MESON Chess Problem Database
Problem Display
PID: 9898 (2R1R1q1/2nNnp1b/3Q4/1r4r1/3B4/1P1k2p1/3P4/3K3B w - - 0 1)
Lipton, Michael
1st HM., Probleemblad, 1960
#2
9 + 9
| 3749 | FIDE Album (1959-1961) | 1966 |
| 5862 | An ABC of Chess Problems | 1970 |
| 4640 | Chess Wizardry: The New ABC of Chess Problems | 1996 |
SOLUTION
- SOUND
- Sets
- 1...Sa6
- 2.Rc3#
- 1...Se6
- 2.Rc3#
- 1...Sa8
- 2.Rc3#
- 1...Sxe8
- 2.Rc3#
- 1...Sf5
- 2.Be4#
- 1...Sc6
- 2.Re3#
- 1...Sg6
- 2.Be4#
- 2.Re3#
- 1...Sxc8
- 2.Re3#
- 1...Sa6
- Tries
- 1.Ba1+?
- 1...Rbd5
- 2.Sc5#
- 1...Rgd5
- 2.Se5#
- 1...Sed5
- 2.Re3#
- 1...Scd5!
- 1...Rbd5
- 1.Bg1+?
- 1...Rbd5
- 2.Sc5#
- 1...Rgd5
- 2.Se5#
- 1...Scd5
- 2.Rc3#
- 1...Sed5!
- 1...Rbd5
- 1.Bb2+?
- 1...Rbd5
- 2.Sc5#
- 1...Rgd5
- 2.Se5#
- 1...Sed5
- 2.Re3#
- 1...Scd5!
- 1...Rbd5
- 1.Bf2+?
- 1...Rbd5
- 2.Sc5#
- 1...Rgd5
- 2.Se5#
- 1...Scd5
- 2.Rc3#
- 1...Sed5!
- 1...Rbd5
- 1.Bc3+?
- 1...Rbd5
- 2.Sc5#
- 1...Rgd5
- 2.Se5#
- 1...Sed5
- 2.Re3#
- 1...Scd5!
- 1...Rbd5
- 1.Be3+?
- 1...Rbd5
- 2.Sc5#
- 1...Rgd5
- 2.Se5#
- 1...Scd5
- 2.Rc3#
- 1...Sed5!
- 1...Rbd5
- 1.Bc5+?
- 1...Rd5
- 2.Se5#
- 1...Sed5
- 2.Re3#
- 1...Scd5!
- 1...Rd5
- 1.Be5+?
- 1...Rd5
- 2.Sc5#
- 1...Scd5
- 2.Rc3#
- 1...Sed5!
- 1...Rd5
- 1.Bb6+?
- 1...Rgd5
- 2.Se5#
- 1...Scd5
- 2.Rc3#
- 1...Sed5
- 2.Re3#
- 1...Rbd5!
- 1...Rgd5
- 1.Bf6+?
- 1...Rbd5
- 2.Sc5#
- 1...Scd5
- 2.Rc3#
- 1...Sed5
- 2.Re3#
- 1...Rgd5!
- 1...Rbd5
- 1.Ba7+?
- 1...Rgd5
- 2.Se5#
- 1...Scd5
- 2.Rc3#
- 1...Sed5
- 2.Re3#
- 1...Rbd5!
- 1...Rgd5
- 1.Bh8+?
- 1...Rbd5
- 2.Sc5#
- 1...Scd5
- 2.Rc3#
- 1...Sed5
- 2.Re3#
- 1...Rgd5!
- 1...Rbd5
- 1.Qxg3+?
- 1...Kxd4
- 2.Qc3#
- 2.Qe3#
- 1...Rxg3!
- 1...Kxd4
- 1.Ba1+?
- Keys
- 1.Bg7+!
- 1...Rbd5
- 2.Sc5#
- 1...Rgd5
- 2.Qxg3#
- 1...Scd5
- 2.Rc3#
- 1...Sed5
- 2.Re3#
- 1...Rbd5
- 1.Bg7+!
