MESON Chess Problem Database
Problem Display
PID: 19479 (8/q1Q1Rp2/2pP4/3p1B1K/5k2/2r1Np2/6nP/2B1N1R1 w - - 0 1)
Volkmann, Albert
1st Prize, Match: Berlin - Westphalia, 1957
#2
10 + 8
| 45 | Schach | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Qa1
- 2.d7#
- 1...Qa2
- 2.d7#
- 1...Qa4
- 2.d7#
- 1...Qa6
- 2.d7#
- 1...Qa8
- 2.d7#
- 1...Rxc1
- 2.Sd3#
- 1...Rc2
- 2.Sd3#
- 1...Rd3
- 2.Sxd3#
- 1...Rc4
- 2.Sd3#
- 1...Rc5
- 2.Sd3#
- 1...Sxe1
- 2.Rg4#
- 1...Sh4
- 2.Rg4#
- 1...d4
- 2.Re4#
- 1...Qa1
- Tries
- 1.Bb1?
- threat
- 2.S3xg2#
- 2.Sxd5#
- 1...Qxe3
- 2.d7#
- 1...Rxc1
- 2.Sd3#
- 1...Sxe1
- 2.Sg2#
- 2.Sxd5#
- 2.Rg4#
- 1...Sxe3
- 2.Rg4#
- 1...Rc2
- 2.Sd3#
- 1...Rd3
- 2.Sxd3#
- 1...Sh4
- 2.S3g2#
- 2.Sxd5#
- 2.Rg4#
- 1...d4
- 2.S3xg2#
- 2.Sd5#
- 2.Re4#
- 1...Rxe3!
- threat
- 1.Bc2?
- threat
- 2.S3xg2#
- 2.Sxd5#
- 1...Qxe3
- 2.d7#
- 1...Rxc2
- 2.Sd3#
- 1...Sxe1
- 2.Sg2#
- 2.Sxd5#
- 2.Rg4#
- 1...Sxe3
- 2.Rg4#
- 1...Rd3
- 2.Sxd3#
- 1...Sh4
- 2.S3g2#
- 2.Sxd5#
- 2.Rg4#
- 1...d4
- 2.S3xg2#
- 2.Sd5#
- 2.Re4#
- 1...Rxe3!
- threat
- 1.Bd3?
- threat
- 2.S3xg2#
- 2.Sxd5#
- 1...Qxe3
- 2.d7#
- 1...Rxd3
- 2.Sxd3#
- 1...Sxe1
- 2.Sg2#
- 2.Sxd5#
- 2.Rg4#
- 1...Sxe3
- 2.Rg4#
- 1...Sh4
- 2.S3g2#
- 2.Sxd5#
- 2.Rg4#
- 1...d4
- 2.S3xg2#
- 2.Sd5#
- 2.Re4#
- 1...Rxc1!
- threat
- 1.Bh3?
- threat
- 2.S3xg2#
- 2.Sxd5#
- 1...Qxe3
- 2.d7#
- 1...Rxc1
- 2.Sd3#
- 1...Rxe3
- 2.Sd3#
- 1...Sxe1
- 2.Sg2#
- 2.Sxd5#
- 2.Rg4#
- 1...Sh4
- 2.S3g2#
- 2.Sxd5#
- 2.Rg4#
- 1...d4
- 2.S3xg2#
- 2.Sd5#
- 1...Sxe3!
- threat
- 1.Bg4?
- threat
- 2.S3xg2#
- 2.Sxd5#
- 1...Qxe3
- 2.d7#
- 1...Rxc1
- 2.Sd3#
- 1...Rxe3
- 2.Sd3#
- 1...Sxe1
- 2.Sg2#
- 2.Sxd5#
- 1...Sh4
- 2.S3g2#
- 2.Sxd5#
- 1...d4
- 2.S3xg2#
- 2.Sd5#
- 1...Sxe3!
- threat
- 1.Bg6?
- threat
- 2.S3xg2#
- 2.Sxd5#
- 1...Qxe3
- 2.d7#
- 1...Rxc1
- 2.Sd3#
- 1...Rxe3
- 2.Sd3#
- 1...Sxe1
- 2.Sg2#
- 2.Sxd5#
- 2.Rg4#
- 1...Sxe3
- 2.Rg4#
- 1...Sh4
- 2.S3g2#
- 2.Sxd5#
- 2.Rg4#
- 1...d4
- 2.S3xg2#
- 2.Sd5#
- 2.Re4#
- 1...fxg6+!
- threat
- 1.Bd7?
- threat
- 2.S3xg2#
- 2.Sxd5#
- 1...Rxc1
- 2.Sd3#
- 1...Rxe3
- 2.Sd3#
- 1...Sxe1
- 2.Sg2#
- 2.Sxd5#
- 2.Rg4#
- 1...Sxe3
- 2.Rg4#
- 1...Sh4
- 2.S3g2#
- 2.Sxd5#
- 2.Rg4#
- 1...d4
- 2.S3xg2#
- 2.Sd5#
- 1...Qxe3!
