MESON Chess Problem Database
Problem Display
PID: 176364 (B7/p1Q5/1p2Rpp1/3P1p2/1PNkP2r/1P1N2Rp/2r1P1bK/4B3 w - - 0 1)
Brummelman, Derk Hendrikus (AKA Bruma, DH)
Schach-Echo, 1972
#2
13 + 10
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rc3
- 2.Bf2#
- 1...Rxc4
- 2.Qxc4#
- 1...b5
- 2.Qc5#
- 2.Qxa7#
- 1...a5
- 2.Qxb6#
- 1...a6
- 2.Qxb6#
- 1...Rc3
- Tries
- 1.Sc1?
- threat
- 2.Bf2#
- 2.Rd3#
- 2.e3#
- 1...Rxc1
- 2.Bf2#
- 2.Rd3#
- 1...Rxe2
- 2.Sxe2#
- 2.Bc3#
- 2.Rd3#
- 1...Rxe4
- 2.Rd3#
- 1...Bxe4
- 2.Bf2#
- 1...fxe4
- 2.e3#
- 1...Rd2
- 2.Bf2#
- 1...Rc3
- 2.Bxc3#
- 1...Rf4
- 2.Rd3#
- 2.e3#
- 1...Bf1
- 2.Bf2#
- 2.Rd3#
- 1...Bh1
- 2.Bf2#
- 2.Rd3#
- 1...f4
- 2.Bf2#
- 2.Rd3#
- 1...Bf3!
- threat
- 1.Sdb2?
- threat
- 2.Bf2#
- 2.Rd3#
- 2.e3#
- 1...Rxb2
- 2.Bf2#
- 2.Bc3#
- 2.Rd3#
- 1...Rxe2
- 2.Bc3#
- 2.Rd3#
- 1...Rxe4
- 2.Rd3#
- 1...Bxe4
- 2.Bf2#
- 1...fxe4
- 2.e3#
- 1...Rd2
- 2.Bf2#
- 1...Rc3
- 2.Bxc3#
- 1...Rf4
- 2.Rd3#
- 2.e3#
- 1...Bf1
- 2.Bf2#
- 2.Rd3#
- 1...Bh1
- 2.Bf2#
- 2.Rd3#
- 1...f4
- 2.Bf2#
- 2.Rd3#
- 1...Bf3!
- threat
- 1.Sf2?
- threat
- 2.Rd3#
- 2.e3#
- 1...Rxe2
- 2.Bc3#
- 2.Rd3#
- 1...Rxe4
- 2.Rd3#
- 1...Bxe4
- 2.e3#
- 1...fxe4
- 2.e3#
- 1...Bf3
- 2.e3#
- 1...Rc3
- 2.Bxc3#
- 1...f4
- 2.Rd3#
- 1...Rd2!
- threat
- 1.Sf4?
- threat
- 2.Bf2#
- 2.Rd3#
- 2.e3#
- 1...Rxe2
- 2.Sxe2#
- 2.Bc3#
- 2.Rd3#
- 1...Rxf4
- 2.Rd3#
- 1...Bxe4
- 2.Bf2#
- 1...fxe4
- 2.e3#
- 1...Rd2
- 2.Bf2#
- 1...Rc3
- 2.Bxc3#
- 1...Bf1
- 2.Bf2#
- 2.Rd3#
- 1...Bh1
- 2.Bf2#
- 2.Rd3#
- 1...Bf3!
- threat
- 1.Sc5?
- threat
- 2.Bf2#
- 2.Rd3#
- 2.e3#
- 1...Rxe2
- 2.Bc3#
- 2.Rd3#
- 1...Rxe4
- 2.Rd3#
- 1...Bxe4
- 2.Bf2#
- 1...fxe4
- 2.e3#
- 1...bxc5
- 2.Bf2#
- 2.Rd3#
- 2.Qxc5#
- 1...Rd2
- 2.Bf2#
- 1...Rc3
- 2.Bxc3#
- 1...Rf4
- 2.Rd3#
- 2.e3#
- 1...Bf1
- 2.Bf2#
- 2.Rd3#
- 1...Bh1
- 2.Bf2#
- 2.Rd3#
- 1...f4
- 2.Bf2#
- 2.Rd3#
- 1...Bf3!
- threat
- 1.Scb2?
- threat
- 2.Bf2#
- 2.e3#
- 1...Rxb2
- 2.Bf2#
- 2.Bc3#
- 2.Qc3#
- 2.Qc4#
- 1...Rxe2
- 2.Bc3#
- 2.Qc3#
- 2.Qc4#
- 1...Rxc7
- 2.e3#
- 1...Bxe4
- 2.Bf2#
- 1...fxe4
- 2.e3#
- 1...Bf3
- 2.Bf2#
- 1...Rc4
- 2.Qxc4#
- 2.e3#
- 1...Rc5
- 2.e3#
- 1...Rc6
- 2.e3#
- 1...Rf4
- 2.e3#
- 1...Bf1
- 2.Bf2#
- 1...Bh1
- 2.Bf2#
- 1...f4
- 2.Bf2#
- 1...Rxe4!
- threat
- 1.Sa3?
