MESON Chess Problem Database
Problem Display
PID: 233491 (B7/1nBp4/6K1/4R3/5kp1/1QbR2r1/b1N3rP/8 w - - 0 1)
Schreckenbach, Michael
Freie Presse, 1988
#2
8 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxc2
- 2.hxg3#
- 1...Rd2
- 2.hxg3#
- 1...Re2
- 2.hxg3#
- 1...Rf2
- 2.hxg3#
- 1...Bb1
- 2.Qf7#
- 1...Be1
- 2.Rd4#
- 1...Bd2
- 2.Rd4#
- 1...Bb4
- 2.Rd4#
- 1...Bd4
- 2.Rxd4#
- 1...Ba5
- 2.Rd4#
- 1...Bxe5
- 2.Rd4#
- 1...Sa5
- 2.Re4#
- 2.Rf5#
- 1...Sc5
- 2.Re4#
- 2.Rf5#
- 1...Sd6
- 2.Re4#
- 2.Rf5#
- 1...Sd8
- 2.Re4#
- 2.Rf5#
- 1...Rxc2
- Tries
- 1.Bxb7?
- threat
- 2.Re4#
- 2.Rf5#
- 1...Rxd3
- 2.Rf5#
- 1...Bxe5
- 2.Rd4#
- 1...Re3
- 2.Rf5#
- 1...d5!
- threat
- 1.Rde3?
- threat
- 2.R5e4#
- 2.Rf5#
- 1...Rxc2
- 2.R5e4#
- 2.hxg3#
- 1...Bxe5
- 2.Bxe5#
- 1...Rxe3!
- threat
- 1.Rxd7?
- threat
- 2.Rf7#
- 1...Kf3
- 2.Rf7#
- 1...Bxe5
- 2.Rd4#
- 1...Sd6
- 2.Rf5#
- 1...Sd8
- 2.Rf5#
- 1...Bxb3!
- threat
- 1.Re1+?
- 1...Be5
- 2.Bxe5#
- 2.Rd4#
- 1...Sd6
- 2.Re4#
- 1...d6!
- 1...Be5
- 1.Re2+?
- 1...Be5
- 2.Bxe5#
- 2.Rd4#
- 1...Sd6
- 2.Re4#
- 1...d6!
- 1...Be5
- 1.Ree3+?
- 1...Be5
- 2.Bxe5#
- 2.Rd4#
- 1...Sd6
- 2.Re4#
- 1...d6!
- 1...Be5
- 1.Re6+?
- 1...Be5
- 2.Rd4#
- 1...Sd6
- 2.Re4#
- 1...d6!
- 1...Be5
- 1.Re7+?
- 1...Be5
- 2.Rd4#
- 1...Sd6
- 2.Re4#
- 1...d6!
- 1...Be5
- 1.Re8+?
- 1...Be5
- 2.Rd4#
- 1...Sd6
- 2.Re4#
- 1...d6!
- 1...Be5
- 1.Qc4+?
- 1...Bd4
- 2.Qxd4#
- 1...Bxc4!
- 1...Bd4
- 1.Qd5?
- threat
- 2.Re4#
- 2.Rf5#
- 2.Qe4#
- 1...Rxd3
- 2.Rf5#
- 2.Qe4#
- 1...Bxe5
- 2.Bxe5#
- 2.Rd4#
- 2.Qd4#
- 2.Qxe5#
- 1...Re2
- 2.Re4#
- 2.Rf5#
- 2.hxg3#
- 1...Re3
- 2.Rf5#
- 1...Sc5
- 2.Re4#
- 2.Rf5#
- 1...Sd6
- 2.Re4#
- 2.Rf5#
- 1...Bxd5!
- threat
- 1.Bxb7?
- Keys
- 1.Rd6!
- threat
- 2.Rf6#
- 1...Kf3
- 2.Rf6#
- 1...Kxe5
- 2.Re6#
- 1...Bxe5
- 2.Rd4#
- 1...Sxd6
- 2.Rf5#
- threat
- 1.Rd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 10
- Sets
- R(b);N_GUARD,XS(A)::P(B),XR(d)
- R(b);N_GUARD::P(B),XR(d)
- B(a);N_GUARD::QAR(C)
- B(c);N_GUARD::R(D)
- B(c);N_GUARD::R(D),XB(c)
- B(c);N_GUARD,P_SPINB(c),XR(E)::R(D)
- Tries
- Try
- B(H);XS(g)
- Threat
- DUALS(2)
- Vars
- R(d);XR(D)::B(G)+R(E),DCHECK
- B(c);N_GUARD,P_SPINB(c),XR(E)::R(D)
- R(d);::B(G)+R(E),DCHECK
- Refutation
- P(h);
- Try
- R(D);
- Threat
- DUALS(2)
- Vars
- B(c);OGATE,P_SPINB(c),XR(E)::B(G),XB(c)
- Refutation
- R(d);XR(D)
- Try
- R(D);XP(h)
- Threat
- R(D)
- Vars
- K(e);P-FLIGHT,P_SPINB(c),P_SPINS(g)::R(D)
- B(c);N_GUARD,P_SPINB(c),XR(E)::R(D)
- S(g);::R1(E)
- S(g);::B(G)+R(E),DCHECK
- Refutation
- B(a);XQ(C)
- Try
- R(E);CHECK
- Vars
- S(g);P_SPINS(g)::R1(E)
- Refutation
- P(h);P_SPINP(h)
- Try
- R(E);CHECK
- Vars
- S(g);P_SPINS(g)::R1(E)
- Refutation
- P(h);P_SPINP(h)
- Try
- R(E);CHECK
- Vars
- S(g);P_SPINS(g)::R1(E)
- Refutation
- P(h);P_SPINP(h)
- Try
- R(E);CHECK
- Vars
- B(c);P_SPINB(c)::R(D)
- S(g);P_SPINS(g)::R1(E)
- Refutation
- P(h);P_SPINP(h)
- Try
- R(E);CHECK
- Vars
- B(c);P_SPINB(c)::R(D)
- S(g);P_SPINS(g)::R1(E)
- Refutation
- P(h);P_SPINP(h)
- Try
- R(E);CHECK
- Vars
- B(c);P_SPINB(c)::R(D)
- S(g);P_SPINS(g)::R1(E)
- Refutation
- P(h);P_SPINP(h)
- Try
- Q(C);CHECK
- Vars
- B(c);N_GUARD,P_SPINB(c)::QAR2(C),XB(c)
- Refutation
- B(a);XQ(C)
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- R(d);::B(G)+R(E),DCHECK
- Refutation
- B(a);XQ(C)
- Try
- Actual
- R(D);
- Threat
- R(D)
- Vars
- K(e);P-FLIGHT,P_SPINB(c),P_SPINS(g)::R(D)
- K(e);OGATEB,S_FLIGHT,XR(E)::B(G)+R(D),DCHECK
- B(c);N_GUARD,XR(E)::R(D)
- S(g);XR(D)::R1(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).