MESON Chess Problem Database
Problem Display
PID: 84952 (5K2/1n3p2/3P1k1p/4pP1R/3RppPp/n5Pr/p5Nr/Q1B4q w - - 0 1)
Petite, Efren
Die Schwalbe, 1961
#2
10 + 13
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sxd6
- 2.Rxd6#
- 1...fxg3
- 2.Rxh6#
- 1...f3
- 2.Rxh6#
- 1...exd4
- 2.Qxd4#
- 1...Sxd6
- Tries
- 1.Se3?
- threat
- 2.Sd5#
- 1...exd4
- 2.Qxd4#
- 1...fxe3!
- threat
- 1.Sxf4?
- threat
- 2.Sd5#
- 1...exd4
- 2.Qxd4#
- 1...exf4
- 2.Rd2#
- 1...e3!
- threat
- 1.Bxf4?
- threat
- 2.Rxh6#
- 1...exf4
- 2.Rd1#
- 1...hxg3!
- threat
- 1.gxh4?
- threat
- 2.Rxh6#
- 1...exd4
- 2.Qxd4#
- 1...Rxh4!
- threat
- 1.Se3?
- Keys
- 1.gxf4!
- threat
- 2.Rxh6#
- 1...exf4
- 2.Rd3#
- threat
- 1.gxf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- S(l);OGATE,XP(I)::R(E),XS(l)
- P(g);XP(D)::R(H),XP(k)
- P(g);::R(H),XP(k)
- P(i);OGATE,P_SPINP(i),XR(E)::QAB(A),XP(i)
- Tries
- Try
- S(C);
- Threat
- S(C)
- Vars
- P(i);OGATE,P_SPINP(i),XR(E)::QAB(A),XP(i)
- Refutation
- P(g);XS(C)
- Try
- S(C);XP(g)
- Threat
- S(C)
- Vars
- P(i);OGATE,P_SPINP(i),XR(E)::QAB(A),XP(i)
- P(i);OGATEB,XS(C)::QAB(A)+R(E)
- Refutation
- P(f);
- Try
- B(B);XP(g)
- Threat
- R(H),XP(k)
- Vars
- P(i);OGATEB,XB(B)::QAB(A)+R(E)
- Refutation
- P(h);XP(D)
- Try
- P(D);XP(h)
- Threat
- R(H),XP(k)
- Vars
- P(i);OGATE,P_SPINP(i),XR(E)::QAB(A),XP(i)
- Refutation
- R(e);XP(D)
- Try
- Actual
- P(D);XP(g)
- Threat
- R(H),XP(k)
- Vars
- P(i);OGATEB,XP(D)::QAB(A)+R(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).