MESON Chess Problem Database
Problem Display
PID: 69999 (1n2Q3/8/3P4/2Pk1p2/Np2RP1p/4Pn1B/2P5/7K w - - 0 1)
Turiev, S
Shakhmaty v SSSR, 1962
#2
10 + 6
| 56 | The Problemist | 2006 |
| 5454 | Near Snap | 2015 |
SOLUTION
- SOUND
- Sets
- 1...Se1
- 2.Rd4#
- 1...Sg1
- 2.Rd4#
- 1...Sd2
- 2.Rd4#
- 1...Sh2
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Se5
- 2.Rd4#
- 1...Sg5
- 2.Rd4#
- 1...Sa6
- 2.Qa8#
- 1...Sc6
- 2.Qe6#
- 1...Sd7
- 2.Qa8#
- 1...b3
- 2.c4#
- 1...fxe4
- 2.Be6#
- 1...Se1
- Tries
- 1.Kg2?
- 1...fxe4
- 2.Be6#
- 1...Sd4
- 2.Rxd4#
- 1...Se5
- 2.Rd4#
- 1...Sd7
- 2.Qa8#
- 1...Sg1
- 2.Rd4#
- 1...Sd2
- 2.Rd4#
- 1...Sh2
- 2.Rd4#
- 1...Sg5
- 2.Rd4#
- 1...Sa6
- 2.Qa8#
- 1...Sc6
- 2.Qe6#
- 1...b3
- 2.c4#
- 1...Se1+!
- 1...fxe4
- 1.Bf1?
- threat
- 2.Bc4#
- 1...Se5
- 2.Rd4#
- 2.Rxe5#
- 1...Sd7
- 2.Qa8#
- 1...Sd2
- 2.Rd4#
- 2.Re5#
- 1...Sd4
- 2.Rxd4#
- 2.Re5#
- 1...fxe4!
- threat
- 1.Bg2?
- threat
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Sd7
- 2.Qa8#
- 1...Sc6
- 2.Qe6#
- 1...fxe4!
- threat
- 1.Bxf5?
- 1...Sd4
- 2.Rxd4#
- 1...Sd7
- 2.Qa8#
- 1...Se1
- 2.Rd4#
- 1...Sg1
- 2.Rd4#
- 1...Sd2
- 2.Rd4#
- 1...Sh2
- 2.Rd4#
- 1...Se5
- 2.Rd4#
- 1...Sg5
- 2.Rd4#
- 1...Sa6
- 2.Qa8#
- 1...Sc6
- 2.Qf7#
- 2.Qe6#
- 2.Qg8#
- 1...b3
- 2.c4#
- 1...h3!
- 1...Sd4
- 1.Rxb4?
- threat
- 2.c4#
- 1...Sd2
- 2.Rd4#
- 1...Se5
- 2.Rd4#
- 1...Sd7!
- threat
- 1.Re5+?
- 1...Kc4
- 2.Bf1#
- 1...Sxe5!
- 1...Kc4
- 1.Qc8?
- 1...fxe4
- 2.Sb6#
- 2.Be6#
- 1...Sd4
- 2.Rxd4#
- 1...Se1
- 2.Rd4#
- 1...Sg1
- 2.Rd4#
- 1...Sd2
- 2.Rd4#
- 1...Sh2
- 2.Rd4#
- 1...Se5
- 2.Rd4#
- 1...Sg5
- 2.Rd4#
- 1...Sa6
- 2.Qb7#
- 2.Qa8#
- 1...Sc6
- 2.Qe6#
- 1...Sd7
- 2.Qb7#
- 2.Qa8#
- 1...b3
- 2.Sc3#
- 1...Kxe4!
- 1...fxe4
- 1.c3?
- threat
- 2.c4#
- 1...fxe4
- 2.Be6#
- 1...Sd4
- 2.Rxd4#
- 1...Se5
- 2.Rd4#
- 1...Sd7
- 2.Qa8#
- 1...Sd2
- 2.Rd4#
- 1...bxc3!
- threat
- 1.Kg2?
- Keys
- 1.Qb5!
- 1...Kxe4
- 2.Qd3#
- 1...fxe4
- 2.Sb6#
- 1...Se5
- 2.Rxe5#
- 1...Se1
- 2.Re5#
- 1...Sg1
- 2.Re5#
- 1...Sd2
- 2.Re5#
- 1...Sh2
- 2.Re5#
- 1...Sd4
- 2.Re5#
- 1...Sg5
- 2.Re5#
- 1...Sa6
- 2.Qb7#
- 1...Sc6
- 2.Qc4#
- 1...Sd7
- 2.Qb7#
- 1...b3
- 2.Sc3#
- 1...Kxe4
- 1.Qb5!
This anticipates 149651(1991)
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 12
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::R1(F)
- S(a);N_GUARD::R1(F),XS(a)
- S(f);OGATE::QAB(J)
- S(f);SBLOCK::QAB1(J)
- P(b);N_GUARD::P(B)
- P(e);OGATE,SBLOCK,XR(F)::B(D)
- Tries
- Try
- K(A);S_FLIGHT
- Vars
- P(e);OGATE,SBLOCK,XR(F)::B(D)
- S(a);N_GUARD::R1(F),XS(a)
- S(a);N_GUARD::R1(F)
- S(f);OGATE::QAB(J)
- S(f);SBLOCK::QAB1(J)
- P(b);N_GUARD::P(B)
- Refutation
- S(a);CHECK
- Try
- B(D);
- Threat
- B(D)
- Vars
- S(f);OGATE::QAB(J)
- Refutation
- P(e);XR(F)
- Try
- B(D);
- Threat
- R1(F)
- Vars
- S(a);::B(D)+R(F),DCHECK,XS(a)
- S(f);OGATE::QAB(J)
- S(f);SBLOCK::QAB1(J)
- Refutation
- P(e);XR(F)
- Try
- B(D);XP(e)
- Vars
- S(a);N_GUARD::R1(F),XS(a)
- S(f);OGATE::QAB(J)
- S(a);N_GUARD::R1(F)
- P(b);N_GUARD::P(B)
- Refutation
- P(c);
- Try
- R(F);XP(b)
- Threat
- P(B)
- Vars
- S(a);N_GUARD::R1(F)
- Refutation
- S(f);
- Try
- R(F);CHECK
- Vars
- K(d);S_FLIGHT::B(D)
- Refutation
- S(a);XR(F)
- Try
- Q(J);
- Vars
- S(a);N_GUARD::R1(F),XS(a)
- S(a);N_GUARD::R1(F)
- S(f);SBLOCK::QAB1(J)
- P(b);N_GUARD::S(E)
- Refutation
- K(d);S_FLIGHT,XR(F)
- Try
- P(B);
- Threat
- P(B)
- Vars
- P(e);OGATE,SBLOCK,XR(F)::B(D)
- S(a);N_GUARD::R1(F),XS(a)
- S(a);N_GUARD::R1(F)
- S(f);OGATE::QAB(J)
- Refutation
- P(b);XP(B)
- Try
- Actual
- Q(J);
- Vars
- K(d);S_FLIGHT,XR(F)::QAB1(J)
- P(e);SBLOCK,XR(F)::S(E)
- S(a);N_GUARD::R1(F),XS(a)
- S(a);N_GUARD::R1(F)
- S(f);N_GUARD::QAB(J)
- S(f);SBLOCK::QAB1(J)
- P(b);N_GUARD::S(E)
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).