MESON Chess Problem Database
Problem Display
PID: 231372 (1B1N1K2/8/1k3NRn/R7/PP6/3n4/5r2/1bb2B2 w - - 0 1)
Mulder, H
Noord-Hollandsch Dagblad, 1927
#2
9 + 6
| 6490 | yacpdb | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ra2
- 2.Se4#
- 2.Sg4#
- 2.Sd5#
- 2.Sh5#
- 2.Sd7#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 1...Rb2
- 2.Se4#
- 2.Sg4#
- 2.Sd5#
- 2.Sh5#
- 2.Sd7#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 1...Rc2
- 2.Sd5#
- 2.Sd7#
- 1...Rd2
- 2.Se4#
- 2.Sg4#
- 2.Sd5#
- 2.Sh5#
- 2.Sd7#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 1...Re2
- 2.Se4#
- 2.Sd5#
- 2.Sd7#
- 1...Rg2
- 2.Sg4#
- 2.Sd5#
- 2.Sd7#
- 1...Rh2
- 2.Se4#
- 2.Sg4#
- 2.Sd5#
- 2.Sh5#
- 2.Sd7#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 1...Rxf6+
- 2.Rxf6#
- 1...Bf4
- 2.Sd5#
- 2.Sd7#
- 1...Se1
- 2.Ra6#
- 1...Sb2
- 2.Ra6#
- 1...Sf4
- 2.Sd5#
- 2.Sd7#
- 2.Ra6#
- 1...Se5
- 2.Ra6#
- 1...Sf5
- 2.Sd5#
- 2.Sd7#
- 1...Sf7
- 2.Sd5#
- 2.Sd7#
- 1...Ra2
- Tries
- 1.Ke8?
- threat
- 2.Sd5#
- 2.Sd7#
- 1...Re2+
- 2.Se4#
- 1...Rxf6
- 2.Rxf6#
- 1...Sxb4!
- threat
- 1.Bxd3?
- threat
- 2.Ra6#
- 1...Rxf6+
- 2.Rxf6#
- 1...Bxd3!
- threat
- 1.Rc5?
- threat
- 2.Rc6#
- 1...Rxf6+
- 2.Rxf6#
- 1...Ka6
- 2.Rc6#
- 1...Sxc5
- 2.a5#
- 1...Rc2
- 2.Se4#
- 2.Sg4#
- 2.Sd5#
- 2.Sh5#
- 2.Sd7#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 1...Se5
- 2.a5#
- 1...Sxb4!
- threat
- 1.Re5?
- threat
- 2.Re6#
- 1...Rxf6+
- 2.Rxf6#
- 1...Ka6
- 2.Re6#
- 1...Sxb4
- 2.a5#
- 1...Sxe5
- 2.a5#
- 1...Rc2
- 2.Sd5#
- 2.Sd7#
- 1...Re2
- 2.Se4#
- 2.Sg4#
- 2.Sd5#
- 2.Sh5#
- 2.Sd7#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 1...Bf4
- 2.Se4#
- 2.Sg4#
- 2.Sd5#
- 2.Sh5#
- 2.Sd7#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 1...Sf4
- 2.Sd5#
- 2.Sd7#
- 2.a5#
- 1...Sc5
- 2.a5#
- 1...Sf5
- 2.Sd5#
- 2.Sd7#
- 1...Sf7
- 2.Sd5#
- 2.Sd7#
- 1...Ba2!
- threat
- 1.Rf5?
