MESON Chess Problem Database
Problem Display
PID: 239488 (4R3/3N4/1p3P2/2Qpp2r/2bnk1Pp/2ppp1Bn/3P1RK1/2rN4 w - - 0 1)
Groeneveld, Cornelis
Magyar Sakkelet, 1960
#2
10 + 13
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sxc3#
- 1...Rb1
- 2.Sxc3#
- 1...Rh6
- 2.Rxe5#
- 1...Rh7
- 2.Rxe5#
- 1...Rh8
- 2.Rxe5#
- 1...Sg1
- 2.Rf4#
- 1...Sf4+
- 2.Rxf4#
- 1...Sg5
- 2.Rf4#
- 2.Rxe5#
- 1...Sc2
- 2.Sxc3#
- 1...Se2
- 2.Qxe3#
- 1...Sb3
- 2.Qxe3#
- 1...Sf3
- 2.Qxe3#
- 1...Sb5
- 2.Qxe3#
- 1...Sf5
- 2.Rxe5#
- 1...Sc6
- 2.Qxe3#
- 1...Se6
- 2.Qxe3#
- 1...c2
- 2.Sc3#
- 1...bxc5
- 2.Sxc5#
- 1...Ra1
- Tries
- 1.Bxe5?
- threat
- 2.Qxd4#
- 1...Sf4+
- 2.Rxf4#
- 1...Rxe5
- 2.Rxe5#
- 1...bxc5
- 2.Sxc5#
- 1...Sc2
- 2.Sxc3#
- 1...Se2
- 2.Qxe3#
- 1...Sb3
- 2.Qxe3#
- 1...Sf3
- 2.Qxe3#
- 1...Sb5
- 2.Qxe3#
- 1...Sc6
- 2.Qxe3#
- 1...Se6
- 2.Qxe3#
- 1...Sf5!
- threat
- 1.Rf3?
- threat
- 2.Rxe3#
- 1...Sf4+
- 2.Rxf4#
- 1...Sxf3
- 2.Qxe3#
- 1...exd2
- 2.Re3#
- 1...Sc2
- 2.Sxc3#
- 1...Sf5
- 2.Rxe5#
- 1...e2
- 2.Re3#
- 1...hxg3!
- threat
- 1.Rf5?
- threat
- 2.Rexe5#
- 1...Sf4+
- 2.Rxf4#
- 1...Sf3
- 2.Qxe3#
- 1...Sc6
- 2.Qxe3#
- 1...Se6
- 2.Qxe3#
- 1...Rxf5!
- threat
- 1.dxc3?
- threat
- 2.Qxd4#
- 1...Sf4+
- 2.Rxf4#
- 1...Rxc3
- 2.Sxc3#
- 1...bxc5
- 2.Sxc5#
- 1...Se2
- 2.Qxe3#
- 1...Sb3
- 2.Qxe3#
- 1...Sf3
- 2.Qxe3#
- 1...Sb5
- 2.Qxe3#
- 1...Sf5
- 2.Rxe5#
- 1...Sc6
- 2.Qxe3#
- 1...Se6
- 2.Qxe3#
- 1...Sc2!
- threat
- 1.gxh5?
- threat
- 2.Rxe5#
- 1...Sf4+
- 2.Rxf4#
- 1...Sc6
- 2.Qxe3#
- 1...Se6
- 2.Qxe3#
- 1...Sf3!
- threat
- 1.f7?
- threat
- 2.Sf6#
- 1...Sf4+
- 2.Rxf4#
- 1...Rh6
- 2.Rxe5#
- 1...Rf5!
- threat
- 1.Bxe5?
- Keys
- 1.Qxb6!
- threat
- 2.Sc5#
- 1...Sf4+
- 2.Rxf4#
- 1...Sc2
- 2.Sxc3#
- 1...Se2
- 2.Qxe3#
- 1...Sb3
- 2.Qxe3#
- 1...Sf3
- 2.Qxe3#
- 1...Sb5
- 2.Qxe3#
- 1...Sf5
- 2.Rxe5#
- 1...Sc6
- 2.Qxe3#
- 1...Se6
- 2.Qxe3#
- threat
- 1.Qxb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 8
- Sets
- R(a);N_GUARD::S(A),XP(b)
- R(l);N_GUARD::R1(J),XP(k)
- S(e);N_GUARD::R1(C)
- S(e);CHECK,N_GUARD::R1(C),XS(e)
- S(g);S_CUTR(a)::S(A),XP(b)
- S(g);OGATE::QAR1(G),XP(d)
- S(g);S_CUTR(l)::R1(J),XP(k)
- S(g);N_SPINP(k),OGATE::QAR1(G),XP(d)
- P(b);S_CUTR(a)::S(A)
- P(m);XQ(G)::S(I),XP(m)
- Tries
- Try
- B(E);XP(k)
- Threat
- QAR1(G),XS(g)
- Vars
- S(e);CHECK,N_GUARD::R1(C),XS(e)
- R(l);OGATE,P_SPINR(l),XB(E)::R1(J),XR(l)
- P(m);XQ(G)::S(I),XP(m)
- S(g);S_CUTR(a)::S(A),XP(b)
- S(g);OGATE::QAR1(G),XP(d)
- Refutation
- S(g);
- Try
- R(C);
- Threat
- R1(C),XP(d)
- Vars
- S(e);CHECK,N_GUARD::R1(C),XS(e)
- S(g);OGATE,XR(C)::QAR1(G),XP(d)
- P(d);XP(B)::R1(C)
- S(g);S_CUTR(a)::S(A),XP(b)
- S(g);S_CUTR(l)::R1(J),XP(k)
- P(d);::R1(C)
- Refutation
- P(i);XB(E)
- Try
- R(C);
- Threat
- R1(J),XP(k)
- Vars
- S(e);CHECK,N_GUARD::R1(C),XS(e)
- S(g);OGATE::QAR1(G),XP(d)
- S(g);N_SPINP(k),OGATE::QAR1(G),XP(d)
- Refutation
- R(l);XR(C)
- Try
- P(B);XP(b)
- Threat
- QAR1(G),XS(g)
- Vars
- S(e);CHECK,N_GUARD::R1(C),XS(e)
- R(a);XP(B)::S(A),XR(a)
- P(m);XQ(G)::S(I),XP(m)
- S(g);OGATE::QAR1(G),XP(d)
- S(g);S_CUTR(l)::R1(J),XP(k)
- S(g);N_SPINP(k),OGATE::QAR1(G),XP(d)
- Refutation
- S(g);
- Try
- P(F);XR(l)
- Threat
- R1(J),XP(k)
- Vars
- S(e);CHECK,N_GUARD::R1(C),XS(e)
- S(g);OGATE::QAR1(G),XP(d)
- S(g);N_SPINP(k),OGATE::QAR1(G),XP(d)
- Refutation
- S(g);
- Try
- P(H);
- Threat
- S(I)
- Vars
- S(e);CHECK,N_GUARD::R1(C),XS(e)
- R(l);N_GUARD::R1(J),XP(k)
- Refutation
- R(l);
- Try
- Actual
- Q(G);XP(m)
- Threat
- S(I)
- Vars
- S(e);CHECK,N_GUARD::R1(C),XS(e)
- S(g);S_CUTR(a)::S(A),XP(b)
- S(g);OGATE::QAR1(G),XP(d)
- S(g);S_CUTR(l)::R1(J),XP(k)
- S(g);N_SPINP(k),OGATE::QAR1(G),XP(d)
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).