MESON Chess Problem Database
Problem Display
PID: 216559 (n4K2/1Qpp3p/2r1R3/r2k1BR1/Np3BP1/bP1NP3/1pp4n/5q1b w - - 0 1)
Hertmann, Sandor
Deutsche Schachzeitung, 1928
#2
11 + 14
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qxf4
- 2.Sxf4#
- 1...Sxg4
- 2.Bxg4#
- 1...Qxf4
- Tries
- 1.Ke7?
- threat
- 2.Be4#
- 2.Bg6#
- 2.Bxh7#
- 2.Re5#
- 1...Qxd3
- 2.Bxd3#
- 2.Be4#
- 2.Re5#
- 1...Qxf4
- 2.Sxf4#
- 2.Be4#
- 1...Sxg4
- 2.Be4#
- 2.Bxg4#
- 1...Be4
- 2.Bxe4#
- 2.Re5#
- 1...Sf3
- 2.Be4#
- 1...d6
- 2.Be4#
- 2.Bg6#
- 2.Bxh7#
- 1...h5
- 2.Be4#
- 2.Bg6#
- 2.Bh7#
- 2.Re5#
- 1...h6
- 2.Be4#
- 2.Re5#
- 1...dxe6!
- threat
- 1.Kf7?
- threat
- 2.Be4#
- 2.Bg6#
- 2.Bxh7#
- 1...Qxd3
- 2.Bxd3#
- 2.Be4#
- 1...Qxf4
- 2.Sxf4#
- 1...Sxg4
- 2.Be4#
- 2.Bxg4#
- 1...Be4
- 2.Bxe4#
- 1...Sf3
- 2.Be4#
- 1...h5
- 2.Be4#
- 2.Bg6#
- 2.Bh7#
- 1...h6
- 2.Be4#
- 1...dxe6!
- threat
- 1.Sb6+?
- 1...cxb6
- 2.Rd6#
- 1...Sxb6!
- 1...cxb6
- 1.Re7?
- threat
- 2.Be4#
- 2.Bg6#
- 2.Bxd7#
- 2.Bxh7#
- 2.Rxd7#
- 1...Qxd3
- 2.Bxd3#
- 2.Be4#
- 2.Rxd7#
- 1...Sxg4
- 2.Be4#
- 2.Bxg4#
- 2.Rxd7#
- 1...Be4
- 2.Bxe4#
- 2.Be6#
- 2.Rxd7#
- 1...Sf3
- 2.Be4#
- 2.Rxd7#
- 1...Sb6
- 2.Be4#
- 2.Bg6#
- 2.Bxd7#
- 2.Bxh7#
- 1...d6
- 2.Be4#
- 2.Bg6#
- 2.Bd7#
- 2.Bxh7#
- 2.Bc8#
- 1...h5
- 2.Be4#
- 2.Bg6#
- 2.Bxd7#
- 2.Bh7#
- 2.Rxd7#
- 1...h6
- 2.Be4#
- 2.Rxd7#
- 1...Qxf4!
- threat
- 1.Re8?
- threat
- 2.Be4#
- 2.Bg6#
- 2.Bxd7#
- 2.Bxh7#
- 1...Qxd3
- 2.Bxd3#
- 2.Be4#
- 1...Sxg4
- 2.Be4#
- 2.Bxg4#
- 1...Be4
- 2.Bxe4#
- 2.Be6#
- 1...Sf3
- 2.Be4#
- 1...d6
- 2.Be4#
- 2.Bg6#
- 2.Bd7#
- 2.Bxh7#
- 2.Bc8#
- 1...h5
- 2.Be4#
- 2.Bg6#
- 2.Bxd7#
- 2.Bh7#
- 1...h6
- 2.Be4#
- 1...Qxf4!
- threat
- 1.Qb5+?
- 1...Rc5
- 2.Qxd7#
- 1...Rxb5!
- 1...Rc5
- 1.Ke7?
- Keys
- 1.Qxb4!
- threat
- 2.Re5#
- 1...Bxb4+
- 2.Sxb4#
- 1...Qxf4
- 2.Sxf4#
- 1...Rxe6
- 2.Be4#
- 1...Sxg4
- 2.Bxg4#
- 1...dxe6
- 2.Be4#
- 1...Rd6
- 2.Qc4#
- 1...Rac5
- 2.Qd4#
- 1...Rc3
- 2.Sxc3#
- 1...Rc4
- 2.bxc4#
- 1...Rcc5
- 2.Qd4#
- 1...Rca6
- 2.Sc3#
- 1...Rb6
- 2.Sc3#
- 1...Sf3
- 2.e4#
- 1...d6
- 2.Qd4#
- threat
- 1.Qxb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 12
- REMOVED MATES = 0
- Sets
- Q(a);P_PINB(G),XB(E)::S(B),XQ(a)
- S(e);OGATE,XP(F)::R(H)+B(G),XS(e)
- Tries
- Try
- K(K);S_FLIGHT
- Threat
- DUALS(4)
- Vars
- S(e);::R(H)+B(G),DCHECK
- Refutation
- P(l);XR(I)
- Try
- K(K);P-FLIGHT
- Threat
- DUALS(3)
- Vars
- Q(a);P_PINB(G),XB(E)::S(B),XQ(a)
- B(b);::R(H)+B(G),DCHECK,XB(b)
- S(e);::R(H)+B(G),DCHECK
- P(m);::R(H)+B(G),DCHECK
- Refutation
- P(l);XR(I)
- Try
- S(D);CHECK
- Vars
- P(k);XS(D)::R1(I)
- Refutation
- S(n);XS(D)
- Try
- R(I);
- Threat
- DUALS(5)
- Refutation
- Q(a);P_PINB(G),XB(E)
- Try
- R(I);
- Threat
- DUALS(4)
- Vars
- S(e);::R(H)+B(G),DCHECK
- P(m);::R(H)+B(G),DCHECK
- Refutation
- Q(a);P_PINB(G),XB(E)
- Try
- Q(J);CHECK,N_PINR(j)
- Vars
- R(j);OGATE,P_SPINR(j)::QAR2(J),XP(l)
- Refutation
- R(h);XQ(J)
- Try
- Actual
- Q(J);N_PINR(j),P_SPINQ(J),XP(g)
- Threat
- R1(I)
- Vars
- B(f);CHECK,XQ(J)::S(B),XB(f)
- Q(a);P_PINB(G),XB(E)::S(B),XQ(a)
- R(j);SBLOCK,XR(I)::R(H)+B(G),DCHECK
- S(e);OGATE,XP(F)::R(H)+B(G),XS(e)
- P(l);SBLOCK,XR(I)::R(H)+B(G),DCHECK
- R(j);N_PINQ(J)::QAB1(J)
- R(h);N_PINQ(J)::QAR1(J)
- R(j);N_GUARD::S(D),XR(j)
- R(j);OGATE::P(A),XR(j)
- R(j);N_PINQ(J)::QAR1(J)
- R(j);N_GUARD::S(D)
- S(e);S_CUTB(b)::P(C)
- P(l);N_PINQ(J)::QAR1(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).