MESON Chess Problem Database
Problem Display
PID: 139345 (r5q1/1Pn1p1n1/pBB1p2p/K3Q2r/1p1P3b/2N5/b2PNk2/2R5 w - - 0 1)
Ellerman, Arnoldo
Algemeen Handelsblad, 1917
#2
10 + 13
SOLUTION
- SOUND
- Sets
- 1...Rxe5+
- 2.dxe5#
- 1...Bg5
- 2.Qg3#
- 1...Sb5
- 2.Qh2#
- 2.Qf4#
- 2.Qe3#
- 1...Sf5
- 2.Qf4#
- 1...Rxe5+
- Tries
- 1.Be4?
- threat
- 2.d5#
- 1...Bd5
- 2.Qh2#
- 2.Qf4#
- 1...Bg5
- 2.Qg3#
- 1...Sb5
- 2.Qh2#
- 2.Qf4#
- 1...Sd5
- 2.Qh2#
- 1...Sf5
- 2.Qf4#
- 1...bxc3!
- threat
- 1.d5+?
- 1...Kf3
- 2.Qe4#
- 1...Kg2!
- 1...Kf3
- 1.Be4?
- Keys
- 1.Bh1!
- threat
- 2.d5#
- 1...Rxe5+
- 2.dxe5#
- 1...Bd5
- 2.Qe3#
- 1...Bg5
- 2.Qg3#
- 1...Sb5
- 2.Qh2#
- 2.Qf4#
- 2.Qe3#
- 1...Sd5
- 2.Qh2#
- 1...Sf5
- 2.Qf4#
- threat
- 1.Bh1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(e);CHECK,OGATE,XQ(G)::B(H)+P(E),XR(e)
- B(d);N_PINQ(G)::QAB1(G)
- S(k);N_PINQ(G)::QAR2(G)
- Tries
- Try
- B(I);
- Threat
- B(H)+P(E)
- Vars
- B(d);N_PINQ(G)::QAB1(G)
- S(i);N_PINQ(G)::QAR2(G)
- S(k);N_PINQ(G)::QAR2(G)
- Refutation
- P(c);XS(D)
- Try
- P(E);CHECK,N_SPINQ(G)
- Vars
- K(b);P-FLIGHT::QAB1(G)
- Refutation
- K(b);P-FLIGHT
- Try
- Actual
- B(I);
- Threat
- B(H)+P(E)
- Vars
- R(e);CHECK,OGATE,XQ(G)::B(H)+P(E),XR(e)
- B(a);N_PINQ(G)::QAB1(G)
- B(d);N_PINQ(G)::QAB1(G)
- S(i);N_PINQ(G)::QAR2(G)
- S(k);N_PINQ(G)::QAR2(G)
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).