MESON Chess Problem Database
Problem Display
PID: 49886 (1r2R3/1pQ1b3/4p3/1N1k4/1Rp1p1B1/n3pP2/8/B6K w - - 0 1)
Papack, Daniel
2nd Prize, Ellerman-100 JT, 1993-1995
#2
8 + 9
SOLUTION
- SOUND
- Sets
- 1...Bxb4
- 2.Bxe6#
- 1...Bh4
- 2.Bxe6#
- 2.Qd6#
- 1...Bc5
- 2.Bxe6#
- 1...Bg5
- 2.Bxe6#
- 2.Qd6#
- 1...Bd6
- 2.Bxe6#
- 2.Qxd6#
- 1...Bf6
- 2.Bxe6#
- 2.Qd6#
- 1...Bd8
- 2.Bxe6#
- 2.Qd6#
- 1...Bf8
- 2.Bxe6#
- 1...Sb1
- 2.Qxc4#
- 1...Sc2
- 2.Qxc4#
- 1...c3
- 2.Sxc3#
- 2.Rd4#
- 2.fxe4#
- 1...exf3
- 2.Bxf3#
- 1...Bxb4
- Tries
- 1.Sd4?
- threat
- 2.Bxe6#
- 1...exf3
- 2.Bxf3#
- 1...e5
- 2.Be6#
- 1...Bd6!
- threat
- 1.Sd6?
- threat
- 2.fxe4#
- 1...Bxd6
- 2.Bxe6#
- 1...exf3
- 2.Bxf3#
- 1...c3!
- threat
- 1.Rxc4?
- threat
- 2.Sc3#
- 2.Rd4#
- 2.fxe4#
- 1...Sxb5
- 2.fxe4#
- 1...exf3
- 2.Sc3#
- 2.Bxf3#
- 2.Rd4#
- 1...Bc5
- 2.Bxe6#
- 2.Rxc5#
- 2.Qxc5#
- 1...e5
- 2.Sc3#
- 2.fxe4#
- 1...Bb4
- 2.Bxe6#
- 2.Rd4#
- 2.fxe4#
- 1...Bd6
- 2.Bxe6#
- 2.fxe4#
- 1...Bf6
- 2.Bxe6#
- 2.Rc5#
- 2.Qc5#
- 2.fxe4#
- 1...Sb1
- 2.Rd4#
- 2.fxe4#
- 1...Sc2
- 2.Sc3#
- 2.fxe4#
- 1...Sxc4!
- threat
- 1.Rxe7?
- threat
- 2.Bxe6#
- 2.Rd7#
- 2.Qd6#
- 1...Sxb5
- 2.Bxe6#
- 2.Rxb5#
- 1...exf3
- 2.Bxf3#
- 1...e5
- 2.Be6#
- 2.Rxe5#
- 2.Rd7#
- 2.Qd6#
- 1...Rd8
- 2.Bxe6#
- 1...Rh8+!
- threat
- 1.Rc8?
- threat
- 2.Qe5#
- 1...e5
- 2.Qxe5#
- 1...Bd6
- 2.Qxd6#
- 1...Bf6
- 2.Qd6#
- 2.Qc5#
- 2.Qd7#
- 1...c3
- 2.Sxc3#
- 2.Rd4#
- 2.fxe4#
- 1...Rxc8!
- threat
- 1.Rd8+?
- 1...Bd6
- 2.Rxd6#
- 2.Qxd6#
- 1...Bxd8
- 2.Qd6#
- 1...Rxd8!
- 1...Bd6
- 1.Qb6?
- threat
- 2.Sc7#
- 2.Bxe6#
- 1...Sxb5
- 2.Bxe6#
- 1...exf3
- 2.Bxf3#
- 1...e5
- 2.Sc3#
- 2.Sc7#
- 2.Be6#
- 1...Rc8
- 2.Bxe6#
- 1...Bd6
- 2.Bxe6#
- 2.Qxd6#
- 1...Bd8
- 2.Bxe6#
- 2.Qd6#
- 1...c3!
- threat
- 1.Qd7+?
- 1...Bd6
- 2.Qxd6#
- 1...Kc5!
- 1...Bd6
- 1.Sd4?
- Keys
- 1.Sa7!
- threat
- 2.Qe5#
- 1...Bd6
- 2.Bxe6#
- 1...Bf6
- 2.Bxe6#
- 1...c3
- 2.fxe4#
- 1...e5
- 2.Qxe5#
- threat
- 1.Sa7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 6
- Sets
- B(h);XR(D)::B(E),XP(f)
- B(h);::B(E),XP(f)
- S(a);N_GUARD::QAB1(G),XP(c)
- P(d);OGATE,XP(C)::B(E),XP(d)
- Tries
- Try
- S(F);
- Threat
- B(E),XP(f)
- Vars
- P(d);OGATE,XP(C)::B(E),XP(d)
- P(f);::B(E)
- Refutation
- B(h);
- Try
- S(F);
- Threat
- P(C),XP(d)
- Vars
- B(h);XS(F)::B(E),XP(f)
- P(d);OGATE,XP(C)::B(E),XP(d)
- Refutation
- P(c);
- Try
- R(D);XP(c)
- Threat
- DUALS(3)
- Vars
- S(a);XS(F)::P(C),XP(d)
- Refutation
- S(a);XR(D)
- Try
- R(H);XB(h)
- Threat
- DUALS(3)
- Vars
- P(d);OGATE,XP(C)::B(E),XP(d)
- R(i);::B(E),XP(f)
- Refutation
- R(i);CHECK
- Try
- R(H);
- Threat
- QAR1(G)
- Vars
- P(f);::QAR1(G),XP(f)
- B(h);N_GUARD::QAR1(G),XB(h)
- Refutation
- R(i);XR(H)
- Try
- R(H);CHECK
- Vars
- B(h);N_GUARD,XR(H)::QAR1(G)
- Refutation
- R(i);XR(H)
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- S(a);XS(F)::B(E),XP(f)
- P(d);OGATE,XP(C)::B(E),XP(d)
- R(i);::B(E),XP(f)
- Refutation
- P(c);
- Try
- Q(G);CHECK
- Vars
- B(h);N_GUARD,P_SPINB(h)::QAR1(G),XB(h)
- Refutation
- K(e);P-FLIGHT
- Try
- Actual
- S(F);
- Threat
- QAR1(G)
- Vars
- B(h);::B(E),XP(f)
- P(c);::P(C),XP(d)
- P(f);::QAR1(G),XP(f)
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).