MESON Chess Problem Database
Problem Display
PID: 89880 (5N2/pKB4B/8/1ppk4/4RpRn/2P2b2/4P3/5Qr1 w - - 0 1)
Kornin, Zalmen
Die Schwalbe, 1998
#2
9 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rg2
- 2.Qd1#
- 1...Rg3
- 2.Qd1#
- 1...Rxg4
- 2.Qd1#
- 1...Bxe4
- 2.Bg8#
- 1...Sg2
- 2.Rg5#
- 1...b4
- 2.c4#
- 1...c4
- 2.Re5#
- 1...Rg2
- Tries
- 1.Rb4?
- threat
- 2.Bg8#
- 1...Rxg4
- 2.Qd1#
- 1...Bxg4
- 2.Be4#
- 1...c4
- 2.Rxb5#
- 1...cxb4!
- threat
- 1.Rexf4?
- threat
- 2.Bg8#
- 1...Rxg4
- 2.Qd1#
- 1...Bxg4
- 2.e4#
- 1...c4!
- threat
- 1.Rgxf4?
- threat
- 2.Re5#
- 1...Rg5
- 2.Qd1#
- 1...Sg6
- 2.Bg8#
- 1...Bxe4!
- threat
- 1.Rg5+?
- 1...Rxg5
- 2.Qd1#
- 1...Sf5!
- 1...Rxg5
- 1.Qb1?
- threat
- 2.Bg8#
- 2.Qd3#
- 1...Rxg4
- 2.Qd3#
- 2.Qd1#
- 1...Bxe2
- 2.Bg8#
- 1...Bxe4
- 2.Bg8#
- 2.Qxe4#
- 1...Bxg4
- 2.Qd3#
- 1...c4
- 2.Re5#
- 2.Qxb5#
- 1...Rd1
- 2.Bg8#
- 2.Qxd1#
- 1...Sf5
- 2.Bg8#
- 1...Rxb1!
- threat
- 1.Qxf3?
- threat
- 2.Bg8#
- 2.Rd4#
- 2.Qd3#
- 1...Rxg4
- 2.Rd4#
- 2.Qd3#
- 1...c4
- 2.Re5#
- 1...Rd1
- 2.Bg8#
- 2.Rd4#
- 1...Rg3
- 2.Bg8#
- 2.Rd4#
- 1...Sf5
- 2.Bg8#
- 2.Ra4#
- 2.Rb4#
- 2.Rd4#
- 2.Rexf4#
- 1...Sxf3!
- threat
- 1.exf3?
- threat
- 2.Bg8#
- 2.Re5#
- 2.Qd3#
- 1...Rxf1
- 2.Bg8#
- 1...Rxg4
- 2.Re5#
- 2.Qd3#
- 2.Qd1#
- 1...c4
- 2.Re5#
- 1...Sf5
- 2.Bg8#
- 2.Re5#
- 1...Sg6
- 2.Bg8#
- 2.Qd3#
- 1...Sxf3!
- threat
- 1.Rb4?
- Keys
- 1.Sd7!
- threat
- 2.Sf6#
- 1...Bxe4
- 2.Bg8#
- 1...c4
- 2.Re5#
- threat
- 1.Sd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 5
- Sets
- R(a);N_GUARD::QAR(A)
- R(a);N_GUARD,XR(E)::QAR(A)
- B(b);SBLOCK,XR(D)::B(H)
- S(d);N_GUARD,S_CUTR(a)::R(E)
- P(e);N_GUARD::P(C)
- P(f);SBLOCK::R1(D)
- Tries
- Try
- R(D);
- Threat
- B(H)
- Vars
- R(a);N_GUARD,XR(E)::QAR(A)
- B(b);N_GUARD,XR(E)::B(H)
- P(f);OGATEB,SBLOCK::R(D),XP(e)
- Refutation
- P(f);XR(D)
- Try
- R(D);XP(c)
- Threat
- B(H)
- Vars
- R(a);N_GUARD,XR(E)::QAR(A)
- B(b);N_GUARD,XR(E)::P(B)
- Refutation
- P(f);
- Try
- R(E);XP(c)
- Threat
- R1(D)
- Vars
- R(a);N_GUARD::QAR(A)
- S(d);S_CUTR(a)::B(H)
- Refutation
- B(b);XR(D)
- Try
- R(E);CHECK
- Vars
- R(a);XR(E)::QAR(A)
- Refutation
- S(d);P_SPINS(d)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- B(b);XP(B)::B(H)
- B(b);XR(E)::QAR2(A)
- S(d);::B(H)
- Refutation
- R(a);XQ(A)
- Try
- Q(A);XB(b)
- Threat
- DUALS(3)
- Vars
- P(f);SBLOCK::QAB(A)+R(D),DCHECK
- Refutation
- S(d);XQ(A)
- Try
- P(B);XB(b)
- Threat
- DUALS(3)
- Vars
- R(a);XQ(A)::B(H)
- P(f);::R1(D)
- Refutation
- S(d);XP(B)
- Try
- Actual
- S(I);
- Threat
- S(I)
- Vars
- B(b);SBLOCK,XR(D)::B(H)
- P(f);SBLOCK::R1(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).