MESON Chess Problem Database
Problem Display
PID: 87696 (8/8/3Kp3/3nP1p1/6B1/Nn1k4/3PN1p1/3R2Q1 w - - 0 1)
Neuhaus, Carl Eugene
American Chess Problemist, 1950
#2
8 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ke4
- 2.d3#
- 1...Sa1
- 2.Qd4#
- 1...Sc1
- 2.Qd4#
- 1...Sxd2
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 1...Sc5
- 2.Qd4#
- 1...Sc3
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sb4
- 2.Qe3#
- 1...Sf4
- 2.Qe3#
- 1...Sb6
- 2.Qe3#
- 1...Sf6
- 2.Qe3#
- 1...Sc7
- 2.Qe3#
- 1...Se7
- 2.Qe3#
- 1...Ke4
- Tries
- 1.Bf3?
- 1...Sxd2
- 2.Qd4#
- 1...Sc1
- 2.Sxc1#
- 2.Qd4#
- 1...Sa1
- 2.Sc1#
- 2.Qd4#
- 1...Sd4
- 2.Sc1#
- 2.Qxd4#
- 1...Sa5
- 2.Sc1#
- 2.Qd4#
- 1...Sc5
- 2.Sc1#
- 2.Qd4#
- 1...Sc3
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sb4
- 2.Qe3#
- 1...Sf4
- 2.Qe3#
- 1...Sb6
- 2.Qe3#
- 1...Sf6
- 2.Qe3#
- 1...Sc7
- 2.Qe3#
- 1...Se7
- 2.Qe3#
- 1...g4!
- 1...Sxd2
- 1.Rb1?
- 1...Kxd2
- 2.Rd1#
- 1...Sxd2
- 2.Qd4#
- 1...Sc1
- 2.Qd4#
- 1...Sa1
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 1...Sc5
- 2.Qd4#
- 1...Sc3
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sb4
- 2.Qe3#
- 1...Sf4
- 2.Qe3#
- 1...Sb6
- 2.Qe3#
- 1...Sf6
- 2.Qe3#
- 1...Sc7
- 2.Qe3#
- 1...Se7
- 2.Qe3#
- 1...Ke4!
- 1...Kxd2
- 1.Rc1?
- 1...Kxd2
- 2.Rd1#
- 1...Sxc1
- 2.Qd4#
- 1...Sxd2
- 2.Qd4#
- 1...Sa1
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 1...Sc5
- 2.Qd4#
- 1...Sc3
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sb4
- 2.Qe3#
- 1...Sf4
- 2.Qe3#
- 1...Sb6
- 2.Qe3#
- 1...Sf6
- 2.Qe3#
- 1...Sc7
- 2.Qe3#
- 1...Se7
- 2.Qe3#
- 1...Ke4!
- 1...Kxd2
- 1.Re1?
- 1...Kxd2
- 2.Rd1#
- 1...Sxd2
- 2.Qd4#
- 1...Sc1
- 2.Qd4#
- 1...Sa1
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 1...Sc5
- 2.Qd4#
- 1...Sc3
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sb4
- 2.Qe3#
- 1...Sf4
- 2.Qe3#
- 1...Sb6
- 2.Qe3#
- 1...Sf6
- 2.Qe3#
- 1...Sc7
- 2.Qe3#
- 1...Se7
- 2.Qe3#
- 1...Ke4!
- 1...Kxd2
- 1.Qc5?
- threat
- 2.Qc2#
- 2.Qc4#
- 1...Ke4
- 2.Qc2#
- 2.d3#
- 1...Sxd2
- 2.Qd4#
- 1...Sa1
- 2.Qd4#
- 2.Qc4#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 2.Qc2#
- 1...Sc3
- 2.Qe3#
- 2.Qc4#
- 1...Se3
- 2.Qxe3#
- 1...Sb4
- 2.Qe3#
- 2.Qc4#
- 1...Sb6
- 2.Qe3#
- 2.Qc2#
- 1...Sxc5!
- threat
- 1.Qa7?
- threat
- 2.Qh7#
- 1...Ke4
- 2.Qh7#
- 2.d3#
- 1...Sxd2
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sc3
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sf4
- 2.Qe3#
- 1...Sf6
- 2.Qe3#
- 1...Sc7
- 2.Qe3#
- 1...Se7
- 2.Qe3#
- 1...Sc5!
