MESON Chess Problem Database
Problem Display
PID: 241384 (1b1n1rr1/3P1p1p/pN3Rb1/1PP1k1Bp/1n1p3P/3p2KQ/3N4/8 w - - 0 1)
Hjelle, David
Norsk Sjakkblad, 1938
#2
10 + 13
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Be4
- 2.Sdc4#
- 1...Bf5
- 2.Qxf5#
- 1...Sd5
- 2.Sbc4#
- 1...Be4
- Tries
- 1.Kf2?
- threat
- 2.Qh2#
- 2.Qg3#
- 1...Sd5
- 2.Sbc4#
- 1...Se6!
- threat
- 1.Kh2?
- threat
- 2.Qg3#
- 1...Sd5
- 2.Sbc4#
- 1...Se6!
- threat
- 1.Kf3?
- threat
- 2.Sdc4#
- 2.Qh2#
- 2.Qg3#
- 1...axb5
- 2.Qh2#
- 2.Qg3#
- 1...Se6
- 2.Sdc4#
- 1...Sd5
- 2.Sdc4#
- 2.Sbc4#
- 1...Be4+!
- threat
- 1.Rf2?
- threat
- 2.Bf6#
- 1...Bf5
- 2.Qxf5#
- 1...Be4
- 2.Sdc4#
- 1...Sd5
- 2.Sbc4#
- 1...f6
- 2.Bf4#
- 1...f5!
- threat
- 1.Rf3?
- threat
- 2.Bf6#
- 1...Bf5
- 2.Qxf5#
- 1...Be4
- 2.Sdc4#
- 1...Sd5
- 2.Sbc4#
- 1...f6
- 2.Bf4#
- 1...f5!
- threat
- 1.Rf4?
- threat
- 2.Sf3#
- 2.Sdc4#
- 2.Bf6#
- 1...axb5
- 2.Sf3#
- 2.Bf6#
- 1...Bf5
- 2.Qxf5#
- 1...Be4
- 2.Sdc4#
- 2.Rxe4#
- 1...Sd5
- 2.Sf3#
- 2.Sdc4#
- 2.Sbc4#
- 1...f6
- 2.Sf3#
- 2.Sdc4#
- 1...f5!
- threat
- 1.Rd6?
- threat
- 2.Sbc4#
- 2.Bf4#
- 2.Bf6#
- 1...axb5
- 2.Bf4#
- 2.Bf6#
- 1...Se6
- 2.Sbc4#
- 1...Be4
- 2.Sdc4#
- 2.Sbc4#
- 1...Bf5
- 2.Sbc4#
- 1...Sd5
- 2.Sbc4#
- 2.Rxd5#
- 1...f5
- 2.Sbc4#
- 2.Bf4#
- 1...f6
- 2.Sbc4#
- 2.Bf4#
- 1...Bxd6!
- threat
- 1.Qf1?
- threat
- 2.Qf4#
- 1...Sd5
- 2.Sbc4#
- 1...Se6!
- threat
- 1.Qg2?
- threat
- 2.Sdc4#
- 2.Sbc4#
- 1...Be4
- 2.Sdc4#
- 2.Qxe4#
- 1...axb5!
- threat
- 1.Qg4?
- threat
- 2.Sf3#
- 2.Sdc4#
- 2.Qf4#
- 1...axb5
- 2.Sf3#
- 2.Qf4#
- 1...Se6
- 2.Sf3#
- 2.Sdc4#
- 1...Be4
- 2.Sdc4#
- 2.Qxe4#
- 2.Qf4#
- 1...Sd5
- 2.Sf3#
- 2.Sdc4#
- 2.Sbc4#
- 1...hxg4!
- threat
- 1.Qh1?
- threat
- 2.Sdc4#
- 2.Sbc4#
- 1...Be4
- 2.Sdc4#
- 2.Qxe4#
- 1...axb5!
- threat
- 1.Qh2?
- threat
- 2.Kf2#
- 2.Kg2#
- 2.Kf3#
- 2.Kh3#
- 1...Be4
- 2.Kf2#
- 2.Kh3#
- 2.Sdc4#
- 1...Bf5
- 2.Kf2#
- 2.Kg2#
- 2.Kf3#
- 1...Sd5
- 2.Sbc4#
- 1...Se6!
- threat
- 1.Kf2?
- Keys
- 1.Rf1!
- threat
- 2.Bf6#
- 1...Bf5
- 2.Qxf5#
- 1...f5
- 2.Re1#
- 1...Be4
- 2.Sdc4#
- 1...Sd5
- 2.Sbc4#
- 1...f6
- 2.Bf4#
- threat
- 1.Rf1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- B(g);P_PINB(G),SBLOCK::S(A)
- B(g);N_GUARD,P_PINB(G)::QAR1(C),XB(g)
- S(b);SBLOCK::S(H)
- Tries
- Try
- K(B);S_FLIGHT
- Threat
- DUALS(2)
- Vars
- S(b);SBLOCK::S(H)
- Refutation
- S(k);
- Try
- K(B);S_FLIGHT
- Threat
- QAB(C)
- Vars
- S(b);SBLOCK::S(H)
- Refutation
- S(k);
- Try
- K(B);P-FLIGHT
- Threat
- DUALS(3)
- Vars
- S(k);::S(A)
- Refutation
- B(g);CHECK
- Try
- R(I);
- Threat
- B(G)
- Vars
- B(g);N_GUARD,P_PINB(G)::QAR1(C),XB(g)
- B(g);P_PINB(G),SBLOCK::S(A)
- S(b);SBLOCK::S(H)
- P(h);SBLOCK::B(G)
- Refutation
- P(h);
- Try
- R(I);
- Threat
- B(G)
- Vars
- B(g);N_GUARD,P_PINB(G)::QAR1(C),XB(g)
- B(g);P_PINB(G),SBLOCK::S(A)
- S(b);SBLOCK::S(H)
- P(h);SBLOCK::B(G)
- Refutation
- P(h);
- Try
- R(I);
- Threat
- DUALS(3)
- Vars
- B(g);N_GUARD,P_PINB(G)::QAR1(C),XB(g)
- Refutation
- P(h);
- Try
- R(I);
- Threat
- DUALS(3)
- Vars
- S(k);::S(H)
- B(g);P_PINB(G)::S(H)
- Refutation
- B(j);XR(I)
- Try
- Q(C);
- Threat
- QAB1(C)
- Vars
- S(b);SBLOCK::S(H)
- Refutation
- S(k);
- Try
- Q(C);
- Threat
- DUALS(2)
- Refutation
- P(f);XP(E)
- Try
- Q(C);
- Threat
- DUALS(3)
- Refutation
- P(e);XQ(C)
- Try
- Q(C);
- Threat
- DUALS(2)
- Refutation
- P(f);XP(E)
- Try
- Q(C);
- Threat
- DUALS(4)
- Vars
- S(b);SBLOCK::S(H)
- Refutation
- S(k);
- Try
- Actual
- R(I);
- Threat
- B(G)
- Vars
- B(g);N_GUARD,P_PINB(G)::QAR1(C),XB(g)
- P(h);S_CUTB(g)::R(I)
- B(g);P_PINB(G),SBLOCK::S(A)
- S(b);SBLOCK::S(H)
- P(h);SBLOCK::B(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).