MESON Chess Problem Database
Problem Display
PID: 147617 (n4brq/1K1kp1nR/2NN2B1/7p/5Q2/1p6/3PR3/3r4 w - - 0 1)
Nietvelt, Gustaaf Josephus
1st HM., Bristol Times, 1929
#2
8 + 10
| 14868 | Pirnie Collection | 2013 |
SOLUTION
- SOUND
- Sets
- 1...Sf5
- 2.Bxf5#
- 2.Be8#
- 1...Se6
- 2.Be8#
- 1...Se8
- 2.Bf5#
- 2.Bxe8#
- 1...exd6
- 2.Bf5#
- 2.Be8#
- 2.Qf5#
- 1...e6
- 2.Be8#
- 1...Sf5
- Tries
- 1.Sc4?
- threat
- 2.Qd4#
- 1...Rxd2
- 2.Qxd2#
- 1...e5
- 2.Qf5#
- 1...Sf5
- 2.Qxf5#
- 1...Se6
- 2.Qd6#
- 1...Se8
- 2.Bf5#
- 2.Qf5#
- 1...Sb6
- 2.Sxb6#
- 2.Qc7#
- 1...Sc7
- 2.Sb6#
- 2.Qxc7#
- 1...e6!
- threat
- 1.Se4?
- threat
- 2.Sc5#
- 1...Ke6
- 2.Sf6#
- 1...Se6
- 2.Qd6#
- 1...e5
- 2.Qf5#
- 1...e6
- 2.Sf6#
- 1...Rc1!
- threat
- 1.Sb5?
- threat
- 2.Qd4#
- 1...Rxd2
- 2.Qxd2#
- 1...e5
- 2.Qf5#
- 1...Sf5
- 2.Qxf5#
- 1...Se6
- 2.Qd6#
- 1...Se8
- 2.Bf5#
- 2.Qf5#
- 1...Sb6
- 2.Qc7#
- 1...Sc7
- 2.Qxc7#
- 1...e6!
- threat
- 1.Sc8?
- threat
- 2.Qd4#
- 1...Rxd2
- 2.Qxd2#
- 1...e5
- 2.Qf5#
- 1...Sf5
- 2.Qxf5#
- 1...Se6
- 2.Qd6#
- 1...Se8
- 2.Bf5#
- 2.Qf5#
- 1...Sb6
- 2.Sxb6#
- 2.Qc7#
- 1...Sc7
- 2.Sb6#
- 2.Qxc7#
- 1...e6!
- threat
- 1.Bf5+?
- 1...Se6
- 2.Bxe6#
- 1...e6
- 2.Bxe6#
- 1...Sxf5!
- 1...Se6
- 1.Rxg7?
- threat
- 2.Bf5#
- 2.Be8#
- 1...Qxg7
- 2.Be8#
- 1...Rxg7
- 2.Be8#
- 1...Bxg7
- 2.Rxe7#
- 1...Qh6
- 2.Be8#
- 1...Qh7
- 2.Be8#
- 1...Sc7!
- threat
- 1.Sc4?
- Keys
- 1.Se8!
- threat
- 2.Qd4#
- 1...Rxd2
- 2.Qxd2#
- 1...Sxe8
- 2.Bf5#
- 1...e5
- 2.Qf5#
- 1...e6
- 2.Sf6#
- 1...Sf5
- 2.Qxf5#
- 1...Se6
- 2.Qd6#
- 1...Sb6
- 2.Qc7#
- 1...Sc7
- 2.Qxc7#
- threat
- 1.Se8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- S(f);N_GUARD,P_SPINP(e)::B(F)
- P(e);P_SPINS(f)::B(F)
- Tries
- Try
- S(E);
- Threat
- QAR(C)
- Vars
- R(a);OGATE,XP(A)::QAR(C),XR(a)
- P(e);N_GUARD,P_SPINS(f)::QAB(C)
- S(f);N_GUARD,P_SPINP(e)::QAB(C),XS(f)
- S(f);P_SPINP(e)::QAR1(C)
- Refutation
- P(e);P_SPINS(f)
- Try
- S(E);
- Threat
- S(E)
- Vars
- K(d);S_FLIGHT::R(B)+S(E)
- S(f);P_SPINP(e)::QAR1(C)
- P(e);N_GUARD,P_SPINS(f)::QAB(C)
- P(e);N_GUARD,P_SPINS(f)::S(E)
- Refutation
- R(a);
- Try
- S(E);
- Threat
- QAR(C)
- Vars
- R(a);OGATE,XP(A)::QAR(C),XR(a)
- P(e);N_GUARD,P_SPINS(f)::QAB(C)
- S(f);N_GUARD,P_SPINP(e)::QAB(C),XS(f)
- S(f);P_SPINP(e)::QAR1(C)
- S(g);N_GUARD::QAR1(C)
- S(g);N_GUARD::QAR1(C),XS(g)
- Refutation
- P(e);P_SPINS(f)
- Try
- S(E);
- Threat
- QAR(C)
- Vars
- R(a);OGATE,XP(A)::QAR(C),XR(a)
- P(e);N_GUARD,P_SPINS(f)::QAB(C)
- S(f);N_GUARD,P_SPINP(e)::QAB(C),XS(f)
- S(f);P_SPINP(e)::QAR1(C)
- Refutation
- P(e);P_SPINS(f)
- Try
- B(F);CHECK
- Vars
- S(f);N_GUARD,P_SPINP(e),P_SPINS(f)::B(F),XS(f)
- P(e);P_SPINP(e),P_SPINS(f)::B(F),XP(e)
- Refutation
- S(f);P_SPINP(e),XB(F)
- Try
- R(H);P_PINP(e),XS(f)
- Threat
- DUALS(2)
- Vars
- Q(j);N_SPINP(e),XR(H)::B(F)
- R(i);N_SPINP(e),XR(H)::B(F)
- B(h);N_GUARD,N_SPINP(e),XR(H)::R1(B),XP(e)
- Q(j);::B(F)
- Refutation
- S(g);
- Try
- Actual
- S(E);
- Threat
- QAR(C)
- Vars
- R(a);OGATE,XP(A)::QAR(C),XR(a)
- S(f);N_GUARD,P_SPINP(e),SBLOCK,XS(E)::B(F)
- P(e);N_GUARD,P_SPINS(f)::QAB(C)
- P(e);N_GUARD,P_SPINS(f)::S(E)
- S(f);N_GUARD,P_SPINP(e)::QAB(C),XS(f)
- S(f);P_SPINP(e)::QAR1(C)
- S(g);N_GUARD::QAR1(C)
- S(g);N_GUARD::QAR1(C),XS(g)
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).