FEATURES
- Static
- TYPE = CHECKING_KEY
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 7
- Sets
- S(e);OGATE::R1(H)
- S(e);OGATE,XR(I)::R1(H)
- S(f);S_CUTB(h)::B(B)
- S(f);OGATE::R1(I)
- S(f);OGATE,XR(H)::R1(I)
- Tries
- Try
- B(E);CHECK
- Vars
- R(c);P_SPINR(c)::S(G)
- R(d);P_SPINR(d)::S(G)
- S(f);OGATE,P_SPINS(f)::R1(I)
- Refutation
- S(e);P_SPINS(e)
- Try
- B(E);CHECK
- Vars
- R(c);P_SPINR(c)::S(G)
- R(d);P_SPINR(d)::S(G)
- S(e);OGATE,P_SPINS(e)::R1(H)
- Refutation
- S(f);P_SPINS(f)
- Try
- B(E);CHECK
- Vars
- R(c);P_SPINR(c)::S(G)
- R(d);P_SPINR(d)::S(G)
- S(f);OGATE,P_SPINS(f)::R1(I)
- Refutation
- S(e);P_SPINS(e)
- Try
- B(E);CHECK
- Vars
- R(c);P_SPINR(c)::S(G)
- R(d);P_SPINR(d)::S(G)
- S(e);OGATE,P_SPINS(e)::R1(H)
- Refutation
- S(f);P_SPINS(f)
- Try
- B(E);CHECK
- Vars
- R(c);P_SPINR(c)::S(G)
- R(d);P_SPINR(d)::S(G)
- S(f);OGATE,P_SPINS(f)::R1(I)
- Refutation
- S(e);P_SPINS(e)
- Try
- B(E);CHECK
- Vars
- R(c);P_SPINR(c)::S(G)
- R(d);P_SPINR(d)::S(G)
- S(e);OGATE,P_SPINS(e)::R1(H)
- Refutation
- S(f);P_SPINS(f)
- Try
- B(E);CHECK
- Vars
- R(d);P_SPINR(d)::S(G)
- S(f);OGATE,P_SPINS(f)::R1(I)
- Refutation
- S(e);P_SPINS(e)
- Try
- B(E);CHECK
- Vars
- R(c);P_SPINR(c)::S(G)
- S(e);OGATE,P_SPINS(e)::R1(H)
- Refutation
- S(f);P_SPINS(f)
- Try
- B(E);CHECK
- Vars
- R(d);P_SPINR(d)::S(G)
- S(e);OGATE,P_SPINS(e)::R1(H)
- S(f);OGATE,P_SPINS(f)::R1(I)
- Refutation
- R(c);P_SPINR(c)
- Try
- B(E);CHECK
- Vars
- R(c);P_SPINR(c)::S(G)
- S(e);OGATE,P_SPINS(e)::R1(H)
- S(f);OGATE,P_SPINS(f)::R1(I)
- Refutation
- R(d);P_SPINR(d)
- Try
- B(E);CHECK
- Vars
- R(d);P_SPINR(d)::S(G)
- S(e);OGATE,P_SPINS(e)::R1(H)
- S(f);OGATE,P_SPINS(f)::R1(I)
- Refutation
- R(c);P_SPINR(c)
- Try
- B(E);CHECK
- Vars
- R(c);P_SPINR(c)::S(G)
- S(e);OGATE,P_SPINS(e)::R1(H)
- S(f);OGATE,P_SPINS(f)::R1(I)
- Refutation
- R(d);P_SPINR(d)
- Try
- Q(F);CHECK,XP(b)
- Refutation
- R(d);XQ(F)
- Try
- Actual
- B(E);CHECK
- Vars
- R(c);P_SPINR(c)::S(G)
- R(d);N_GUARD,P_SPINR(d)::QAR(F),XP(b)
- S(e);OGATE,P_SPINS(e)::R1(H)
- S(f);OGATE,P_SPINS(f)::R1(I)
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).