MESON Chess Problem Database
Problem Display
PID: 72011 (1Q6/1n5B/3b1K2/3R2N1/2p2k2/2p1N2P/q2p2RP/2Brrn2 w - - 0 1)
Ellerman, Arnoldo
1st HM., Arbejder-Skak, 1954
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Rxe3
- 2.Rg4#
- 2.Rf5#
- 1...Be5+
- 2.Qxe5#
- 1...Sxe3
- 2.Rf2#
- 2.Rd4#
- 1...Rxe3
- Tries
- 1.Rg3?
- threat
- 2.Sg2#
- 2.Se6#
- 2.Rf3#
- 2.Rd4#
- 2.Rf5#
- 1...Be5+
- 2.Qxe5#
- 1...Rxe3
- 2.Rg4#
- 2.Rf5#
- 1...Sxe3
- 2.Se6#
- 2.Rf3#
- 2.Rd4#
- 1...Sxg3
- 2.Sg2#
- 1...dxc1Q
- 2.Se6#
- 2.Rf3#
- 2.Rf5#
- 1...dxc1S
- 2.Se6#
- 2.Rf3#
- 2.Rf5#
- 1...dxc1B
- 2.Se6#
- 2.Rf3#
- 2.Rf5#
- 1...dxc1R
- 2.Se6#
- 2.Rf3#
- 2.Rf5#
- 1...Qb1
- 2.Sg2#
- 2.Se6#
- 2.Rf3#
- 1...Qc2
- 2.Sg2#
- 2.Se6#
- 2.Rf3#
- 1...Qa5
- 2.Sg2#
- 2.Se6#
- 2.Rf3#
- 2.Rd4#
- 1...Qa7
- 2.Sg2#
- 2.Se6#
- 2.Rf3#
- 2.Rf5#
- 1...Re2
- 2.Se6#
- 2.Rf3#
- 2.Rd4#
- 2.Rf5#
- 1...Sc5
- 2.Sg2#
- 2.Rf3#
- 2.Rf5#
- 2.Qxd6#
- 1...Sd8
- 2.Sg2#
- 2.Rf3#
- 2.Rd4#
- 2.Rf5#
- 2.Qxd6#
- 1...Sxh2!
- threat
- 1.Rd3?
- threat
- 2.Sd5#
- 2.Rf2#
- 2.Rg4#
- 1...Be5+
- 2.Qxe5#
- 1...Rxe3
- 2.Rg4#
- 1...Sxh2
- 2.Sd5#
- 1...Sxe3
- 2.Rf2#
- 2.Rd4#
- 1...dxc1Q
- 2.Sd5#
- 2.Rg4#
- 1...dxc1S
- 2.Sd5#
- 2.Rg4#
- 1...dxc1B
- 2.Sd5#
- 2.Rg4#
- 1...dxc1R
- 2.Sd5#
- 2.Rg4#
- 1...Qa5
- 2.Rf2#
- 2.Rg4#
- 1...Re2
- 2.Sd5#
- 2.Rg4#
- 1...Sg3
- 2.Sd5#
- 2.Rf2#
- 2.hxg3#
- 1...cxd3!
- threat
- 1.Re5?
- threat
- 2.Sd5#
- 2.Rf2#
- 2.Rg4#
- 2.Re4#
- 1...Bxe5+
- 2.Qxe5#
- 1...Rxe3
- 2.Rg4#
- 2.Rf5#
- 1...Sxh2
- 2.Sd5#
- 2.Re4#
- 1...Sxe3
- 2.Rf2#
- 2.Re4#
- 1...dxc1Q
- 2.Rg4#
- 2.Re4#
- 1...dxc1S
- 2.Rg4#
- 2.Re4#
- 1...dxc1B
- 2.Rg4#
- 2.Re4#
- 1...dxc1R
- 2.Rg4#
- 2.Re4#
- 1...Qb1
- 2.Sd5#
- 2.Rf2#
- 2.Rg4#
- 1...Qc2
- 2.Sd5#
- 2.Rf2#
- 2.Rg4#
- 1...Qa5
- 2.Rf2#
- 2.Rg4#
- 2.Re4#
- 1...Re2
- 2.Sd5#
- 2.Rg4#
- 2.Re4#
- 1...Sg3
- 2.Sd5#
- 2.Rf2#
- 2.hxg3#
- 1...Sc5
- 2.Sd5#
- 2.Rf2#
- 2.Rg4#
- 1...Be7+!
