MESON Chess Problem Database
Problem Display
PID: 262409 (4R3/2pK1Q1p/r1p4p/5N1B/RB1n1k2/5N2/4P3/3r2b1 w - - 0 1)
Lipton, Michael
2nd Comm., Al Hamishmar, 1955
(First published on Fri Nov 18 1955)
#2
9 + 9
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Bh2
- 2.e3#
- 1...Sc2+
- 2.Bd2#
- 2.Bd6#
- 1...Sxe2+
- 2.Bd2#
- 2.Bd6#
- 1...Sb3+
- 2.Bd2#
- 2.Bd6#
- 1...Sxf3+
- 2.Bd2#
- 1...Sb5+
- 2.Bd2#
- 2.Bd6#
- 1...Sxf5+
- 2.Bd6#
- 1...Se6+
- 2.Bd2#
- 2.Bd6#
- 1...Bh2
- Tries
- 1.Se3+?
- 1...Sf5+
- 2.Bd6#
- 1...Kg3!
- 1...Sf5+
- 1.Sg3+?
- 1...Sf5+
- 2.Bd6#
- 1...Kxg3!
- 1...Sf5+
- 1.S5h4+?
- 1...Sf5+
- 2.Bd6#
- 1...Kg3!
- 1...Sf5+
- 1.Sxh6+?
- 1...Sf5+
- 2.Bd6#
- 1...Kg3!
- 1...Sf5+
- 1.Sg7+?
- 1...Sf5+
- 2.Bd6#
- 1...Kg3!
- 1...Sf5+
- 1.Bd2+?
- 1...Be3
- 2.Bxe3#
- 2.Rxd4#
- 1...Rxd2!
- 1...Be3
- 1.Qd5?
- threat
- 2.Re4#
- 2.Qe4#
- 2.Qe5#
- 1...Sxe2
- 2.Bd2#
- 2.Bd6#
- 2.Re4#
- 1...Sxf3
- 2.Bd2#
- 1...Sxf5
- 2.Bd6#
- 1...Ra5
- 2.Re4#
- 2.Qe4#
- 1...Sc2
- 2.Bd2#
- 2.Bd6#
- 2.Re4#
- 1...Sb3
- 2.Bd2#
- 2.Bd6#
- 2.Re4#
- 1...Sb5
- 2.Bd2#
- 2.Bd6#
- 2.Re4#
- 1...Se6
- 2.Bd2#
- 2.Bd6#
- 1...cxd5!
- threat
- 1.Qe6?
- threat
- 2.Qe4#
- 2.Qe5#
- 1...Sc2+
- 2.Bd2#
- 2.Bd6#
- 1...Sxe2+
- 2.Bd2#
- 2.Bd6#
- 1...Sb3+
- 2.Bd2#
- 2.Bd6#
- 1...Sxf3+
- 2.Bd2#
- 1...Sb5+
- 2.Bd2#
- 2.Bd6#
- 1...Sxf5+
- 2.Bd6#
- 1...Ra5
- 2.Qe4#
- 1...Sxe6+!
- threat
- 1.Qg6?
- threat
- 2.Qg4#
- 1...Sc2+
- 2.Bd2#
- 2.Bd6#
- 1...Sxe2+
- 2.Bd2#
- 2.Bd6#
- 1...Sb3+
- 2.Bd2#
- 2.Bd6#
- 1...Sxf3+
- 2.Bd2#
- 2.Bd6#
- 1...Sb5+
- 2.Bd2#
- 2.Bd6#
- 1...Sxf5+
- 2.Bd2#
- 2.Bd6#
- 1...Se6+
- 2.Bd2#
- 2.Bd6#
- 1...hxg6!
- threat
- 1.Qf6?
- threat
- 2.Qe5#
- 1...Sc2+
- 2.Bd2#
- 2.Bd6#
- 1...Sxe2+
- 2.Bd2#
- 2.Bd6#
- 1...Sb3+
- 2.Bd2#
- 2.Bd6#
- 1...Sxf3+
- 2.Bd2#
- 2.Bd6#
- 1...Sb5+
- 2.Bd2#
- 2.Bd6#
- 1...Sxf5+
- 2.Bd6#
- 1...Se6+
- 2.Bd2#
- 2.Bd6#
- 1...Ra5!
- threat
- 1.Se3+?
- Keys
- 1.Rg8!
- threat
- 2.Rg4#
- 1...Sc2+
- 2.Bd2#
- 2.Bd6#
- 1...Sxe2+
- 2.Bd2#
- 2.Bd6#
- 1...Sb3+
- 2.Bd2#
- 2.Bd6#
- 1...Sxf3+
- 2.Bd6#
- 1...Sb5+
- 2.Bd2#
- 2.Bd6#
- 1...Sxf5+
- 2.Bd2#
- 1...Se6+
- 2.Bd2#
- 2.Bd6#
- 1...Ke4
- 2.Rg4#
- threat
- 1.Rg8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- B(b);N_GUARD::P(A)
- S(c);CHECK,XS(B)::R(C)+B(D),DCHECK
- S(c);CHECK,P_SPINS(c),XS(E)::R(C)+B(D),DCHECK
- Tries
- Try
- S(E);CHECK
- Vars
- S(c);CHECK,P_SPINS(c)::R(C)+B(D),DCHECK
- Refutation
- K(d);S_FLIGHT
- Try
- S(E);CHECK
- Vars
- S(c);CHECK,P_SPINS(c)::R(C)+B(D),DCHECK
- Refutation
- K(d);S_FLIGHT,XS(E)
- Try
- S(E);CHECK
- Vars
- S(c);CHECK,P_SPINS(c)::R(C)+B(D),DCHECK
- Refutation
- K(d);S_FLIGHT
- Try
- S(E);CHECK,XP(g)
- Vars
- S(c);CHECK,P_SPINS(c)::R(C)+B(D),DCHECK
- Refutation
- K(d);S_FLIGHT
- Try
- S(E);CHECK
- Vars
- S(c);CHECK,P_SPINS(c)::R(C)+B(D),DCHECK
- Refutation
- K(d);S_FLIGHT
- Try
- B(D);CHECK,P_PINS(c)
- Refutation
- R(a);XB(D)
- Try
- Q(H);
- Threat
- DUALS(3)
- Vars
- S(c);P_PINQ(H),XS(B)::R(C)+B(D),DCHECK
- S(c);P_PINQ(H),XS(E)::R(C)+B(D),DCHECK
- Refutation
- P(f);XQ(H)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- S(c);CHECK,XS(B)::R(C)+B(D),DCHECK
- S(c);CHECK,XS(E)::R(C)+B(D),DCHECK
- R(e);::QAR1(H)
- Refutation
- S(c);CHECK,XQ(H)
- Try
- Q(H);
- Threat
- QAR1(H)
- Refutation
- P(i);XQ(H)
- Try
- Q(H);
- Threat
- QAB1(H)
- Vars
- S(c);CHECK,P_SPINS(c),XS(E)::R(C)+B(D),DCHECK
- Refutation
- R(e);
- Try
- Actual
- R(I);
- Threat
- R1(I)
- Vars
- S(c);CHECK,XS(B)::R(C)+B(D),DCHECK
- S(c);CHECK,P_SPINS(c),XS(E)::R(C)+B(D),DCHECK
- K(d);P-FLIGHT::R(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).