MESON Chess Problem Database
Problem Display
PID: 239463 (8/2p1K1QB/p6B/2P1R3/2Nk4/2RN1b2/1P2rrn1/2n3q1 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Nepszava, 1939
#2
10 + 9
| 5454 | Near Snap | 2021 |
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxb2
- 2.Rg5#
- 2.Rh5#
- 1...Rc2
- 2.Rg5#
- 2.Rh5#
- 1...Rd2
- 2.Rg5#
- 2.Rh5#
- 1...Rxe5+
- 2.Qxe5#
- 1...Be4
- 2.Rf5#
- 1...Bd5
- 2.Re4#
- 1...Se3
- 2.Rg5#
- 1...Rxb2
- Tries
- 1.Sd2?
- threat
- 2.Rc4#
- 1...Rxe5+
- 2.Qxe5#
- 1...Rxd2
- 2.Rh5#
- 1...Be4
- 2.Rf5#
- 1...Bd5
- 2.Re4#
- 1...Se3
- 2.Rg5#
- 1...Re4!
- threat
- 1.Sa3?
- threat
- 2.Rc4#
- 1...Rxe5+
- 2.Qxe5#
- 1...Rc2
- 2.Rh5#
- 1...Be4
- 2.Rf5#
- 1...Bd5
- 2.Re4#
- 1...Se3
- 2.Rg5#
- 1...Re4!
- threat
- 1.Se3?
- threat
- 2.Sf5#
- 2.Rc4#
- 2.Re4#
- 2.Rd5#
- 2.Rh5#
- 2.Re6#
- 1...Rxb2
- 2.Rc4#
- 2.Re4#
- 2.Rd5#
- 2.Rh5#
- 2.Re6#
- 1...Sxd3
- 2.Sf5#
- 2.Rxd3#
- 2.Rc4#
- 2.Re4#
- 2.Rd5#
- 1...Sxe3
- 2.Rg5#
- 1...Qh2
- 2.Sf5#
- 2.Rc4#
- 2.Re4#
- 2.Rd5#
- 1...Rc2
- 2.Sf5#
- 2.Re4#
- 2.Rd5#
- 2.Rh5#
- 2.Re6#
- 1...Be4
- 2.Rxe4#
- 2.Rd5#
- 2.Rf5#
- 1...Bg4
- 2.Rc4#
- 2.Re4#
- 2.Rd5#
- 1...Bd5
- 2.Re4#
- 2.Rxd5#
- 1...Bh5
- 2.Rc4#
- 2.Re4#
- 2.Rd5#
- 1...Bc6
- 2.Rc4#
- 2.Re4#
- 2.Rd5#
- 1...Bb7
- 2.Rc4#
- 2.Re4#
- 2.Rd5#
- 1...Ba8
- 2.Rc4#
- 2.Re4#
- 2.Rd5#
- 1...Se1
- 2.Sf5#
- 2.Rc4#
- 2.Re4#
- 2.Rd5#
- 1...Sf4
- 2.Sf5#
- 2.Rc4#
- 2.Re4#
- 1...Sh4
- 2.Rc4#
- 2.Re4#
- 2.Rd5#
- 1...Rxe3!
- threat
- 1.Sb6?
- threat
- 2.Rc4#
- 2.Rxe2#
- 2.Re3#
- 2.Re4#
- 1...Rxe5+
- 2.Qxe5#
- 1...Rxb2
- 2.Rc4#
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Rd5#
- 2.Rh5#
- 2.Re6#
- 1...Sxd3
- 2.Rxd3#
- 2.Rc4#
- 2.Re4#
- 1...Qh2
- 2.Rc4#
- 2.Re4#
- 1...Re1
- 2.Rc4#
- 2.Rxe1#
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 1...Rc2
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Rd5#
- 2.Rh5#
- 2.Re6#
- 1...Rd2
- 2.Rc4#
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Rd5#
- 2.Rh5#
- 2.Re6#
- 1...Re3
- 2.Rc4#
- 2.Rxe3#
- 2.Re4#
- 1...Re4
- 2.Rxe4#
- 1...Be4
- 2.Rxe4#
- 2.Rd5#
- 2.Rf5#
- 1...Bg4
- 2.Rc4#
- 2.Re4#
- 1...Bd5
- 2.Re4#
- 1...Bh5
- 2.Rc4#
- 2.Re4#
- 1...Bc6
- 2.Rc4#
- 2.Re4#
- 1...Bb7
- 2.Rc4#
- 2.Re4#
- 1...Ba8
- 2.Rc4#
- 2.Re4#
- 1...Se1
- 2.Rc4#
- 2.Re4#
- 1...Se3
- 2.Re4#
- 2.Rd5#
- 2.Rg5#
- 1...Sf4
- 2.Rc4#
- 2.Re4#
- 1...Sh4
- 2.Rc4#
- 2.Re4#
- 1...cxb6!
