MESON Chess Problem Database
Problem Display
PID: 79967 (8/3Q4/2PprpR1/1KP1kp1B/1pp2p2/1pr1NP1p/1B2N2P/4R3 w - - 0 1)
Touw Hian Bwee
2nd HM., Schakend Nederland, 1966
#2
12 + 11
| 6352 | A Collection of Chess Problems by Touw Hian Bwee | 2008 |
SOLUTION
- SOUND
- Sets
- 1...Re7
- 2.Qxf5#
- 2.Qxd6#
- 2.Qxe7#
- 1...Re8
- 2.Qxf5#
- 2.Qxe8#
- 2.Qxd6#
- 1...dxc5
- 2.Sxc4#
- 2.Qd5#
- 1...d5
- 2.Qxd5#
- 1...Re7
- Tries
- 1.Ka4?
- 1...dxc5
- 2.Sxc4#
- 2.Qd5#
- 1...Re7
- 2.Qxf5#
- 2.Qxd6#
- 2.Qxe7#
- 1...Re8
- 2.Qxf5#
- 2.Qxe8#
- 2.Qxd6#
- 1...d5
- 2.Qxd5#
- 1...fxe3!
- 1...dxc5
- 1.Ka5?
- 1...dxc5
- 2.Sxc4#
- 2.Qd5#
- 1...Re7
- 2.Qxf5#
- 2.Qxd6#
- 2.Qxe7#
- 1...Re8
- 2.Qxf5#
- 2.Qxe8#
- 2.Qxd6#
- 1...d5
- 2.Qxd5#
- 1...fxe3!
- 1...dxc5
- 1.Ka6?
- 1...dxc5
- 2.Sxc4#
- 2.Qd5#
- 1...Re7
- 2.Qxf5#
- 2.Qxd6#
- 2.Qxe7#
- 1...Re8
- 2.Qxf5#
- 2.Qxe8#
- 2.Qxd6#
- 1...d5
- 2.Qxd5#
- 1...fxe3!
- 1...dxc5
- 1.Kb6?
- 1...dxc5
- 2.Sxc4#
- 2.Qd5#
- 1...Re7
- 2.Qxf5#
- 2.Qxd6#
- 2.Qxe7#
- 1...Re8
- 2.Qxf5#
- 2.Qxe8#
- 2.Qxd6#
- 1...d5
- 2.Qxd5#
- 1...fxe3!
- 1...dxc5
- 1.Sxf4?
- 1...Kd4
- 2.Sxf5#
- 1...Kxf4
- 2.Sd5#
- 1...dxc5
- 2.Seg2#
- 1...Re7
- 2.Qxd6#
- 1...Re8
- 2.Qxd6#
- 1...d5!
- 1...Kd4
- 1.Sc2?
- threat
- 2.Sxc3#
- 1...Kd5
- 2.Sxf4#
- 1...bxc2!
- threat
- 1.Ra1?
- 1...dxc5
- 2.Sxc4#
- 2.Qd5#
- 1...d5
- 2.Qxd5#
- 1...Re7
- 2.Qxf5#
- 2.Qxd6#
- 2.Qxe7#
- 1...Re8
- 2.Qxf5#
- 2.Qxe8#
- 2.Qxd6#
- 1...fxe3!
- 1...dxc5
- 1.Rb1?
- 1...dxc5
- 2.Sxc4#
- 2.Qd5#
- 1...d5
- 2.Qxd5#
- 1...Re7
- 2.Qxf5#
- 2.Qxd6#
- 2.Qxe7#
- 1...Re8
- 2.Qxf5#
- 2.Qxe8#
- 2.Qxd6#
- 1...fxe3!
- 1...dxc5
- 1.Rc1?
- 1...dxc5
- 2.Sxc4#
- 2.Qd5#
- 1...d5
- 2.Qxd5#
- 1...Re7
- 2.Qxf5#
- 2.Qxd6#
- 2.Qxe7#
- 1...Re8
- 2.Qxf5#
- 2.Qxe8#
- 2.Qxd6#
- 1...fxe3!