- threat
- 1.Bc8?
- threat
- 2.S3xg2#
- 2.Sxd5#
- 1...Rxc1
- 2.Sd3#
- 1...Rxe3
- 2.Sd3#
- 1...Sxe1
- 2.Sg2#
- 2.Sxd5#
- 2.Rg4#
- 1...Sxe3
- 2.Rg4#
- 1...Sh4
- 2.S3g2#
- 2.Sxd5#
- 2.Rg4#
- 1...d4
- 2.S3xg2#
- 2.Sd5#
- 1...Qxe3!
- threat
- 1.Bb1?
- Keys
- 1.Bh7!
- threat
- 2.S3xg2#
- 2.Sxd5#
- 1...Qxe3
- 2.d7#
- 1...Rxc1
- 2.Sd3#
- 1...Rxe3
- 2.Sd3#
- 1...Sxe1
- 2.Sg2#
- 2.Sxd5#
- 2.Rg4#
- 1...Sxe3
- 2.Rg4#
- 1...Sh4
- 2.S3g2#
- 2.Sxd5#
- 2.Rg4#
- 1...d4
- 2.S3xg2#
- 2.Sd5#
- 2.Re4#
- threat
- 1.Bh7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 12
- Sets
- Q(g);N_GUARD::QAB(I)+P(H)
- R(b);N_GUARD,XB(A)::S(B)
- R(b);N_GUARD::S(B)
- R(b);N_GUARD::S(B),XR(b)
- S(a);OGATE,XS(B)::R1(C)
- S(a);OGATE::R1(C)
- P(e);N_GUARD::R1(J)
- Tries
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- Q(g);N_GUARD,P_SPINQ(g),XS(E)::QAB(I)+P(H)
- R(b);N_GUARD,XB(A)::S(B)
- S(a);OGATE,P_SPINS(a),XS(E)::R1(C)
- R(b);N_GUARD::S(B)
- R(b);N_GUARD::S(B),XR(b)
- Refutation
- R(b);P_SPINR(b),XS(E)
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- Q(g);N_GUARD,P_SPINQ(g),XS(E)::QAB(I)+P(H)
- R(b);N_GUARD,XB(F)::S(B)
- S(a);OGATE,P_SPINS(a),XS(E)::R1(C)
- R(b);N_GUARD::S(B),XR(b)
- Refutation
- R(b);P_SPINR(b),XS(E)
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- Q(g);N_GUARD,P_SPINQ(g),XS(E)::QAB(I)+P(H)
- R(b);XB(F)::S(B),XR(b)
- S(a);OGATE,P_SPINS(a),XS(E)::R1(C)
- Refutation
- R(b);XB(A)
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- Q(g);N_GUARD,P_SPINQ(g),XS(E)::QAB(I)+P(H)
- R(b);N_GUARD,XB(A)::S(B)
- R(b);N_GUARD,P_SPINR(b),XS(E)::S(B)
- Refutation
- S(a);P_SPINS(a),XS(E)
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- Q(g);N_GUARD,P_SPINQ(g),XS(E)::QAB(I)+P(H)
- R(b);N_GUARD,XB(A)::S(B)
- R(b);N_GUARD,P_SPINR(b),XS(E)::S(B)
- Refutation
- S(a);P_SPINS(a),XS(E)
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- Q(g);N_GUARD,P_SPINQ(g),XS(E)::QAB(I)+P(H)
- R(b);N_GUARD,XB(A)::S(B)
- R(b);N_GUARD,P_SPINR(b),XS(E)::S(B)
- S(a);OGATE,P_SPINS(a),XS(E)::R1(C)
- Refutation
- P(h);CHECK,XB(F)
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- R(b);N_GUARD,XB(A)::S(B)
- R(b);N_GUARD,P_SPINR(b),XS(E)::S(B)
- S(a);OGATE,P_SPINS(a),XS(E)::R1(C)
- Refutation
- Q(g);P_SPINQ(g),XS(E)
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- R(b);N_GUARD,XB(A)::S(B)
- R(b);N_GUARD,P_SPINR(b),XS(E)::S(B)
- S(a);OGATE,P_SPINS(a),XS(E)::R1(C)
- Refutation
- Q(g);P_SPINQ(g),XS(E)
- Try
- Actual
- B(F);
- Threat
- DUALS(2)
- Vars
- Q(g);N_GUARD,P_SPINQ(g),XS(E)::QAB(I)+P(H)
- R(b);N_GUARD,XB(A)::S(B)
- R(b);N_GUARD,P_SPINR(b),XS(E)::S(B)
- S(a);OGATE,P_SPINS(a),XS(E)::R1(C)
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).