MESON Chess Problem Database
Problem Display
PID: 92115 (2qr1r2/b7/3R2pB/R1n1pkNn/4p1N1/4QP1P/B7/1b4K1 w - - 0 1)
Wielgos, Oskar
Schach, 1981
#2
10 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sb3
- 2.Rxe5#
- 1...Sd3
- 2.fxe4#
- 1...Sa4
- 2.Rxe5#
- 1...Sa6
- 2.Rxe5#
- 1...Se6
- 2.Rxe5#
- 1...Sb7
- 2.Rxe5#
- 1...Sd7
- 2.Be6#
- 1...exf3
- 2.Qxe5#
- 1...Sb3
- Tries
- 1.Sxe4?
- threat
- 2.Qg5#
- 1...Sxe4
- 2.Rxe5#
- 1...Sb3
- 2.Rxe5#
- 1...Sa4
- 2.Rxe5#
- 1...Sa6
- 2.Rxe5#
- 1...Se6
- 2.Rxe5#
- 1...Sb7
- 2.Rxe5#
- 1...Sd7
- 2.Be6#
- 1...Sf4
- 2.Sg3#
- 1...g5
- 2.Qxg5#
- 1...Sd3!
- threat
- 1.Se6?
- threat
- 2.Qg5#
- 1...Sxe6
- 2.Rxe5#
- 1...exf3
- 2.Qxe5#
- 1...g5
- 2.Qxg5#
- 1...Sb3
- 2.Rxe5#
- 1...Sd3
- 2.fxe4#
- 1...Sa4
- 2.Rxe5#
- 1...Sa6
- 2.Rxe5#
- 1...Sb7
- 2.Rxe5#
- 1...Sf4
- 2.Sg7#
- 1...Sd7!
- threat
- 1.Sh7?
- threat
- 2.Qg5#
- 1...exf3
- 2.Qxe5#
- 1...Sb3
- 2.Rxe5#
- 1...Sd3
- 2.fxe4#
- 1...Sa4
- 2.Rxe5#
- 1...Sa6
- 2.Rxe5#
- 1...Se6
- 2.Rxe5#
- 1...Sb7
- 2.Rxe5#
- 1...Sd7
- 2.Be6#
- 1...g5
- 2.Qxg5#
- 1...Sf4!
- threat
- 1.Be6+?
- 1...Sxe6
- 2.Rxe5#
- 1...Qxe6!
- 1...Sxe6
- 1.fxe4+?
- 1...Sxe4
- 2.Rxe5#
- 1...Bxe4!
- 1...Sxe4
- 1.Sxe4?
- Keys
- 1.Sf7!
- threat
- 2.Qg5#
- 1...exf3
- 2.Qxe5#
- 1...Sb3
- 2.Rxe5#
- 1...Sd3
- 2.fxe4#
- 1...Sa4
- 2.Rxe5#
- 1...Sa6
- 2.Rxe5#
- 1...Se6
- 2.Rxe5#
- 1...Sb7
- 2.Rxe5#
- 1...Sd7
- 2.Be6#
- 1...Sf4
- 2.Rf6#
- 1...g5
- 2.Qxg5#
- threat
- 1.Sf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- S(c);OGATE,P_PINQ(C),P_SPINP(d)::R1(G),XP(d)
- S(c);N_GUARD,P_PINQ(C),P_SPINP(d),S_CUTB(a)::P(D),XP(b)
- S(c);N_GUARD,P_PINQ(C),P_SPINP(d),S_CUTQ(i)::B(B)
- P(b);OGATE,XP(D)::QAR1(C),XP(d)
- Tries
- Try
- S(H);XP(b)
- Threat
- QAR1(C)
- Vars
- S(c);OGATE,P_PINQ(C),P_SPINP(d),XS(H)::R1(G),XP(d)
- S(c);OGATE,P_PINQ(C),P_SPINP(d)::R1(G),XP(d)
- S(c);N_GUARD,P_PINQ(C),P_SPINP(d),S_CUTQ(i)::B(B)
- S(f);N_GUARD::S(H)
- P(g);::QAR1(C),XP(g)
- Refutation
- S(c);P_PINQ(C),P_SPINP(d)
- Try
- S(H);
- Threat
- QAR1(C)
- Vars
- S(c);OGATE,P_PINQ(C),P_SPINP(d),XS(H)::R1(G),XP(d)
- P(b);OGATE,XP(D)::QAR1(C),XP(d)
- P(g);::QAR1(C),XP(g)
- S(c);OGATE,P_PINQ(C),P_SPINP(d)::R1(G),XP(d)
- S(c);N_GUARD,P_PINQ(C),P_SPINP(d),S_CUTB(a)::P(D),XP(b)
- S(f);N_GUARD::S(H)
- Refutation
- S(c);P_PINQ(C),P_SPINP(d)
- Try
- S(H);
- Threat
- QAR1(C)
- Vars
- P(b);OGATE,XP(D)::QAR1(C),XP(d)
- S(c);OGATE,P_PINQ(C),P_SPINP(d)::R1(G),XP(d)
- S(c);N_GUARD,P_PINQ(C),P_SPINP(d),S_CUTB(a)::P(D),XP(b)
- S(c);N_GUARD,P_PINQ(C),P_SPINP(d),S_CUTQ(i)::B(B)
- P(g);::QAR1(C),XP(g)
- Refutation
- S(f);
- Try
- B(B);CHECK
- Vars
- S(c);OGATE,P_PINQ(C),P_SPINP(d),XB(B)::R1(G),XP(d)
- Refutation
- Q(i);XB(B)
- Try
- P(D);CHECK,XP(b)
- Vars
- S(c);OGATE,P_PINQ(C),P_SPINP(d),XP(D)::R1(G),XP(d)
- Refutation
- B(a);XP(D)
- Try
- Actual
- S(H);
- Threat
- QAR1(C)
- Vars
- P(b);OGATE,XP(D)::QAR1(C),XP(d)
- S(c);OGATE,P_PINQ(C),P_SPINP(d)::R1(G),XP(d)
- S(c);N_GUARD,P_PINQ(C),P_SPINP(d),S_CUTB(a)::P(D),XP(b)
- S(c);N_GUARD,P_PINQ(C),P_SPINP(d),S_CUTQ(i)::B(B)
- S(f);N_GUARD::R1(I)
- P(g);::QAR1(C),XP(g)
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).