- threat
- 1.Qxd6+?
- 1...Kxe3
- 2.Qe5#
- 1...Sxd6!
- 1...Kxe3
- 1.Qe8?
- threat
- 2.Rf2#
- 2.Rg4#
- 2.Rd4#
- 2.Rf5#
- 2.Qe4#
- 1...Be5+
- 2.Qxe5#
- 1...Rxe3
- 2.Rg4#
- 2.Rf5#
- 1...Sxh2
- 2.Rd4#
- 2.Rf5#
- 2.Qe4#
- 1...Sxe3
- 2.Rf2#
- 2.Rd4#
- 2.Qe4#
- 1...dxc1Q
- 2.Rg4#
- 2.Rf5#
- 2.Qe4#
- 1...dxc1S
- 2.Rg4#
- 2.Rf5#
- 2.Qe4#
- 1...dxc1B
- 2.Rg4#
- 2.Rf5#
- 2.Qe4#
- 1...dxc1R
- 2.Rg4#
- 2.Rf5#
- 2.Qe4#
- 1...Qb1
- 2.Rf2#
- 2.Rg4#
- 1...Qc2
- 2.Rf2#
- 2.Rg4#
- 1...Qa5
- 2.Rf2#
- 2.Rg4#
- 2.Rd4#
- 2.Qe4#
- 1...Qa7
- 2.Rf2#
- 2.Rg4#
- 2.Rf5#
- 2.Qe4#
- 1...Re2
- 2.Rg4#
- 2.Rd4#
- 2.Rf5#
- 2.Qe4#
- 1...Bc5
- 2.Rf2#
- 2.Rg4#
- 2.Rf5#
- 2.Qe4#
- 2.Qe5#
- 1...Sg3
- 2.Rf2#
- 2.hxg3#
- 1...Sc5
- 2.Rf2#
- 2.Rg4#
- 2.Rf5#
- 1...Be7+!
- threat
- 1.Rg3?
- Keys
- 1.Rdxd2!
- threat
- 2.Sd5#
- 1...Be5+
- 2.Qxe5#
- 1...Kxe3
- 2.Rd3#
- 1...Rxe3
- 2.Rg4#
- 1...Sxe3
- 2.Rgf2#
- 1...Qa5
- 2.Rdf2#
- threat
- 1.Rdxd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- B(i);CHECK,OGATE::QAB1(J),XB(i)
- Tries
- Try
- R(B);
- Threat
- DUALS(5)
- Vars
- B(i);CHECK,OGATE::QAB1(J),XB(i)
- S(c);XR(B)::S(D)
- Refutation
- S(c);XP(C)
- Try
- R(F);
- Threat
- DUALS(3)
- Vars
- B(i);CHECK,OGATE::QAB1(J),XB(i)
- R(b);XS(D)::R1(B)
- S(c);XP(C)::S(D)
- Refutation
- P(g);XR(F)
- Try
- R(F);N_PINB(i)
- Threat
- DUALS(4)
- Vars
- B(i);CHECK,OGATE,P_SPINB(i),XR(F)::QAB1(J),XB(i)
- Refutation
- B(i);CHECK
- Try
- Q(J);CHECK,XB(i)
- Vars
- K(h);P_SPINP(e),S_FLIGHT,XS(D)::QAR2(J)
- Refutation
- S(j);XQ(J)
- Try
- Q(J);N_PINB(i)
- Threat
- DUALS(5)
- Vars
- B(i);CHECK,N_GUARD::QAB1(J),XB(i)
- Refutation
- B(i);CHECK
- Try
- Actual
- R(F);XP(e)
- Threat
- S(D)
- Vars
- B(i);CHECK,OGATE::QAB1(J),XB(i)
- K(h);N_SPINB(i),OGATEB,S_FLIGHT,XS(D)::B(A)+R(F),DCHECK
- R(b);SBLOCK,XS(D)::R1(B)
- S(c);SBLOCK,XS(D)::R(B)
- Q(d);N_GUARD::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).