- threat
- 2.Se4#
- 2.Sg4#
- 2.Sd5#
- 2.Sh5#
- 2.Sd7#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 1...Ka6
- 2.Se4#
- 2.Sg4#
- 2.Sd5#
- 2.Sh5#
- 2.Sd7#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 1...Sxb4
- 2.Sd7#
- 2.a5#
- 1...Sxf5
- 2.Sd5#
- 2.Sd7#
- 1...Rc2
- 2.Sd5#
- 2.Sd7#
- 1...Re2
- 2.Se4#
- 2.Sd5#
- 2.Sd7#
- 1...Rg2
- 2.Sg4#
- 2.Sd5#
- 2.Sd7#
- 1...Ba2
- 2.Sd5#
- 2.Sd7#
- 1...Bb2
- 2.Sd5#
- 2.Sd7#
- 1...Bf4
- 2.Sd5#
- 2.Sd7#
- 1...Bg5
- 2.Sd5#
- 2.Sd7#
- 1...Sf4
- 2.Sd5#
- 2.Sd7#
- 2.a5#
- 1...Sc5
- 2.Sd5#
- 2.Sd7#
- 2.a5#
- 1...Se5
- 2.Sd5#
- 2.Sd7#
- 2.a5#
- 1...Sg4
- 2.Sxg4#
- 2.Sd5#
- 2.Sd7#
- 1...Sf7
- 2.Sd5#
- 2.Sd7#
- 1...Sg8
- 2.Sd5#
- 2.Sd7#
- 2.Sxg8#
- 1...Rxf5!
- threat
- 1.Rg7?
- threat
- 2.Ba7#
- 2.Bc7#
- 2.Rb7#
- 1...Sxb4
- 2.Bc7#
- 1...Rc2
- 2.Sd5#
- 2.Sd7#
- 2.Ba7#
- 2.Rb7#
- 1...Bf4
- 2.Sd5#
- 2.Sd7#
- 2.Ba7#
- 2.Rb7#
- 1...Sc5
- 2.Ba7#
- 2.Bc7#
- 1...Sf7
- 2.Sd5#
- 2.Sd7#
- 1...Rxf6+!
- threat
- 1.Ke8?
- Keys
- 1.Rd5!
- threat
- 2.Rd6#
- 1...Rxf6+
- 2.Rxf6#
- 1...Ka6
- 2.Rd6#
- 1...Sxb4
- 2.a5#
- 1...Rc2
- 2.Sd7#
- 1...Bf4
- 2.Sd7#
- 1...Se5
- 2.a5#
- 1...Sf5
- 2.Sd7#
- 1...Sf7
- 2.Sd7#
- threat
- 1.Rd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 6
- REMOVED MATES = 2
- Sets
- R(c);CHECK,OGATE,P_SPINR(c),XS(E)::R(F),XR(c)
- S(d);::R1(D)
- Tries
- Try
- K(I);N_SPINS(E),P-FLIGHT
- Threat
- DUALS(2)
- Vars
- R(c);CHECK,N_GUARD::R(F)+S(E)
- R(c);OGATE,P_SPINR(c),XS(E)::R(F),XR(c)
- Refutation
- S(d);XP(C)
- Try
- B(A);XS(d)
- Threat
- R1(D)
- Vars
- R(c);CHECK,OGATE,P_SPINR(c),XS(E)::R(F),XR(c)
- Refutation
- B(a);XB(A)
- Try
- R(D);
- Threat
- R1(D)
- Vars
- R(c);CHECK,OGATE,P_SPINR(c),XS(E)::R(F),XR(c)
- K(e);P-FLIGHT,P_SPINS(d)::R(D)
- S(d);XR(D)::P(B)
- S(d);::P(B)
- Refutation
- S(d);XP(C)
- Try
- R(D);
- Threat
- R(D)
- Vars
- R(c);CHECK,OGATE,P_SPINR(c),XS(E)::R(F),XR(c)
- K(e);P-FLIGHT,P_SPINS(d)::R(D)
- S(d);XP(C)::P(B)
- S(d);XR(D)::P(B)
- S(d);::P(B)
- Refutation
- B(a);
- Try
- R(D);N_SPINS(E)
- Threat
- DUALS(8)
- Refutation
- R(c);P_PINS(E),XR(D)
- Try
- R(F);
- Threat
- DUALS(3)
- Vars
- S(d);XP(C)::B(G)
- Refutation
- R(c);CHECK,XS(E)
- Try
- Actual
- R(D);
- Threat
- R(D)
- Vars
- R(c);CHECK,OGATE,P_SPINR(c),XS(E)::R(F),XR(c)
- K(e);P-FLIGHT,P_SPINS(d)::R(D)
- S(d);XP(C)::P(B)
- R(c);N_PINS(E)::R(F)+S(E),DCHECK
- B(b);N_PINS(E)::R(F)+S(E),DCHECK
- S(d);::P(B)
- S(f);N_PINS(E)::R(F)+S(E),DCHECK
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).