MESON Chess Problem Database
Problem Display
PID: 254674 (1B2K3/1N2N2p/p7/1p1P3r/p2kp3/3B1P2/2Q2P2/4r3 w - - 0 1)
Kupper, Josef
idee & form, 2017
#2
9 + 8
| 15601 | Albrecht-Leiss-Degener Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxd5
- 2.Sc6#
- 1...Re5
- 2.Ba7#
- 1...exd3
- 2.Qc5#
- 1...b4
- 2.Qc4#
- 1...Rxd5
- Tries
- 1.Sd8?
- threat
- 2.Sdc6#
- 2.Se6#
- 1...exd3
- 2.Sc6#
- 1...exf3
- 2.Sc6#
- 1...Re5
- 2.Sc6#
- 2.Ba7#
- 1...Rh6!
- threat
- 1.Be2?
- threat
- 2.Qb2#
- 2.Qd2#
- 2.Qc5#
- 1...Rxd5
- 2.Sc6#
- 2.Qb2#
- 2.Qd2#
- 1...exf3
- 2.Qd3#
- 1...Rb1
- 2.Qd2#
- 2.Qc5#
- 1...Rc1
- 2.Qd2#
- 1...Rd1
- 2.Qb2#
- 2.Qc5#
- 1...a3
- 2.Qd2#
- 2.Qc5#
- 1...e3
- 2.Qd3#
- 2.Qb2#
- 2.Qc5#
- 1...Rxe2!
- threat
- 1.Bxe4?
- threat
- 2.Sc6#
- 2.Qd3#
- 2.Qc5#
- 1...Rxd5
- 2.Sc6#
- 2.Qd3#
- 1...Rh6
- 2.Sf5#
- 2.Qd3#
- 2.Qc5#
- 1...Rc1
- 2.Sc6#
- 2.Qd3#
- 1...Rd1
- 2.Sc6#
- 2.Qc5#
- 1...Re3
- 2.Sc6#
- 2.Qc5#
- 1...Re5
- 2.Ba7#
- 2.Qd3#
- 2.Qc5#
- 1...Rxe4!
- threat
- 1.Bxb5?
- threat
- 2.Qb2#
- 2.Qd2#
- 2.Qc4#
- 2.Qc5#
- 1...Rxd5
- 2.Sc6#
- 2.Qb2#
- 2.Qd2#
- 2.Qc4#
- 1...exf3
- 2.Qd3#
- 2.Qc4#
- 1...Rb1
- 2.Qd2#
- 2.Qc4#
- 2.Qc5#
- 1...Rc1
- 2.Qd2#
- 1...Rd1
- 2.Qb2#
- 2.Qc4#
- 2.Qc5#
- 1...Re2
- 2.Qc4#
- 2.Qc5#
- 1...Re3
- 2.Qc4#
- 2.Qc5#
- 1...a3
- 2.Qd2#
- 2.Qc4#
- 2.Qc5#
- 1...e3
- 2.Qd3#
- 2.Qb2#
- 2.Qc4#
- 2.Qc5#
- 1...axb5!
- threat
- 1.fxe4?
- threat
- 2.Sc6#
- 1...Rh6
- 2.Sf5#
- 1...Re5
- 2.Ba7#
- 1...Rxe4!
- threat
- 1.f4?
- threat
- 2.Ba7#
- 1...Rxd5
- 2.Sc6#
- 1...Rh6
- 2.Be5#
- 1...exd3!
- threat
- 1.Sd8?
- Keys
- 1.Bc4!
- threat
- 2.Sc6#
- 1...exf3
- 2.Qd3#
- 1...bxc4
- 2.Qd2#
- 1...Rh6
- 2.Sf5#
- 1...Re5
- 2.Ba7#
- threat
- 1.Bc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 3
- Sets
- R(f);SBLOCK,XP(E)::S(G)
- R(f);P_PINS(G),SBLOCK::B(H)
- P(d);P_PINS(G),SBLOCK,XB(C)::QAB1(A)
- P(e);N_GUARD::QAR1(A)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- P(d);P_PINS(G),XB(C)::S(F)
- P(d);P_PINS(G),XP(D)::S(F)
- Refutation
- R(f);
- Try
- B(C);
- Threat
- DUALS(3)
- Vars
- P(d);N_GUARD,XP(D)::QAR1(A)
- R(a);::QAR2(A)
- Refutation
- R(a);XB(C)
- Try
- B(C);XP(d)
- Threat
- DUALS(3)
- Refutation
- R(a);P_PINS(G),XB(C)
- Try
- B(C);XP(e)
- Threat
- DUALS(4)
- Vars
- R(a);::QAR2(A)
- Refutation
- P(g);XB(C)
- Try
- P(D);XP(d)
- Threat
- S(G)
- Vars
- R(f);N_GUARD::S(G)
- R(f);P_PINS(G),SBLOCK::B(H)
- Refutation
- R(a);P_PINS(G),XP(D)
- Try
- P(D);
- Threat
- B(H)
- Vars
- R(f);SBLOCK,XP(E)::S(G)
- R(f);N_GUARD::B(H)
- Refutation
- P(d);P_PINS(G),XB(C)
- Try
- Actual
- B(C);
- Threat
- S(G)
- Vars
- P(d);N_GUARD,P_PINS(G),XP(D)::QAR1(A)
- P(e);SBLOCK,XB(C)::QAR2(A)
- R(f);N_GUARD::S(G)
- R(f);P_PINS(G),SBLOCK::B(H)
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).