MESON Chess Problem Database
Problem Display
PID: 66604 (8/p7/Kp1Q4/p5p1/N1kn1nR1/R7/8/b2B4 w - - 0 1)
Neumann, Itzhak
1st Prize, American Chess Bulletin, 1959
#2
6 + 8
| 5828 | My Selected Chess Problems (Neumann) | 1968 |
SOLUTION
- SOUND
- Sets
- 1...Bb2
- 2.Sxb2#
- 1...Bc3
- 2.Rxc3#
- 1...Sc2
- 2.Be2#
- 1...Sde2
- 2.Bxe2#
- 2.Bb3#
- 1...Sb3
- 2.Be2#
- 2.Bxb3#
- 1...Sf3
- 2.Be2#
- 2.Bb3#
- 1...Sb5
- 2.Be2#
- 2.Bb3#
- 1...Sf5
- 2.Be2#
- 2.Bb3#
- 1...Sc6
- 2.Be2#
- 2.Bb3#
- 1...Sde6
- 2.Be2#
- 2.Bb3#
- 1...Sfe2
- 2.Bxe2#
- 1...Sg2
- 2.Be2#
- 1...Sd3
- 2.Bb3#
- 1...Sh3
- 2.Be2#
- 1...Sd5
- 2.Be2#
- 1...Sh5
- 2.Be2#
- 1...Sfe6
- 2.Be2#
- 1...Sg6
- 2.Be2#
- 1...b5
- 2.Qc5#
- 1...Bb2
- Tries
- 1.Bc2?
- 1...Bb2
- 2.Sxb2#
- 1...Bc3
- 2.Rxc3#
- 1...Sde2
- 2.Bb3#
- 2.Bd3#
- 1...Sb3
- 2.Bxb3#
- 2.Bd3#
- 1...Sf3
- 2.Bb3#
- 2.Bd3#
- 1...Sb5
- 2.Bb3#
- 2.Bd3#
- 1...Sf5
- 2.Bb3#
- 2.Bd3#
- 1...Sc6
- 2.Bb3#
- 2.Bd3#
- 1...Sde6
- 2.Bb3#
- 2.Bd3#
- 1...Sfe2
- 2.Bd3#
- 1...Sg2
- 2.Bd3#
- 1...Sd3
- 2.Bb3#
- 2.Bxd3#
- 1...Sh3
- 2.Bd3#
- 1...Sd5
- 2.Bd3#
- 1...Sh5
- 2.Bd3#
- 1...Sfe6
- 2.Bd3#
- 1...Sg6
- 2.Bd3#
- 1...b5
- 2.Qc5#
- 1...Sxc2!
- 1...Bb2
- 1.Bf3?
- 1...Bc3
- 2.Rxc3#
- 1...Bb2
- 2.Sxb2#
- 1...Sc2
- 2.Be2#
- 1...Sde2
- 2.Bxe2#
- 1...Sb3
- 2.Be2#
- 1...Sb5
- 2.Be2#
- 1...Sf5
- 2.Be2#
- 1...Sc6
- 2.Be2#
- 1...Sde6
- 2.Be2#
- 1...Sfe2
- 2.Bxe2#
- 2.Bd5#
- 1...Sg2
- 2.Be2#
- 2.Bd5#
- 1...Sd3
- 2.Bd5#
- 1...Sh3
- 2.Be2#
- 2.Bd5#
- 1...Sd5
- 2.Be2#
- 2.Bxd5#
- 1...Sh5
- 2.Be2#
- 2.Bd5#
- 1...Sfe6
- 2.Be2#
- 2.Bd5#
- 1...Sg6
- 2.Be2#
- 2.Bd5#
- 1...b5
- 2.Qc5#
- 1...Sxf3!
- 1...Bc3
- 1.Re3?
