MESON Chess Problem Database
Problem Display
PID: 262110 (8/8/2p5/2R5/4k3/1NP1N1K1/2P1b1P1/4R3 w - - 0 1)
Lipton, Michael
Correspondence Chess, 1957
#2
8 + 3
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
| 5454 | Near Snap | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Kxe3
- 2.Re5#
- 1...Bd1
- 2.Sd2#
- 2.Sxd1#
- 1...Bf1
- 2.Sd2#
- 2.Sxf1#
- 1...Bd3
- 2.Sd2#
- 1...Bf3
- 2.Sd2#
- 2.gxf3#
- 1...Bc4
- 2.Sd2#
- 2.Sxc4#
- 1...Bg4
- 2.Sd2#
- 2.Sxg4#
- 1...Bb5
- 2.Sd2#
- 2.Sc4#
- 1...Bh5
- 2.Sd2#
- 2.Sg4#
- 1...Ba6
- 2.Sd2#
- 2.Sc4#
- 1...Kxe3
- Tries
- 1.Sd4?
- 1...Kxe3
- 2.Rxe2#
- 1...Bd1
- 2.Sxd1#
- 1...Bf1
- 2.Sxf1#
- 1...Bf3
- 2.gxf3#
- 1...Bc4
- 2.Sxc4#
- 1...Bg4
- 2.Sxg4#
- 1...Bb5
- 2.Sc4#
- 1...Bh5
- 2.Sg4#
- 1...Ba6
- 2.Sc4#
- 1...Bd3!
- 1...Kxe3
- 1.Rf5?
- 1...Kxe3
- 2.Re5#
- 1...Bd3
- 2.Sd2#
- 2.Sc5#
- 1...Bd1
- 2.Sd2#
- 2.Sc5#
- 1...Bf1
- 2.Sd2#
- 2.Sc5#
- 1...Bf3
- 2.Sd2#
- 2.Sc5#
- 2.gxf3#
- 1...Bc4
- 2.Sd2#
- 2.Sc5#
- 1...Bg4
- 2.Sd2#
- 2.Sc5#
- 1...Bb5
- 2.Sd2#
- 2.Sc5#
- 1...Bh5
- 2.Sd2#
- 2.Sc5#
- 1...Ba6
- 2.Sd2#
- 2.Sc5#
- 1...c5!
- 1...Kxe3
- 1.Rg5?
- 1...Kxe3
- 2.Re5#
- 1...Bd3
- 2.Sd2#
- 2.Sc5#
- 1...Bd1
- 2.Sd2#
- 2.Sc5#
- 2.Sxd1#
- 1...Bf1
- 2.Sd2#
- 2.Sc5#
- 2.Sxf1#
- 1...Bf3
- 2.Sd2#
- 2.Sc5#
- 2.gxf3#
- 1...Bc4
- 2.Sd2#
- 2.Sc5#
- 2.Sxc4#
- 1...Bg4
- 2.Sd2#
- 2.Sc5#
- 2.Sxg4#
- 1...Bb5
- 2.Sd2#
- 2.Sc5#
- 2.Sc4#
- 1...Bh5
- 2.Sd2#
- 2.Sc5#
- 2.Sg4#
- 1...Ba6
- 2.Sd2#
- 2.Sc5#
- 2.Sc4#
- 1...c5!
- 1...Kxe3
- 1.c4?
- 1...Kxe3
- 2.Re5#
- 1...Bxc4
- 2.Sxc4#
- 1...Bd1
- 2.Sxd1#
- 1...Bf1
- 2.Sxf1#
- 1...Bf3
- 2.gxf3#
- 1...Bg4
- 2.Sxg4#
- 1...Bh5
- 2.Sg4#
- 1...Bd3!
- 1...Kxe3
- 1.Sd4?
- Keys
- 1.Sc1!
- 1...Kxe3
- 2.Rxe2#
- 1...Bd1
- 2.Sxd1#
- 1...Bf1
- 2.Sxf1#
- 1...Bd3
- 2.cxd3#
- 1...Bf3
- 2.gxf3#
- 1...Bc4
- 2.Sxc4#
- 1...Bg4
- 2.Sxg4#
- 1...Bb5
- 2.Sc4#
- 1...Bh5
- 2.Sg4#
- 1...Ba6
- 2.Sc4#
- 1...Kxe3
- 1.Sc1!
Anticipated by 64573(1915)
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 8
- REMOVED MATES = 0
- Sets
- K(b);N_GUARD,P-FLIGHT,P_SPINB(a),XS(F)::R(H)
- B(a);::S(D)
- Tries
- Try
- S(D);
- Vars
- K(b);OGATEB,P-FLIGHT,P_SPINB(a),XS(F)::R1(A),XB(a)
- B(a);::R(A)+S(F),XB(a)
- B(a);OGATE::P(C),XB(a)
- B(a);::R(A)+S(F)
- Refutation
- B(a);
- Try
- R(H);
- Vars
- K(b);N_GUARD,P-FLIGHT,P_SPINB(a),XS(F)::R(H)
- Refutation
- P(c);
- Try
- R(H);
- Vars
- K(b);N_GUARD,P-FLIGHT,P_SPINB(a),XS(F)::R(H)
- Refutation
- P(c);
- Try
- P(E);
- Vars
- K(b);N_GUARD,P-FLIGHT,P_SPINB(a),XS(F)::R(H)
- B(a);XP(E)::R(A)+S(F),XB(a)
- B(a);::R(A)+S(F),XB(a)
- B(a);OGATE::P(C),XB(a)
- B(a);::R(A)+S(F)
- Refutation
- B(a);
- Try
- Actual
- S(D);
- Vars
- K(b);OGATEB,P-FLIGHT,P_SPINB(a),XS(F)::R1(A),XB(a)
- B(a);::R(A)+S(F),XB(a)
- B(a);OGATE::P(B),XB(a)
- B(a);OGATE::P(C),XB(a)
- B(a);::R(A)+S(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).