MESON Chess Problem Database
Problem Display
PID: 244363 (8/1p2B3/1QbR4/2r4n/4pk1N/5P2/4R2K/4N3 w - - 0 1)
Senkus, Raimondas
Schweizerische Schachzeitung, 1992
#2
8 + 6
| 3713 | Snap | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ke5
- 2.Sd3#
- 1...Rd5
- 2.Rxe4#
- 1...Re5
- 2.Seg2#
- 2.Qe3#
- 1...Rf5
- 2.Sg6#
- 1...Ba4
- 2.Rxe4#
- 1...Bb5
- 2.Rxe4#
- 1...Bd7
- 2.Rxe4#
- 1...Be8
- 2.Rxe4#
- 1...e3
- 2.Sd3#
- 1...Ke5
- Tries
- 1.Rd5?
- threat
- 2.Seg2#
- 2.Shg2#
- 2.Sg6#
- 2.Bg5#
- 2.Bd6#
- 2.Rxe4#
- 2.Qc7#
- 1...Rxd5
- 2.Rxe4#
- 1...Bxd5
- 2.Qd6#
- 1...Rc2
- 2.Seg2#
- 2.Shg2#
- 2.Sg6#
- 2.Bg5#
- 2.Bd6#
- 2.Rf5#
- 2.Qe3#
- 2.Qc7#
- 1...Rc4
- 2.Seg2#
- 2.Shg2#
- 2.Sg6#
- 2.Bg5#
- 2.Bd6#
- 2.Rf5#
- 2.Qe3#
- 2.Qc7#
- 1...Ba4
- 2.Seg2#
- 2.Shg2#
- 2.Sg6#
- 2.Bg5#
- 2.Bd6#
- 2.Rxe4#
- 2.Qd6#
- 2.Qh6#
- 1...Bb5
- 2.Seg2#
- 2.Shg2#
- 2.Sg6#
- 2.Bg5#
- 2.Bd6#
- 2.Rxe4#
- 2.Qd6#
- 2.Qh6#
- 1...Bd7
- 2.Seg2#
- 2.Shg2#
- 2.Sg6#
- 2.Bg5#
- 2.Bd6#
- 2.Rxe4#
- 2.Qd6#
- 2.Qh6#
- 1...Be8
- 2.Seg2#
- 2.Shg2#
- 2.Bg5#
- 2.Bd6#
- 2.Rxe4#
- 2.Qd6#
- 2.Qh6#
- 1...Sg3
- 2.Seg2#
- 2.Shg2#
- 2.Sg6#
- 2.Bg5#
- 2.Bd6#
- 2.Qc7#
- 1...Sf6
- 2.Seg2#
- 2.Shg2#
- 2.Sg6#
- 2.Bd6#
- 2.Qc7#
- 1...e3
- 2.Seg2#
- 2.Sd3#
- 2.Shg2#
- 2.Sg6#
- 2.Bg5#
- 2.Bd6#
- 2.Qc7#
- 1...exf3!
- threat
- 1.Qxc5?
- threat
- 2.Seg2#
- 2.Shg2#
- 2.Sg6#
- 2.Bg5#
- 2.Qf5#
- 2.Qg5#
- 1...exf3
- 2.Qf5#
- 2.Qg5#
- 1...Bd7
- 2.Seg2#
- 2.Shg2#
- 2.Sg6#
- 2.Bg5#
- 2.Rxe4#
- 2.Qg5#
- 1...Be8
- 2.Seg2#
- 2.Shg2#
- 2.Bg5#
- 2.Rxe4#
- 2.Qf5#
- 2.Qg5#
- 1...Sg3
- 2.Seg2#
- 2.Shg2#
- 2.Sg6#
- 2.Bg5#
- 2.Qg5#
- 1...Sf6
- 2.Seg2#
- 2.Shg2#
- 2.Sg6#
- 2.Rxf6#
- 2.Qf5#
- 1...Sg7
- 2.Seg2#
- 2.Shg2#
- 2.Sg6#
- 2.Bg5#
- 2.Qg5#
- 1...Bd5!
- threat
- 1.Rd5?
- Keys
- 1.Qc7!
- threat
- 2.Rd5#
- 1...Ke5
- 2.Sd3#
- 1...exf3
- 2.Rd4#
- 1...Rd5
- 2.Rxe4#
- 2.Rxd5#
- 1...Re5
- 2.Seg2#
- 1...Rf5
- 2.Sg6#
- 1...Rg5
- 2.Rf6#
- 1...Ba4
- 2.Rxe4#
- 1...Bb5
- 2.Rxe4#
- 1...Bd5
- 2.Rc6#
- 1...Bd7
- 2.Rxe4#
- 1...Be8
- 2.Rxe4#
- threat
- 1.Qc7!
Anticipated by 25701(1962)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 2
- Sets
- K(b);P_SPINP(a),S_FLIGHT::S(A)
- R(c);S_CUTB(e)::R1(B),XP(a)
- R(c);SBLOCK::S(E)
- B(e);N_GUARD::R1(B),XP(a)
- P(a);N_GUARD::S(A)
- Tries
- Try
- R(G);
- Threat
- DUALS(7)
- Vars
- R(c);XR(G)::R1(B),XP(a)
- B(e);OGATE,XR(G)::QAB(F)
- Refutation
- P(a);XP(D)
- Try
- Q(F);XR(c)
- Threat
- DUALS(6)
- Refutation
- B(e);
- Try
- Actual
- Q(F);
- Threat
- QAB(F)+R(G)
- Vars
- K(b);P_SPINP(a),S_FLIGHT::S(A)
- P(a);XP(D)::QAB(F)+R(G),DCHECK
- R(c);SBLOCK::S(A)
- R(c);SBLOCK::S(E)
- R(c);SBLOCK::QAB(F)+R(G),DCHECK
- B(e);N_GUARD::R1(B),XP(a)
- B(e);S_CUTR(c)::QAB(F)+R(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).