- 1...Bb2
- 2.Sxb2#
- 1...Bc3
- 2.Rxc3#
- 1...Sc2
- 2.Be2#
- 1...Sde2
- 2.Bxe2#
- 2.Bb3#
- 1...Sb3
- 2.Be2#
- 2.Bxb3#
- 1...Sf3
- 2.Be2#
- 2.Bb3#
- 1...Sb5
- 2.Be2#
- 2.Bb3#
- 1...Sf5
- 2.Be2#
- 2.Bb3#
- 1...Sc6
- 2.Be2#
- 2.Bb3#
- 1...Sde6
- 2.Be2#
- 2.Bb3#
- 1...Sfe2
- 2.Bxe2#
- 2.Bb3#
- 1...Sg2
- 2.Be2#
- 2.Bb3#
- 1...Sh3
- 2.Be2#
- 2.Bb3#
- 1...Sd5
- 2.Be2#
- 2.Bb3#
- 1...Sh5
- 2.Be2#
- 2.Bb3#
- 1...Sfe6
- 2.Be2#
- 2.Bb3#
- 1...Sg6
- 2.Be2#
- 2.Bb3#
- 1...b5
- 2.Qc5#
- 1...Sd3!
- 1...Bb2
- 1.Bc2?
- Keys
- 1.Rb3!
- 1...Sxb3
- 2.Be2#
- 1...Bc3
- 2.Rxc3#
- 1...Sc2
- 2.Qd3#
- 1...Bb2
- 2.Sxb2#
- 1...Sde2
- 2.Qd3#
- 1...Sf3
- 2.Qd3#
- 1...Sb5
- 2.Qd3#
- 1...Sf5
- 2.Qd3#
- 1...Sc6
- 2.Qd3#
- 1...Sde6
- 2.Qd3#
- 1...Sfe2
- 2.Qc6#
- 2.Qe6#
- 1...Sg2
- 2.Qc6#
- 2.Qe6#
- 1...Sd3
- 2.Qe6#
- 1...Sh3
- 2.Qc6#
- 2.Qe6#
- 1...Sd5
- 2.Qc6#
- 1...Sh5
- 2.Qc6#
- 2.Qe6#
- 1...Sfe6
- 2.Qxe6#
- 1...Sg6
- 2.Qc6#
- 2.Qe6#
- 1...b5
- 2.Qc5#
- 1...Sxb3
- 1.Rb3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 4
- ADDED MATES = 7
- REMOVED MATES = 5
- Sets
- B(a);N_GUARD::S(C),XB(a)
- B(a);N_GUARD::R1(B),XB(a)
- S(c);N_GUARD,P_SPINS(d)::B(A)
- S(d);N_GUARD,P_SPINS(c)::B(A),XS(d)
- S(d);N_GUARD,P_SPINS(c)::B(A)
- S(d);P_SPINS(c),SBLOCK::B(A)
- P(g);N_GUARD::QAR1(F)
- Tries
- Try
- B(A);
- Vars
- B(a);N_GUARD::S(C),XB(a)
- B(a);N_GUARD::R1(B),XB(a)
- S(d);N_GUARD,P_SPINS(c)::B(A)
- P(g);N_GUARD::QAR1(F)
- Refutation
- S(c);P_SPINS(d),XB(A)
- Try
- B(A);
- Vars
- B(a);N_GUARD::R1(B),XB(a)
- B(a);N_GUARD::S(C),XB(a)
- S(c);N_GUARD,P_SPINS(d)::B(A)
- S(c);N_GUARD,P_SPINS(d)::B(A),XS(c)
- S(d);N_GUARD,P_SPINS(c)::B(A)
- P(g);N_GUARD::QAR1(F)
- Refutation
- S(c);P_SPINS(d),XB(A)
- Try
- R(B);
- Vars
- B(a);N_GUARD::S(C),XB(a)
- B(a);N_GUARD::R1(B),XB(a)
- S(c);N_GUARD,P_SPINS(d)::B(A)
- P(g);N_GUARD::QAR1(F)
- Refutation
- S(d);P_SPINS(c)
- Try
- Actual
- R(B);
- Vars
- S(c);N_GUARD,P_SPINS(d),SBLOCK,XR(B)::B(A)
- B(a);N_GUARD::R1(B),XB(a)
- S(c);OGATE,P_SPINS(d)::QAB1(F)
- B(a);N_GUARD::S(C),XB(a)
- S(d);N_GUARD,P_SPINS(c)::QAB(F)
- S(d);P_SPINS(c)::QAR2(F)
- S(d);N_GUARD,P_SPINS(c)::QAB(F),XS(d)
- P(g);N_GUARD::QAR1(F)
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).