- threat
- 2.Sxc2#
- 2.Sb5#
- 2.Bf2#
- 1...Rxe2
- 2.Sb5#
- 2.Bc3#
- 2.Qc3#
- 2.Qc4#
- 1...Rxc7
- 2.Sb5#
- 1...Rxe4
- 2.Sxc2#
- 2.Sb5#
- 1...fxe4
- 2.Sxc2#
- 2.Sb5#
- 1...Bf3
- 2.Sxc2#
- 2.Bf2#
- 1...Rc1
- 2.Sb5#
- 2.Bf2#
- 1...Ra2
- 2.Sb5#
- 2.Bf2#
- 2.Bc3#
- 2.Qc3#
- 2.Qc4#
- 1...Rb2
- 2.Sb5#
- 2.Bf2#
- 2.Bc3#
- 2.Qc3#
- 2.Qc4#
- 1...Rd2
- 2.Sb5#
- 2.Bf2#
- 2.Qc4#
- 1...Rc3
- 2.Sb5#
- 2.Bf2#
- 2.Bxc3#
- 2.Qxc3#
- 1...Rc4
- 2.Sb5#
- 2.Qxc4#
- 1...Rc6
- 2.Sb5#
- 1...Rf4
- 2.Sxc2#
- 2.Sb5#
- 1...b5
- 2.Sxc2#
- 2.Sxb5#
- 2.Bf2#
- 1...a6
- 2.Sxc2#
- 2.Bf2#
- 1...Rc5!
- threat
- 1.Sd6?
- threat
- 2.Sb5#
- 2.Bf2#
- 1...Rxe2
- 2.Sb5#
- 2.Bc3#
- 2.Qc3#
- 2.Qc4#
- 1...Rxc7
- 2.Sb5#
- 1...Rxe4
- 2.Sb5#
- 1...fxe4
- 2.Sb5#
- 1...Bf3
- 2.Bf2#
- 1...Rc4
- 2.Sb5#
- 2.Qxc4#
- 1...Rc6
- 2.Sb5#
- 1...Rf4
- 2.Sb5#
- 1...b5
- 2.Sxb5#
- 2.Bf2#
- 1...a6
- 2.Bf2#
- 1...Rc5!
- threat
- 1.Rxf6?
- threat
- 2.Qe5#
- 1...Kxe4
- 2.Qe5#
- 1...Rxe4!
- threat
- 1.Sc1?
- Keys
- 1.Sde5!
- threat
- 2.Sc6#
- 1...Kxe4
- 2.Sf3#
- 1...Rxc4
- 2.Qxc4#
- 1...Rxe4
- 2.Rd3#
- 1...Bxe4
- 2.Bf2#
- 1...fxe4
- 2.e3#
- 1...fxe5
- 2.Qxe5#
- threat
- 1.Sde5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 3
- Sets
- R(a);SBLOCK::B(A)
- R(a);OGATE,XS(H)::QAR1(L),XR(a)
- P(j);N_GUARD::QAB(L),XP(g)
- Tries
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- R(e);XP(I)::R1(F)
- B(b);P_PINP(B),XP(I)::B(A)
- P(f);XP(I)::P(B)
- R(a);::B(A)
- R(a);N_GUARD::B(A),XR(a)
- Refutation
- B(b);P_PINP(B)
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- R(e);XP(I)::R1(F)
- B(b);P_PINP(B),XP(I)::B(A)
- P(f);XP(I)::P(B)
- R(a);::B(A)
- R(a);N_GUARD::B(A),XR(a)
- Refutation
- B(b);P_PINP(B)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- R(e);XP(I)::R1(F)
- B(b);XP(I)::P(B)
- P(f);XP(I)::P(B)
- B(b);::P(B)
- R(a);N_GUARD::B(A),XR(a)
- P(f);::R1(F)
- Refutation
- R(a);
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- R(e);XS(E)::R1(F)
- B(b);P_PINP(B),XP(I)::B(A)
- P(f);XP(I)::P(B)
- R(a);::B(A)
- R(a);N_GUARD::B(A),XR(a)
- Refutation
- B(b);P_PINP(B)
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- R(e);XP(I)::R1(F)
- B(b);P_PINP(B),XP(I)::B(A)
- P(f);XP(I)::P(B)
- R(a);::B(A)
- R(a);N_GUARD::B(A),XR(a)
- Refutation
- B(b);P_PINP(B)
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- R(a);XQ(L)::P(B)
- B(b);P_PINP(B),XP(I)::B(A)
- P(f);XP(I)::P(B)
- B(b);P_PINP(B)::B(A)
- R(a);::P(B)
- R(e);::P(B)
- P(f);::B(A)
- Refutation
- R(e);XP(I)
- Try
- S(H);
- Threat
- DUALS(3)
- Vars
- R(a);XQ(L)::S(H)
- R(a);::S(H)
- Refutation
- R(a);
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- R(a);XQ(L)::S(H)
- R(e);XP(I)::S(H)
- P(f);XP(I)::S(H)
- B(b);P_PINP(B)::B(A)
- R(a);::S(H)
- R(e);::S(H)
- P(j);::B(A)
- Refutation
- R(a);
- Try
- R(K);XP(h)
- Threat
- QAB1(L)
- Vars
- K(d);P-FLIGHT,XP(I)::QAR1(L)
- Refutation
- R(e);XP(I)
- Try
- Actual
- S(E);
- Threat
- S(E)
- Vars
- K(d);P-FLIGHT,XP(I)::R(K)+S(E)
- R(a);OGATE,XS(H)::QAR1(L),XR(a)
- R(e);SBLOCK,XP(I)::R1(F)
- B(b);P_PINP(B),SBLOCK,XP(I)::B(A)
- P(f);SBLOCK,XP(I)::P(B)
- P(h);OGATE,XS(E)::QAB1(L),XP(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).