MESON Chess Problem Database
Problem Display
PID: 250908 (8/1KQ3bq/4N3/1p1N4/4r3/1R1PB3/k7/1R5b w - - 0 1)
Mees, Wouter Jacob Gregorius
Schakend Nederland, 1981
#2
8 + 6
| 15601 | Albrecht-Leiss-Degener Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxe3
- 2.Qa5#
- 1...Rd4
- 2.Qc2#
- 1...Re5
- 2.Qa5#
- 2.Qc2#
- 1...Rxe6
- 2.Qa5#
- 1...Bc3
- 2.Sxc3#
- 1...Bd4
- 2.Sb4#
- 1...Bh6
- 2.Sc3#
- 1...Bf8
- 2.Sc3#
- 1...b4
- 2.Qa5#
- 1...Rxe3
- Tries
- 1.Sd4?
- threat
- 2.Sc3#
- 2.Sb4#
- 2.Qa5#
- 2.Qc2#
- 1...Rxe3
- 2.Qa5#
- 2.Qc2#
- 1...Rxd4
- 2.Qc2#
- 1...Bxd4
- 2.Sb4#
- 1...Qh2
- 2.Sc3#
- 2.Sb4#
- 2.Qa5#
- 1...Rf4
- 2.Qa5#
- 2.Qc2#
- 1...Rg4
- 2.Qa5#
- 2.Qc2#
- 1...Rh4
- 2.Qa5#
- 2.Qc2#
- 1...Re5
- 2.Qa5#
- 2.Qc2#
- 1...Re6
- 2.Qa5#
- 2.Qc2#
- 1...Re8
- 2.Qa5#
- 2.Qc2#
- 1...Be5
- 2.Sc3#
- 2.Sb4#
- 1...Bf6
- 2.Sc3#
- 2.Sb4#
- 1...Bh6
- 2.Sc3#
- 2.Sb4#
- 1...Bf8
- 2.Sc3#
- 1...Bh8
- 2.Sc3#
- 2.Sb4#
- 1...b4
- 2.Sxb4#
- 2.Qa5#
- 2.Qc2#
- 1...Re7!
- threat
- 1.R1b2+?
- 1...Ka1
- 2.Qc1#
- 1...Bxb2!
- 1...Ka1
- 1.Ra3+?
- 1...Kxb1
- 2.Qc1#
- 1...Kxa3!
- 1...Kxb1
- 1.d4?
- threat
- 2.Sc3#
- 2.Sb4#
- 2.Qa5#
- 2.Qc2#
- 1...Rxe3
- 2.Qa5#
- 1...Rxe6
- 2.Qa5#
- 1...Bxd4
- 2.Sb4#
- 1...Qh2
- 2.Sc3#
- 2.Sb4#
- 2.Qa5#
- 1...Rf4
- 2.Qa5#
- 1...Rg4
- 2.Qa5#
- 1...Rh4
- 2.Qa5#
- 1...Re5
- 2.Qa5#
- 1...Be5
- 2.Sc3#
- 2.Sb4#
- 1...Bf6
- 2.Sc3#
- 2.Sb4#
- 1...Bh6
- 2.Sc3#
- 2.Sb4#
- 1...Bf8
- 2.Sc3#
- 1...Bh8
- 2.Sc3#
- 2.Sb4#
- 1...b4
- 2.Sxb4#
- 2.Qa5#
- 2.Qc2#
- 1...Rxd4!
- threat
- 1.Sd4?
- Keys
- 1.Bd4!
- threat
- 2.Sc3#
- 2.Sb4#
- 2.Qa5#
- 2.Qc2#
- 1...Rxd4
- 2.Qc2#
- 1...Rxe6
- 2.Qa5#
- 2.Qc2#
- 1...Bxd4
- 2.Sb4#
- 1...Qh2
- 2.Sc3#
- 2.Sb4#
- 2.Qa5#
- 1...Re1
- 2.Qa5#
- 2.Qc2#
- 1...Re2
- 2.Qa5#
- 1...Re3
- 2.Qa5#
- 2.Qc2#
- 1...Rf4
- 2.Qa5#
- 2.Qc2#
- 1...Rg4
- 2.Qa5#
- 2.Qc2#
- 1...Rh4
- 2.Qa5#
- 2.Qc2#
- 1...Re5
- 2.Qa5#
- 2.Qc2#
- 1...Be5
- 2.Sc3#
- 2.Sb4#
- 1...Bf6
- 2.Sc3#
- 2.Sb4#
- 1...Bh6
- 2.Sc3#
- 2.Sb4#
- 1...Bf8
- 2.Sc3#
- 1...Bh8
- 2.Sc3#
- 2.Sb4#
- 1...b4
- 2.Sxb4#
- 2.Qa5#
- 2.Qc2#
- threat
- 1.Bd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- R(c);N_GUARD,P_PINS(E),XB(D)::QAR(H)
- R(c);P_PINS(E),S_CUTB(e)::QAR2(H)
- R(c);N_GUARD,P_PINS(E),XS(F)::QAR(H)
- B(e);N_GUARD,P_PINQ(H)::S(E),XB(e)
- B(e);P_PINQ(H),S_CUTR(c)::S(E)
- B(e);N_GUARD,P_PINQ(H)::S(E)
- P(d);S_CUTR(c)::QAR(H)
- Tries
- Try
- S(F);
- Threat
- DUALS(4)
- Vars
- R(c);P_PINS(E),XS(F)::QAR2(H)
- B(e);P_PINQ(H),XS(F)::S(E)
- B(e);P_PINQ(H)::S(E)
- Refutation
- R(c);P_PINQ(H),P_PINS(E)
- Try
- R(A);CHECK
- Vars
- K(b);P-FLIGHT,S_CUTB(e)::QAR2(H)
- Refutation
- B(e);P_PINQ(H),XR(A)
- Try
- R(B);CHECK
- Vars
- K(b);S_FLIGHT,XR(A)::QAR1(H)
- Refutation
- K(b);P-FLIGHT,XR(B)
- Try
- P(C);
- Threat
- DUALS(4)
- Vars
- R(c);P_PINS(E),XB(D)::QAR(H)
- R(c);P_PINS(E),XS(F)::QAR(H)
- B(e);P_PINQ(H),XP(C)::S(E)
- R(c);P_PINS(E)::QAR(H)
- B(e);P_PINQ(H)::S(E)
- Refutation
- R(c);P_PINS(E),XP(C)
- Try
- Actual
- B(D);
- Threat
- DUALS(4)
- Vars
- R(c);P_PINS(E),XB(D)::QAR2(H)
- B(e);P_PINQ(H),XB(D)::S(E)
- R(c);P_PINS(E)::QAR(H)
- B(e);P_PINQ(H)::S(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).