);P_SPINR(b),XP(E)::S(C),XB(c)
- B(c);OGATEB,P_SPINB(c),P_SPINR(b),XB(J)::R(B),XR(b)
- P(a);OGATE,XR(B)::P(A)
- P(g);OGATEB,P_SPINP(g),SBLOCK,XB(J)::QAR2(K)
- P(i);N_GUARD,XP(L)::QAR(K)+B(J),XB(c)
- B(c);N_GUARD,P_SPINR(b),SBLOCK::S(H),XP(a)
- P(h);N_GUARD,SBLOCK,S_CUTB(c)::S(H),XP(f)
- P(h);SBLOCK::B(I)
- P(i);SBLOCK::QAB1(K)
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).