MESON Chess Problem Database
Problem Display
PID: 237776 (1b2RQ2/1Kp4b/1pp1N3/1r1kn1P1/R2p4/1P2P3/2P2pNB/3r1q2 w - - 0 1)
Goldschmeding, Cornelis
Arbejder-Skak, 1948
#2
11 + 12
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Rxd4#
- 1...Rb1
- 2.Rxd4#
- 1...Rc1
- 2.Rxd4#
- 1...Re1
- 2.Rxd4#
- 1...Bd3
- 2.Rxd4#
- 1...Be4
- 2.Sgf4#
- 2.Sef4#
- 1...Sd3
- 2.Rxd4#
- 1...Sf3
- 2.Sef4#
- 1...Sc4
- 2.Sef4#
- 1...Sg4
- 2.Sef4#
- 1...Sg6
- 2.Qf3#
- 1...Sd7
- 2.Sef4#
- 1...Sf7
- 2.Sef4#
- 1...dxe3
- 2.Sxe3#
- 2.Sgf4#
- 2.Sef4#
- 1...d3
- 2.Sgf4#
- 2.Sef4#
- 2.Rd4#
- 1...Ra1
- Tries
- 1.Sc5?
- threat
- 2.Sf4#
- 2.Rxe5#
- 1...Qxg2
- 2.Rxe5#
- 1...Rxc5
- 2.Rxe5#
- 1...Sd3
- 2.Rxd4#
- 2.Rd8#
- 1...Sf3
- 2.Sf4#
- 2.Rd8#
- 1...Sc4
- 2.Sf4#
- 1...Sg4
- 2.Sf4#
- 2.Rd8#
- 1...Sg6
- 2.Rd8#
- 2.e4#
- 1...Sd7
- 2.Sf4#
- 1...Sf7
- 2.Sf4#
- 1...bxc5+!
- threat
- 1.Sxc7+?
- 1...Ke4
- 2.Qf4#
- 1...Bxc7!
- 1...Ke4
- 1.Sg7?
- threat
- 2.Rxe5#
- 1...Sd3
- 2.Rxd4#
- 1...Sf3
- 2.Sf4#
- 1...Sc4
- 2.Sf4#
- 1...Sg4
- 2.Sf4#
- 1...Sg6
- 2.e4#
- 1...Sd7
- 2.Sf4#
- 1...Sf7
- 2.Sf4#
- 1...Ke4!
- threat
- 1.Sd8?
- threat
- 2.Rxe5#
- 1...Sd3
- 2.Rxd4#
- 1...Sf3
- 2.Sf4#
- 1...Sc4
- 2.Sf4#
- 1...Sg4
- 2.Sf4#
- 1...Sg6
- 2.e4#
- 1...Sd7
- 2.Sf4#
- 1...Sf7
- 2.Sf4#
- 1...Ke4!
- threat
- 1.Rd8+?
- 1...Ke4
- 2.Qf4#
- 1...Kxe6
- 2.Sf4#
- 2.Qf6#
- 1...Sd7!
- 1...Ke4
- 1.e4+?
- 1...Bxe4
- 2.Sgf4#
- 2.Sef4#
- 1...Kxe4!
- 1...Bxe4
- 1.Sc5?
- Keys
- 1.Sxd4!
- threat
- 2.Rxe5#
- 1...Ke4
- 2.Qf3#
- 1...Sd3
- 2.c4#
- 1...Sf3
- 2.Sf4#
- 1...Sc4
- 2.Sf4#
- 1...Sg4
- 2.Sf4#
- 1...Sg6
- 2.e4#
- 1...Sd7
- 2.Sf4#
- 1...Sf7
- 2.Sf4#
- threat
- 1.Sxd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 7
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- R(a);N_GUARD::R1(F),XP(d)
- B(k);S_CUTR(a)::R1(F),XP(d)
- S(g);S_CUTR(a)::R1(F),XP(d)
- S(g);::S(H)
- S(g);N_GUARD,S_CUTB(k)::QAB(K)
- Tries
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- Q(b);XS(B)::R1(J),XS(g)
- R(e);XS(H)::R1(J),XS(g)
- S(g);::S(B)
- Refutation
- P(h);CHECK,XS(H)
- Try
- S(H);CHECK,XP(j)
- Vars
- K(f);P_SPINP(d),P_SPINS(g),S_FLIGHT::QAR1(K)
- Refutation
- B(l);XS(H)
- Try
- S(H);
- Threat
- R1(J),XS(g)
- Vars
- S(g);S_CUTR(a)::R1(F),XP(d)
- S(g);::S(B)
- S(g);S_CUTB(k)::P(E)
- Refutation
- K(f);P_SPINP(d),P_SPINS(g),S_FLIGHT
- Try
- S(H);
- Threat
- R1(J),XS(g)
- Vars
- S(g);S_CUTR(a)::R1(F),XP(d)
- S(g);::S(B)
- S(g);S_CUTB(k)::P(E)
- Refutation
- K(f);P_SPINP(d),P_SPINS(g),S_FLIGHT
- Try
- R(J);CHECK
- Vars
- K(f);P_SPINP(d),S_FLIGHT::QAR1(K)
- Refutation
- S(g);P_SPINS(g)
- Try
- P(E);CHECK
- Refutation
- K(f);P_SPINP(d),S_FLIGHT,XP(E)
- Try
- Actual
- S(H);XP(d)
- Threat
- R1(J),XS(g)
- Vars
- K(f);P_SPINS(g),S_FLIGHT::QAB1(K)
- S(g);N_GUARD,S_CUTQ(b)::P(A)
- S(g);::S(B)
- S(g);S_CUTB(k)::P(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).