MESON Chess Problem Database
Problem Display
PID: 37987 (3Rrr2/b7/6nN/1KB4Q/5k2/1R1n1p1p/2BNP2P/3q1b2 w - - 0 1)
Swane, Jan Arnold Willem
2nd Prize, Parallele 50, 1948
#2
10 + 10
| 3105 | FIDE Album (1945-1955) | 1964 |
| 14583 | Hans + Peter + Rehm = Schach | 1994 |
| 23 | Die Schwalbe | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Re5
- 2.Qg4#
- 1...Rxd8
- 2.e3#
- 1...Rf5
- 2.Qxf5#
- 1...Rg8
- 2.Qf5#
- 1...Rh8
- 2.Qf5#
- 1...Sc1
- 2.Rxf3#
- 1...Sb2
- 2.Rxf3#
- 1...Sf2
- 2.Rxf3#
- 1...Sb4
- 2.Rxf3#
- 1...Sxc5
- 2.Rxf3#
- 1...Sde5
- 2.Rd4#
- 1...Sge5
- 2.e3#
- 1...Se7
- 2.e3#
- 1...Re5
- Tries
- 1.Sf7?
- threat
- 2.Qxf3#
- 2.Qg5#
- 1...Qxe2
- 2.Qg5#
- 1...Qxd2
- 2.Qxf3#
- 1...Bxe2
- 2.Qg5#
- 1...fxe2
- 2.Qf3#
- 2.Qg5#
- 1...Re3
- 2.Qg5#
- 1...Re5
- 2.Qxf3#
- 1...Bg2
- 2.Qg5#
- 1...Se1
- 2.Qf5#
- 2.Qg5#
- 1...Sde5
- 2.Rd4#
- 2.Qf5#
- 2.Qg5#
- 1...Sh4
- 2.Qg5#
- 1...Sge5
- 2.Qg5#
- 2.e3#
- 1...f2
- 2.Qf3#
- 2.Qg5#
- 1...Rxf7!
- threat
- 1.Rb4+?
- 1...Re4
- 2.Rxe4#
- 2.e3#
- 1...Sxb4!
- 1...Re4
- 1.Rd4+?
- 1...Re4
- 2.Rxe4#
- 1...Ke3!
- 1...Re4
- 1.Rd5?
- threat
- 2.Qxf3#
- 2.Qg4#
- 2.Qg5#
- 1...Qxe2
- 2.Qg4#
- 2.Qg5#
- 1...Qxd2
- 2.Qxf3#
- 2.Qg4#
- 1...Bxe2
- 2.Qg4#
- 2.Qg5#
- 1...Bxc5
- 2.Qxf3#
- 2.Qg5#
- 1...fxe2
- 2.Qf3#
- 2.Qg4#
- 2.Qg5#
- 1...Re3
- 2.Qg4#
- 2.Qg5#
- 1...Re5
- 2.Qg4#
- 1...Rf5
- 2.Rxf5#
- 2.Qg4#
- 2.Qxf5#
- 1...Bg2
- 2.Qg4#
- 2.Qg5#
- 1...Se1
- 2.Qg4#
- 2.Qg5#
- 1...Sf2
- 2.Rxf3#
- 2.Qxf3#
- 2.Qg5#
- 1...Sde5
- 2.Rd4#
- 1...Sh4
- 2.Qg4#
- 2.Qxh4#
- 2.Qg5#
- 1...Sge5
- 2.e3#
- 1...f2
- 2.Qf3#
- 2.Qg4#
- 2.Qg5#
- 1...Rb8+!
- threat
- 1.Rxe8?
- threat
- 2.Re4#
- 2.Qg4#
- 2.e3#
- 1...Qxe2
- 2.Qg4#
- 1...Qxd2
- 2.Qg4#
- 1...Rxe8
- 2.Qf5#
- 1...Bxe2
- 2.Re4#
- 2.Qg4#
- 1...Bxc5
- 2.Re4#
- 2.Qg4#
- 1...Sxc5
- 2.Rxf3#
- 2.Qg4#
- 1...fxe2
- 2.Re4#
- 2.Qg4#
- 1...Qe1
- 2.Re4#
- 2.Qg4#
- 1...Sc1
- 2.Rxf3#
- 2.Rb4#
- 2.Re4#
- 2.Qg4#
- 1...Se1
- 2.Rb4#
- 2.Re4#
- 2.Qg4#
- 1...Sb2
- 2.Rxf3#
- 2.Re4#
- 2.Qg4#
- 1...Sf2
- 2.Rxf3#
- 1...Sb4
- 2.Rxf3#
- 2.Rxb4#
- 2.Re4#
- 2.Qg4#
- 1...Sge5
- 2.e3#
- 1...Se7
- 2.e3#
- 1...Sde5!
- threat
- 1.Sf7?
- Keys
- 1.Sc4!
- threat
- 2.Qg4#
- 1...Ke4
- 2.Rd4#
- 1...Sf2
- 2.Rxf3#
- 1...Sde5
- 2.e3#
- 1...Sge5
- 2.Rd4#
- threat
- 1.Sc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 10
- Sets
- R(i);P_PINB(G),SBLOCK::QAR1(H)
- R(i);N_GUARD,XR(J)::P(C)
- R(j);N_GUARD,P_PINB(G)::QAR1(H),XR(j)
- R(j);N_GUARD::QAR1(H)
- S(c);OGATE,P_PINP(C)::R1(E),XP(d)
- S(c);OGATE,P_PINP(C),XB(G)::R1(E),XP(d)
- S(c);P_PINP(C),S_CUTR(i)::R(J)
- S(g);S_CUTR(i)::P(C)
- Tries
- Try
- S(I);
- Threat
- DUALS(2)
- Vars
- Q(a);XP(C)::QAB1(H)
- Q(a);XS(B)::QAR1(H),XP(d)
- B(b);XP(C)::QAB1(H)
- R(i);::QAB1(H)
- R(i);P_PINB(G)::QAR1(H),XP(d)
- B(b);::QAB1(H)
- S(g);::QAB1(H)
- Refutation
- R(j);XS(I)
- Try
- R(E);CHECK
- Refutation
- S(c);P_PINP(C),XR(E)
- Try
- R(J);CHECK
- Vars
- R(i);N_GUARD,P_SPINR(i)::R1(J),XR(i)
- Refutation
- K(f);P_SPINS(c),S_FLIGHT
- Try
- R(J);
- Threat
- DUALS(3)
- Vars
- R(i);::QAR1(H)
- S(c);P_PINP(C),S_CUTR(i)::R(J)
- S(g);S_CUTR(i)::P(C)
- Refutation
- R(i);CHECK
- Try
- R(J);XR(i)
- Threat
- DUALS(3)
- Vars
- Q(a);XP(C)::QAR1(H)
- Q(a);XS(B)::QAR1(H)
- R(j);N_GUARD,XR(J)::QAR1(H)
- S(c);OGATE,P_PINP(C)::R1(E),XP(d)
- S(g);::P(C)
- Refutation
- S(c);P_PINP(C)
- Try
- Actual
- S(B);
- Threat
- QAR1(H)
- Vars
- K(f);P-FLIGHT,P_SPINS(c)::R1(J)
- S(c);OGATE::R1(E),XP(d)
- S(c);S_CUTR(i)::P(C)
- S(g);S_CUTR(i)::R(J)
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).