MESON Chess Problem Database
Problem Display
PID: 263121 (B5K1/8/6P1/4PpR1/4pkN1/4RNp1/7Q/8 w - - 0 1)
Mlynka, Karol
3rd HM., SuperProblem, 2021
#2
9 + 4
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Tries
- 1.Rxe4+?
- 1...Kxf3
- 2.Ra4#
- 2.Rb4#
- 2.Rc4#
- 2.Rd4#
- 2.Rxf5#
- 2.Qe2#
- 1...fxe4!
- 1...Kxf3
- 1.Rxf5+?
- 1...Kxg4
- 2.Qh5#
- 1...Kxf5!
- 1...Kxg4
- 1.Qh1?
- 1...fxg4
- 2.Rxe4#
- 1...g2
- 2.Qh2#
- 1...exf3!
- 1...fxg4
- 1.Qc2?
- 1...exf3
- 2.Qxf5#
- 1...fxg4
- 2.Qxe4#
- 1...g2!
- 1...exf3
- 1.Qg2?
- 1...fxg4
- 2.Rxe4#
- 1...exf3!
- 1...fxg4
- 1.Qh4?
- 1...exf3
- 2.Rxf3#
- 1...g2
- 2.Qh2#
- 1...fxg4!
- 1...exf3
- 1.Qh5?
- threat
- 2.Rxf5#
- 1...g2
- 2.Qh2#
- 1...fxg4!
- threat
- 1.Rxe4+?
- Keys
- 1.Qh6!
- 1...exf3
- 2.Rxf3#
- 1...fxg4
- 2.Rh5#
- 1...g2
- 2.Qh2#
- 1...exf3
- 1.Qh6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Tries
- Try
- R(B);CHECK,XP(b)
- Refutation
- P(d);XR(B)
- Try
- R(F);CHECK,XP(d)
- Vars
- K(c);N_SPINP(a),P-FLIGHT,XS(D)::QAB1(A)
- Refutation
- K(c);N_SPINP(a),P-FLIGHT,XR(F)
- Try
- Q(A);N_PINP(a)
- Vars
- P(d);N_GUARD,XS(D)::R1(B),XP(b)
- P(a);OGATEB::QAB(A)
- Refutation
- P(b);XS(C)
- Try
- Q(A);N_PINP(a)
- Vars
- P(b);OGATE,XS(C)::QAR1(A),XP(d)
- P(d);N_GUARD,XS(D)::QAR1(A),XP(b)
- Refutation
- P(a);
- Try
- Q(A);N_PINP(a)
- Vars
- P(d);N_GUARD,XS(D)::R1(B),XP(b)
- Refutation
- P(b);XS(C)
- Try
- Q(A);N_PINP(a)
- Vars
- P(b);OGATE,XS(C)::R1(B),XP(b)
- P(a);OGATEB::QAB(A)
- Refutation
- P(d);P_SPINP(d),XS(D)
- Try
- Q(A);N_PINP(a)
- Threat
- R1(F),XP(d)
- Vars
- P(a);OGATEB::QAB(A)
- Refutation
- P(d);XS(D)
- Try
- Actual
- Q(A);N_PINP(a)
- Vars
- P(b);OGATE,XS(C)::R1(B),XP(b)
- P(d);SBLOCK,XS(D)::QAB(A)+R(F)
- P(a);OGATEB::QAB(A)
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).