MESON Chess Problem Database
Problem Display
PID: 239148 (3n4/3BR3/Kpp1qN2/4Pk1P/2N2r1P/Q4R1n/2b1P2B/8 w - - 0 1)
Groeneveld, Cornelis
Sachove umeni (Ceskoslovensky sach), 1986
#2
12 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qxd7
- 2.Se3#
- 1...Rxf3
- 2.Sd6#
- 1...Bd1
- 2.Qd3#
- 2.e4#
- 1...Bb3
- 2.e4#
- 1...Bd3
- 2.Qxd3#
- 1...Ba4
- 2.Qd3#
- 2.e4#
- 1...Sg1
- 2.Rxf4#
- 1...Sf2
- 2.Rxf4#
- 1...Sg5
- 2.Rxf4#
- 1...Sb7
- 2.Bxe6#
- 1...Sf7
- 2.Bxe6#
- 1...Qxd7
- Tries
- 1.Bxf4?
- threat
- 2.Se3#
- 2.Sd6#
- 1...Qxd7
- 2.Se3#
- 1...Bd3
- 2.Qxd3#
- 1...Sb7
- 2.Se3#
- 2.Bxe6#
- 1...Sf7
- 2.Se3#
- 2.Bxe6#
- 1...Sxf4!
- threat
- 1.Rf1?
- threat
- 2.Qxh3#
- 1...Rf3
- 2.Se3#
- 2.Sd6#
- 1...Bb3
- 2.e4#
- 1...Bd3
- 2.Qxd3#
- 1...Sg1
- 2.Rxf4#
- 1...Sg5
- 2.Rxf4#
- 1...Sf2!
- threat
- 1.Rf2?
- threat
- 2.Qxh3#
- 1...Rf3
- 2.Se3#
- 2.Sd6#
- 1...Bb3
- 2.e4#
- 1...Bd3
- 2.Qxd3#
- 1...Sg1
- 2.Rxf4#
- 1...Sg5
- 2.Rxf4#
- 1...Sxf2!
- threat
- 1.Rxe6?
- threat
- 2.Se3#
- 2.Sd6#
- 1...Rxf3
- 2.Sd6#
- 1...Bd3
- 2.Qxd3#
- 1...Sb7
- 2.Se3#
- 2.Rxc6#
- 2.Rd6#
- 2.Re7#
- 2.Re8#
- 1...Sf7
- 2.Se3#
- 2.Rxc6#
- 2.Rd6#
- 2.Re7#
- 2.Re8#
- 1...Sxe6!
- threat
- 1.Qb2?
- threat
- 2.Se3#
- 2.Sd6#
- 2.Qxc2#
- 1...Qxd7
- 2.Se3#
- 1...Rxf3
- 2.Sd6#
- 1...Bb1
- 2.Se3#
- 2.Sd6#
- 2.Qxb1#
- 1...Bd1
- 2.Se3#
- 2.Sd6#
- 2.e4#
- 1...Bb3
- 2.Se3#
- 2.Sd6#
- 2.e4#
- 1...Ba4
- 2.Se3#
- 2.Sd6#
- 2.e4#
- 1...Be4
- 2.Se3#
- 2.Sd6#
- 1...Sf2
- 2.Se3#
- 2.Sd6#
- 2.Rxf4#
- 1...Sg5
- 2.Se3#
- 2.Sd6#
- 2.Rxf4#
- 1...Sb7
- 2.Se3#
- 2.Bxe6#
- 2.Qxc2#
- 1...Sf7
- 2.Se3#
- 2.Bxe6#
- 2.Qxc2#
- 1...Bd3!
- threat
- 1.Qd6?
- threat
- 2.Se3#
- 1...Bd3
- 2.Qxd3#
- 1...Rxf3!
- threat
- 1.Qa1?
- threat
- 2.Se3#
- 2.Sd6#
- 1...Qxd7
- 2.Se3#
- 1...Rxf3
- 2.Sd6#
- 1...Sb7
- 2.Se3#
- 2.Bxe6#
- 1...Sf7
- 2.Se3#
- 2.Bxe6#
- 1...Bd3!
- threat
- 1.Qb3?
- threat
- 2.Qxc2#
- 1...Qxd7
- 2.Se3#
- 1...Rxf3
- 2.Sd6#
- 1...Bxb3
- 2.e4#
- 1...Bb1
- 2.Qxb1#
- 1...Bd1
- 2.Qd3#
- 2.e4#
- 1...Bd3
- 2.Qxd3#
- 1...Sf2
- 2.Rxf4#
- 1...Sg5
- 2.Rxf4#
- 1...Be4!
- threat
- 1.Qe3?
