MESON Chess Problem Database
Problem Display
PID: 244423 (8/1B1K4/1R5b/P1k5/p2nP3/r1r5/1Nn1NQ2/2R1B3 w - - 0 1)
Eerkes, Allard Pieter
Tijdschrift vd KNSB, 1933
#2
10 + 7
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rb3
- 2.Qxd4#
- 1...Rd3
- 2.Bb4#
- 1...Re3
- 2.Bb4#
- 1...Rf3
- 2.Bb4#
- 2.Qxd4#
- 1...Rg3
- 2.Bb4#
- 2.Qxd4#
- 1...Rh3
- 2.Bb4#
- 2.Qxd4#
- 1...Bxc1
- 2.Qf8#
- 1...Bd2
- 2.Qf8#
- 1...Be3
- 2.Qf8#
- 1...Bf8
- 2.Qxf8#
- 1...Sa1
- 2.Qxd4#
- 1...Sxe1
- 2.Qxd4#
- 1...Sb4
- 2.Qxd4#
- 1...Rb3
- Tries
- 1.Sxc3?
- threat
- 2.Rb5#
- 1...Rb3
- 2.Scxa4#
- 1...Be3
- 2.Qf8#
- 1...Se3
- 2.Scxa4#
- 1...Rxc3!
- threat
- 1.Sxd4?
- threat
- 2.Sb3#
- 2.Se6#
- 2.Rb5#
- 1...Re3
- 2.Se6#
- 1...Be3
- 2.Se6#
- 1...Se3
- 2.Se6#
- 1...Rab3
- 2.Sxb3#
- 2.Se6#
- 1...Rcb3
- 2.Sxb3#
- 2.Se6#
- 2.Rc6#
- 1...Rd3
- 2.Bb4#
- 2.Rb5#
- 2.Rc6#
- 1...Sxd4!
- threat
- 1.Sf4?
- threat
- 2.Se6#
- 1...Re3
- 2.Bb4#
- 1...Se3
- 2.Sfd3#
- 1...Bxf4!
- threat
- 1.Bxc3?
- threat
- 2.Bb4#
- 2.Bxd4#
- 1...Bxc1
- 2.Qf8#
- 1...Rb3
- 2.Bxd4#
- 1...Bd2
- 2.Bxd4#
- 2.Qf8#
- 1...Be3
- 2.Bb4#
- 2.Qf8#
- 1...Bg7
- 2.Bb4#
- 1...Sb4
- 2.Bxb4#
- 2.Bxd4#
- 2.Qxd4#
- 1...Rxc3!
- threat
- 1.Rxc2?
- threat
- 2.Qxd4#
- 1...Be3
- 2.Qf8#
- 1...Bg7!
- threat
- 1.Qf7?
- threat
- 2.Qd5#
- 2.Qe7#
- 1...Sxe2
- 2.Qd5#
- 1...Bf4
- 2.Qd5#
- 1...Bg5
- 2.Qd5#
- 1...Bf8
- 2.Qd5#
- 2.Qxf8#
- 1...Se3
- 2.Sd3#
- 2.Qe7#
- 1...Sb4
- 2.Qe7#
- 1...Sf5
- 2.Qd5#
- 2.Qxf5#
- 1...Sc6
- 2.Qd5#
- 1...Se6
- 2.Qf5#
- 2.Qe7#
- 1...Sb5!
- threat
- 1.Sxc3?
- Keys
- 1.Ba6!
- threat
- 2.Rb5#
- 1...Rab3
- 2.Sxa4#
- 1...Rcb3
- 2.Rc6#
- 2.Qxd4#
- 1...Re3
- 2.Bb4#
- 1...Be3
- 2.Qf8#
- 1...Se3
- 2.Sd3#
- threat
- 1.Ba6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 8
- Sets
- R(c);N_SPINS(e),P_SPINS(a)::QAB1(E),XS(e)
- R(c);N_SPINS(e),OGATE,P_SPINS(a)::B(B)
- B(g);N_GUARD,XR(A)::QAB(E)
- B(g);N_GUARD::QAB(E)
- B(g);N_GUARD,N_SPINS(e)::QAB(E)
- B(g);N_GUARD::QAB(E),XB(g)
- S(a);N_GUARD,P_SPINR(c)::QAB1(E),XS(e)
- S(a);N_GUARD,P_SPINR(c),XB(B)::QAB1(E),XS(e)
- Tries
- Try
- S(D);XR(c)
- Threat
- R1(H)
- Vars
- R(b);N_GUARD::S(D),XP(d)
- B(g);N_GUARD,N_SPINS(e)::QAB(E)
- S(a);N_SPINS(e)::R(A)+S(D),DCHECK,XP(d)
- Refutation
- R(b);XS(D)
- Try
- S(D);XS(e)
- Threat
- DUALS(3)
- Vars
- R(c);P_SPINS(a)::S(D)
- B(g);::S(D)
- S(a);P_SPINR(c)::S(D)
- Refutation
- S(a);P_SPINR(c),P_SPINS(a),XS(D)
- Try
- S(D);
- Threat
- S(D)
- Vars
- R(c);N_SPINS(e),OGATE,P_SPINS(a)::B(B)
- S(a);N_SPINS(e),P_SPINR(c)::S(D)
- Refutation
- B(g);XS(D)
- Try
- B(B);XR(c)
- Threat
- DUALS(2)
- Vars
- B(g);N_GUARD,XR(A)::QAB(E)
- R(b);::B(B),XS(e)
- B(g);::B(B)
- Refutation
- R(b);XB(B)
- Try
- R(A);P_PINR(c),XS(a)
- Threat
- QAB1(E),XS(e)
- Vars
- B(g);N_GUARD,N_SPINS(e)::QAB(E)
- Refutation
- B(g);
- Try
- Q(E);N_PINS(e)
- Threat
- DUALS(2)
- Vars
- S(e);XS(D)::QAR1(E)
- B(g);::QAR1(E)
- S(a);P_SPINR(c)::QAB(E)
- S(e);::QAR1(E)
- Refutation
- S(e);
- Try
- Actual
- B(I);
- Threat
- R1(H)
- Vars
- R(b);N_GUARD::S(C),XP(d)
- R(c);N_SPINS(e),OGATE,P_SPINS(a)::B(B)
- B(g);N_GUARD,N_SPINS(e)::QAB(E)
- S(a);N_SPINS(e),P_SPINR(c)::S(C)
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).