- 1...dxc5
- 1.Rd1?
- threat
- 2.Sxc4#
- 2.Rd5#
- 1...d5
- 2.Rxd5#
- 2.Qxd5#
- 1...fxe3!
- threat
- 1.Rf1?
- 1...dxc5
- 2.Sxc4#
- 2.Qd5#
- 1...d5
- 2.Qxd5#
- 1...Re7
- 2.Qxf5#
- 2.Qxd6#
- 2.Qxe7#
- 1...Re8
- 2.Qxf5#
- 2.Qxe8#
- 2.Qxd6#
- 1...fxe3!
- 1...dxc5
- 1.Reg1?
- 1...dxc5
- 2.Sxc4#
- 2.Qd5#
- 1...d5
- 2.Qxd5#
- 1...Re7
- 2.Qxf5#
- 2.Qxd6#
- 2.Qxe7#
- 1...Re8
- 2.Qxf5#
- 2.Qxe8#
- 2.Qxd6#
- 1...fxe3!
- 1...dxc5
- 1.Rh1?
- 1...dxc5
- 2.Sxc4#
- 2.Qd5#
- 1...d5
- 2.Qxd5#
- 1...Re7
- 2.Qxf5#
- 2.Qxd6#
- 2.Qxe7#
- 1...Re8
- 2.Qxf5#
- 2.Qxe8#
- 2.Qxd6#
- 1...fxe3!
- 1...dxc5
- 1.Rgg1?
- 1...dxc5
- 2.Sxc4#
- 2.Qd5#
- 1...d5
- 2.Qxd5#
- 1...Re7
- 2.Qxf5#
- 2.Qxd6#
- 2.Qxe7#
- 1...Re8
- 2.Qxf5#
- 2.Qxe8#
- 2.Qxd6#
- 1...fxe3!
- 1...dxc5
- 1.Rh6?
- 1...dxc5
- 2.Sxc4#
- 2.Qd5#
- 1...d5
- 2.Qxd5#
- 1...Re7
- 2.Qxf5#
- 2.Qxd6#
- 2.Qxe7#
- 1...Re8
- 2.Qxf5#
- 2.Qxe8#
- 2.Qxd6#
- 1...fxe3!
- 1...dxc5
- 1.Rg7?
- 1...dxc5
- 2.Sxc4#
- 2.Qd5#
- 1...d5
- 2.Qxd5#
- 1...Re7
- 2.Rxe7#
- 2.Qxf5#
- 2.Qxd6#
- 2.Qxe7#
- 1...Re8
- 2.Qxf5#
- 2.Qxe8#
- 2.Qxd6#
- 1...fxe3!
- 1...dxc5
- 1.Rg8?
- 1...dxc5
- 2.Sxc4#
- 2.Qd5#
- 1...d5
- 2.Qxd5#
- 1...Re7
- 2.Qxf5#
- 2.Qxd6#
- 2.Qxe7#
- 1...Re8
- 2.Rxe8#
- 2.Qxf5#
- 2.Qxe8#
- 2.Qxd6#
- 1...fxe3!
- 1...dxc5
- 1.Qc7?
- 1...Re7
- 2.Qxd6#
- 2.Qxe7#
- 1...Re8
- 2.Qxd6#
- 1...fxe3!
- 1...Re7
- 1.Qd8?
- 1...dxc5
- 2.Sxc4#
- 2.Qd5#
- 1...Re7
- 2.Qxe7#
- 2.Qxd6#
- 1...Re8
- 2.Qxf6#
- 2.Qxd6#
- 2.Qxe8#
- 1...d5
- 2.Qxd5#
- 1...fxe3!
- 1...dxc5
- 1.c7?
- 1...dxc5
- 2.Sxc4#
- 2.Qd5#
- 1...d5
- 2.Qxd5#
- 1...Re7
- 2.Qxf5#
- 2.Qxd6#
- 2.Qxe7#
- 1...Re8
- 2.Qxf5#
- 2.Qxe8#
- 2.Qxd6#
- 1...fxe3!
- 1...dxc5
- 1.Ka4?
- Keys
- 1.Sxf5!