- threat
- 2.Sd6#
- 1...Bd3
- 2.Qxd3#
- 1...Be4
- 2.Qxe4#
- 1...Sb7
- 2.Bxe6#
- 1...Sf7
- 2.Bxe6#
- 1...Qxd7!
- threat
- 1.Bxf4?
- Keys
- 1.Qc3!
- threat
- 2.Se3#
- 2.Sd6#
- 2.Qxc2#
- 1...Qxd7
- 2.Se3#
- 1...Rxf3
- 2.Sd6#
- 1...Bb1
- 2.Se3#
- 2.Sd6#
- 1...Bd1
- 2.Se3#
- 2.Sd6#
- 2.Qd3#
- 2.e4#
- 1...Bb3
- 2.Se3#
- 2.Sd6#
- 2.Qd3#
- 2.e4#
- 1...Bd3
- 2.Qxd3#
- 1...Ba4
- 2.Se3#
- 2.Sd6#
- 2.Qd3#
- 2.e4#
- 1...Be4
- 2.Se3#
- 2.Sd6#
- 1...Sf2
- 2.Se3#
- 2.Sd6#
- 2.Rxf4#
- 1...Sg5
- 2.Se3#
- 2.Sd6#
- 2.Rxf4#
- 1...Sb7
- 2.Se3#
- 2.Bxe6#
- 2.Qxc2#
- 1...Sf7
- 2.Se3#
- 2.Bxe6#
- 2.Qxc2#
- threat
- 1.Qc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 6
- Sets
- Q(g);N_SPINQ(g),XB(K)::S(E)
- R(c);N_SPINR(c),XR(D)::S(E)
- B(a);N_GUARD::P(A)
- B(a);N_GUARD,P_PINS(E)::QAB(C),XB(a)
- S(b);N_GUARD::R1(D),XR(c)
- S(h);N_GUARD::B(K),XQ(g)
- Tries
- Try
- B(B);XR(c)
- Threat
- DUALS(2)
- Vars
- Q(g);N_SPINQ(g),XB(K)::S(E)
- B(a);N_GUARD,P_PINS(E)::QAB(C),XB(a)
- Refutation
- S(b);P_SPINS(b),XB(B)
- Try
- R(D);
- Threat
- QAB(C),XS(b)
- Vars
- B(a);N_GUARD::P(A)
- B(a);N_GUARD,P_PINS(E)::QAB(C),XB(a)
- S(b);N_GUARD::R1(D),XR(c)
- Refutation
- S(b);N_SPINR(c)
- Try
- R(D);
- Threat
- QAB(C),XS(b)
- Vars
- B(a);N_GUARD::P(A)
- B(a);N_GUARD,P_PINS(E)::QAB(C),XB(a)
- S(b);N_GUARD::R1(D),XR(c)
- Refutation
- S(b);N_SPINR(c),XR(D)
- Try
- R(L);XQ(g)
- Threat
- DUALS(2)
- Vars
- R(c);N_SPINR(c),XR(D)::S(E)
- B(a);N_GUARD,P_PINS(E)::QAB(C),XB(a)
- Refutation
- S(h);P_SPINS(h),XR(L)
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- Q(g);N_SPINQ(g),XB(K)::S(E)
- R(c);N_SPINR(c),XR(D)::S(E)
- Refutation
- B(a);P_PINS(E)
- Try
- Q(C);
- Threat
- S(E)
- Vars
- B(a);N_GUARD,P_PINS(E)::QAB(C),XB(a)
- Refutation
- R(c);N_SPINR(c),XR(D)
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- Q(g);N_SPINQ(g),XB(K)::S(E)
- R(c);N_SPINR(c),XR(D)::S(E)
- Refutation
- B(a);P_PINS(E)
- Try
- Q(C);
- Threat
- QAB(C),XB(a)
- Vars
- Q(g);N_SPINQ(g),XB(K)::S(E)
- R(c);N_SPINR(c),XR(D)::S(E)
- B(a);N_GUARD,XQ(C)::P(A)
- B(a);OGATEB::QAB(C),XB(a)
- B(a);N_GUARD,P_PINS(E)::QAB(C),XB(a)
- S(b);N_GUARD::R1(D),XR(c)
- Refutation
- B(a);
- Try
- Q(C);
- Threat
- S(E)
- Vars
- B(a);N_GUARD,P_PINS(E)::QAB(C),XB(a)
- B(a);N_GUARD::QAB1(C),XB(a)
- S(h);N_GUARD::B(K),XQ(g)
- Refutation
- Q(g);N_SPINQ(g),XB(K)
- Try
- Actual
- Q(C);
- Threat
- DUALS(3)
- Vars
- Q(g);N_SPINQ(g),XB(K)::S(E)
- R(c);N_SPINR(c),XR(D)::S(E)
- B(a);N_GUARD,P_PINS(E)::QAB(C),XB(a)
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).