MESON Chess Problem Database
Problem Display
PID: 21864 (8/8/8/6pp/3nQ1nk/8/5PPN/3K4 w - - 0 1)
Mendes de Moraes Filho, Feliciano
La Strategie, 1921
#2
5 + 5
| 3360 | Simple Two-move Themes | 1924 |
SOLUTION
- SOUND
- Sets
- 1...Sc2
- 2.Sf3#
- 1...Se2
- 2.Sf3#
- 1...Sb3
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sb5
- 2.Sf3#
- 1...Sf5
- 2.Sf3#
- 1...Sc6
- 2.Sf3#
- 1...Se6
- 2.Sf3#
- 1...Sc2
- Tries
- 1.Ke1?
- 1...Sf3+
- 2.Sxf3#
- 1...Se2
- 2.Sf3#
- 1...Sb3
- 2.Sf3#
- 1...Sb5
- 2.Sf3#
- 1...Sf5
- 2.Sf3#
- 1...Sc6
- 2.Sf3#
- 1...Se6
- 2.Sf3#
- 1...Sc2+!
- 1...Sf3+
- 1.Kd2?
- 1...Sf3+
- 2.Sxf3#
- 1...Sc2
- 2.Sf3#
- 1...Se2
- 2.Sf3#
- 1...Sb5
- 2.Sf3#
- 1...Sf5
- 2.Sf3#
- 1...Sc6
- 2.Sf3#
- 1...Se6
- 2.Sf3#
- 1...Sb3+!
- 1...Sf3+
- 1.Qf3?
- threat
- 2.Qg3#
- 2.Qh3#
- 1...Sxf2+
- 2.Qxf2#
- 1...Sxf3
- 2.Sxf3#
- 1...Se2
- 2.Qh3#
- 1...Sf5
- 2.Qh3#
- 1...Se3+!
- threat
- 1.Qf5?
- 1...Sxf2+
- 2.Qxf2#
- 1...Sxf5
- 2.Sf3#
- 1...Sxh2
- 2.Qh3#
- 2.g3#
- 1...Sc2
- 2.Sf3#
- 1...Se2
- 2.Sf3#
- 1...Sb3
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sb5
- 2.Sf3#
- 1...Sc6
- 2.Sf3#
- 1...Se6
- 2.Sf3#
- 1...Se5
- 2.Qh3#
- 2.g3#
- 1...Sf6
- 2.Qh3#
- 2.g3#
- 1...Sh6
- 2.Qh3#
- 2.g3#
- 1...Se3+!
- 1...Sxf2+
- 1.Qe3?
- threat
- 2.Qg3#
- 2.Qh3#
- 1...Sxf2+
- 2.Qxf2#
- 1...Se2
- 2.Sf3#
- 2.Qh3#
- 1...Sf3
- 2.Sxf3#
- 1...Sf5
- 2.Sf3#
- 2.Qh3#
- 1...Sxe3+!
- threat
- 1.Qf4?
- threat
- 2.Qg3#
- 1...Se2
- 2.Sf3#
- 1...Sf5
- 2.Sf3#
- 1...gxf4!
- threat
- 1.Ke1?
- Keys
- 1.Qe1!
- 1...Sxf2+
- 2.Qxf2#
- 1...Se3+
- 2.fxe3#
- 1...Sxh2
- 2.f3#
- 1...Sc2
- 2.Sf3#
- 1...Se2
- 2.Sf3#
- 1...Sb3
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sb5
- 2.Sf3#
- 1...Sf5
- 2.Sf3#
- 1...Sc6
- 2.Sf3#
- 1...Se6
- 2.Sf3#
- 1...Se5
- 2.f3#
- 2.f4#
- 1...Sf6
- 2.f3#
- 2.f4#
- 1...Sh6
- 2.f3#
- 2.f4#
- 1...Sxf2+
- 1.Qe1!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- S(a);CHECK,N_GUARD::S(D),XS(a)
- S(a);N_GUARD::S(D)
- Refutation
- S(a);CHECK
- Try
- K(A);P-FLIGHT
- Vars
- S(a);CHECK,N_GUARD::S(D),XS(a)
- S(a);N_GUARD::S(D)
- Refutation
- S(a);CHECK
- Try
- Q(E);N_PINS(b)
- Threat
- DUALS(2)
- Vars
- S(b);CHECK,OGATE,XP(B)::QAB(E),XS(b)
- S(a);XQ(E)::S(D),XS(a)
- S(a);::QAR1(E)
- Refutation
- S(b);CHECK
- Try
- Q(E);N_PINS(b)
- Vars
- S(b);CHECK,OGATE,XP(B)::QAB(E),XS(b)
- S(a);N_GUARD,XQ(E)::S(D)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- Refutation
- S(b);CHECK
- Try
- Q(E);N_PINS(b)
- Threat
- DUALS(2)
- Vars
- S(b);CHECK,OGATE,XP(B)::QAB(E),XS(b)
- S(a);N_GUARD::S(D),XS(a)
- Refutation
- S(b);CHECK,XQ(E)
- Try
- Q(E);
- Threat
- QAB1(E)
- Vars
- S(a);N_GUARD::S(D)
- Refutation
- P(d);N_SPINS(b),XQ(E)
- Try
- Actual
- Q(E);N_PINS(b)
- Vars
- S(b);CHECK,OGATE,P_SPINS(b),XP(B)::QAB(E),XS(b)
- S(b);CHECK,OGATE::QAB(E)+P(B),XS(b)
- S(b);N_GUARD,XS(D)::QAB(E)+P(B)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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