- threat
- 1.Bf3?
- Keys
- 1.Ra1!
- 1...Kxd2
- 2.Rd1#
- 1...Ke4
- 2.Qb1#
- 1...Sxa1
- 2.Qd4#
- 1...Sxd2
- 2.Qd4#
- 1...Sc1
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 1...Sc5
- 2.Qd4#
- 1...Sc3
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sb4
- 2.Qe3#
- 1...Sf4
- 2.Qe3#
- 1...Sb6
- 2.Qe3#
- 1...Sf6
- 2.Qe3#
- 1...Sc7
- 2.Qe3#
- 1...Se7
- 2.Qe3#
- 1...Kxd2
- 1.Ra1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(c);OGATE,S_FLIGHT::P(C)
- S(b);N_GUARD::QAR1(B)
- S(b);N_GUARD,P_SPINS(b),XP(C)::QAR1(B)
- S(b);N_GUARD::QAR1(B),XS(b)
- S(d);N_GUARD::QAR1(B)
- S(d);N_GUARD::QAR1(B),XS(d)
- Tries
- Try
- B(F);
- Vars
- S(b);N_GUARD,P_SPINS(b),XP(C)::QAR1(B)
- S(d);N_GUARD::QAR1(B)
- S(d);N_GUARD::QAR1(B),XS(d)
- Refutation
- P(e);
- Try
- R(A);
- Vars
- K(c);OGATEB,P-FLIGHT,XP(C)::R1(A)
- S(b);N_GUARD,SBLOCK,XP(C)::QAR1(B)
- S(b);N_GUARD::QAR1(B)
- S(b);N_GUARD::QAR1(B),XS(b)
- S(d);N_GUARD::QAR1(B)
- S(d);N_GUARD::QAR1(B),XS(d)
- Refutation
- K(c);S_FLIGHT
- Try
- R(A);
- Vars
- K(c);OGATEB,P-FLIGHT,XP(C)::R1(A)
- S(b);N_GUARD,XR(A)::QAR1(B)
- S(b);N_GUARD,SBLOCK,XP(C)::QAR1(B)
- S(b);N_GUARD::QAR1(B)
- S(b);N_GUARD::QAR1(B),XS(b)
- S(d);N_GUARD::QAR1(B)
- S(d);N_GUARD::QAR1(B),XS(d)
- Refutation
- K(c);S_FLIGHT
- Try
- R(A);
- Vars
- K(c);OGATEB,P-FLIGHT,XP(C)::R1(A)
- S(b);N_GUARD,SBLOCK,XP(C)::QAR1(B)
- S(b);N_GUARD::QAR1(B)
- S(b);N_GUARD::QAR1(B),XS(b)
- S(d);N_GUARD::QAR1(B)
- S(d);N_GUARD::QAR1(B),XS(d)
- Refutation
- K(c);S_FLIGHT
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- S(b);N_GUARD,P_SPINS(b),XP(C)::QAR1(B)
- S(b);N_GUARD::QAR1(B),XS(b)
- S(d);N_GUARD::QAR1(B),XS(d)
- Refutation
- S(b);XQ(B)
- Try
- Q(B);
- Threat
- QAB(B)
- Vars
- S(b);N_GUARD,P_SPINS(b),XP(C)::QAR1(B)
- S(b);N_GUARD::QAR1(B),XS(b)
- S(d);N_GUARD::QAR1(B)
- S(d);N_GUARD::QAR1(B),XS(d)
- Refutation
- S(b);
- Try
- Actual
- R(A);
- Vars
- K(c);OGATEB,P-FLIGHT,XP(C)::R1(A)
- K(c);S_FLIGHT::QAB(B)
- S(b);N_GUARD,XR(A)::QAR1(B)
- S(b);N_GUARD,SBLOCK,XP(C)::QAR1(B)
- S(b);N_GUARD::QAR1(B)
- S(b);N_GUARD::QAR1(B),XS(b)
- S(d);N_GUARD::QAR1(B)
- S(d);N_GUARD::QAR1(B),XS(d)
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).