- 1...Kd5
- 2.Sxf4#
- 1...Kxf5
- 2.Sd4#
- 1...dxc5
- 2.Seg3#
- 1...d5
- 2.Seg3#
- 1...Re7
- 2.Sxc3#
- 1...Re8
- 2.Sxc3#
- 1...Kd5
- 1.Sxf5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- P(i);OGATE::QAR1(L),XP(i)
- Tries
- Try
- K(G);S_FLIGHT
- Vars
- P(i);OGATE::QAR1(L),XP(i)
- Refutation
- P(f);XS(E)
- Try
- K(G);P-FLIGHT
- Vars
- P(i);OGATE::QAR1(L),XP(i)
- Refutation
- P(f);XS(E)
- Try
- K(G);S_FLIGHT
- Vars
- P(i);OGATE,P_PINP(J)::QAR1(L),XP(i)
- Refutation
- P(f);XS(E)
- Try
- K(G);P-FLIGHT
- Vars
- P(i);OGATE,P_PINP(J)::QAR1(L),XP(i)
- Refutation
- P(f);XS(E)
- Try
- S(C);XP(f)
- Vars
- K(g);P_SPINP(i),S_FLIGHT::S(E),XP(h)
- K(g);N_SPINR(b),S_FLIGHT,XS(C)::S(E)
- P(i);XP(H)::R(A)+S(E)
- R(j);N_GUARD::QAB1(L),XP(i)
- Refutation
- P(i);
- Try
- S(E);
- Threat
- R(A)+S(C),XR(b)
- Vars
- K(g);N_SPINR(b),P-FLIGHT,P_SPINP(i)::S(C),XP(f)
- Refutation
- P(a);XS(E)
- Try
- R(A);
- Vars
- P(i);OGATE::QAR1(L),XP(i)
- Refutation
- P(f);XS(E)
- Try
- R(A);
- Vars
- P(i);OGATE::QAR1(L),XP(i)
- Refutation
- P(f);XS(E)
- Try
- R(A);
- Vars
- P(i);OGATE::QAR1(L),XP(i)
- Refutation
- P(f);XS(E)
- Try
- R(A);
- Threat
- DUALS(2)
- Refutation
- P(f);XS(E)
- Try
- R(A);
- Vars
- P(i);OGATE::QAR1(L),XP(i)
- Refutation
- P(f);XS(E)
- Try
- R(A);
- Vars
- P(i);OGATE::QAR1(L),XP(i)
- Refutation
- P(f);XS(E)
- Try
- R(A);
- Vars
- P(i);OGATE::QAR1(L),XP(i)
- Refutation
- P(f);XS(E)
- Try
- R(K);
- Vars
- P(i);OGATE::QAR1(L),XP(i)
- Refutation
- P(f);XS(E)
- Try
- R(K);
- Vars
- P(i);OGATE::QAR1(L),XP(i)
- Refutation
- P(f);XS(E)
- Try
- R(K);
- Vars
- P(i);OGATE::QAR1(L),XP(i)
- Refutation
- P(f);XS(E)
- Try
- R(K);
- Vars
- P(i);OGATE::QAR1(L),XP(i)
- Refutation
- P(f);XS(E)
- Try
- Q(L);P_PINP(i)
- Vars
- R(j);N_GUARD::QAB1(L),XP(i)
- Refutation
- P(f);XS(E)
- Try
- Q(L);
- Vars
- P(i);OGATE::QAR1(L),XP(i)
- Refutation
- P(f);XS(E)
- Try
- P(J);
- Vars
- P(i);OGATE::QAR1(L),XP(i)
- Refutation
- P(f);XS(E)
- Try
- Actual
- S(E);XP(h)
- Vars
- K(g);N_SPINR(b),P-FLIGHT,P_SPINP(i)::S(C),XP(f)
- K(g);N_SPINR(b),P-FLIGHT,P_SPINR(j),XS(E)::S(C)
- P(i);XP(H)::R(A)+S(C)
- P(i);::R(A)+S(C)
- R(j);::R(A)+S(C),XR(b)
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).