- threat
- 1.Sd6?
- threat
- 2.Sf5#
- 2.Rc4#
- 1...Rxe5+
- 2.Qxe5#
- 1...Rxb2
- 2.Rc4#
- 2.Rf5#
- 2.Rh5#
- 1...Rc2
- 2.Sf5#
- 2.Rf5#
- 2.Rh5#
- 1...Re4
- 2.Sf5#
- 1...Be4
- 2.Rf5#
- 1...Bg4
- 2.Rc4#
- 1...Bd5
- 2.Re4#
- 1...Bh5
- 2.Rc4#
- 1...Bc6
- 2.Rc4#
- 1...Bb7
- 2.Rc4#
- 1...Ba8
- 2.Rc4#
- 1...Se3
- 2.Rg5#
- 1...Sh4
- 2.Rc4#
- 1...cxd6!
- threat
- 1.Be3+?
- 1...Sxe3
- 2.Rg5#
- 1...Rxe3!
- 1...Sxe3
- 1.Re6+?
- 1...Re5
- 2.Qxe5#
- 1...Kd5!
- 1...Re5
- 1.Sd2?
- Keys
- 1.Sa5!
- threat
- 2.Rc4#
- 1...Rxe5+
- 2.Qxe5#
- 1...Rc2
- 2.Rh5#
- 1...Re4
- 2.Sc6#
- 1...Be4
- 2.Rf5#
- 1...Bd5
- 2.Re4#
- 1...Se3
- 2.Rg5#
- threat
- 1.Sa5!
Anticipated by 22107(1924)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(c);CHECK,OGATE,P_SPINR(c),XR(F)::QAB1(I),XR(c)
- B(f);N_PINR(F),SBLOCK::QAB(I)+R(F)
- B(f);SBLOCK::QAB(I)+R(F),DCHECK
- S(e);N_PINR(F)::QAB(I)+R(F)
- Tries
- Try
- S(D);
- Threat
- R1(B)
- Vars
- R(c);CHECK,OGATE,P_SPINR(c),XR(F)::QAB1(I),XR(c)
- R(c);N_PINR(F),XS(D)::QAB(I)+R(F)
- B(f);N_PINR(F)::QAB(I)+R(F)
- B(f);SBLOCK::QAB(I)+R(F),DCHECK
- S(e);N_PINR(F),SBLOCK::QAB(I)+R(F)
- Refutation
- R(c);
- Try
- S(D);
- Threat
- R1(B)
- Vars
- R(c);CHECK,OGATE,P_SPINR(c),XR(F)::QAB1(I),XR(c)
- R(c);N_PINR(F)::QAB(I)+R(F)
- B(f);N_PINR(F),SBLOCK::QAB(I)+R(F)
- B(f);SBLOCK::QAB(I)+R(F),DCHECK
- S(e);N_PINR(F),SBLOCK::QAB(I)+R(F)
- Refutation
- R(c);
- Try
- S(D);N_SPINR(F)
- Threat
- DUALS(6)
- Vars
- S(e);SBLOCK,XS(D)::QAB(I)+R(F)
- Refutation
- R(c);P_PINR(F),XS(D)
- Try
- S(D);
- Threat
- DUALS(4)
- Vars
- R(c);CHECK,OGATE,P_SPINR(c),XR(F)::QAB1(I),XR(c)
- R(c);::QAB(I)+R(F),DCHECK,XR(c)
- B(f);::QAB(I)+R(F),DCHECK
- Refutation
- P(i);XS(D)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- R(c);CHECK,OGATE,P_SPINR(c),XR(F)::QAB1(I),XR(c)
- R(c);::S(D)
- B(f);N_PINR(F)::QAB(I)+R(F)
- B(f);::R1(B)
- B(f);SBLOCK::QAB(I)+R(F),DCHECK
- S(e);N_PINR(F),SBLOCK::QAB(I)+R(F)
- S(e);::R1(B)
- Refutation
- P(i);XS(D)
- Try
- B(G);CHECK,N_SPINR(F)
- Vars
- S(e);XB(G)::QAB(I)+R(F)
- Refutation
- R(c);P_PINR(F),XB(G)
- Try
- R(F);CHECK
- Vars
- R(c);N_GUARD,P_SPINR(c)::QAB1(I),XR(c)
- Refutation
- K(g);P-FLIGHT
- Try
- Actual
- S(D);
- Threat
- R1(B)
- Vars
- R(c);CHECK,OGATE,P_SPINR(c),XR(F)::QAB1(I),XR(c)
- R(c);N_PINR(F)::QAB(I)+R(F)
- R(c);S_CUTB(f)::S(D)
- B(f);N_PINR(F),SBLOCK::QAB(I)+R(F)
- B(f);SBLOCK::QAB(I)+R(F),DCHECK
- S(e);N_PINR(F),SBLOCK::QAB(I)+R(F)
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).