MESON Chess Problem Database
Problem Display
PID: 54906 (5Q2/2N5/4p3/4P3/2N1k3/2pR1nnp/K1B1b1qB/5R2 w - - 0 1)
Pedersen, Eigil Palle
1st Prize, Wrobel JT, 1948
#2
9 + 8
| 3105 | FIDE Album (1945-1955) | 1964 |
SOLUTION
- SOUND
- Sets
- 1...Se1
- 2.Rf4#
- 2.Qf4#
- 2.Qa8#
- 1...Sg1
- 2.Rf4#
- 2.Qf4#
- 2.Qa8#
- 1...Sd2
- 2.Rf4#
- 2.Qf4#
- 2.Qa8#
- 1...Sxh2
- 2.Rf4#
- 2.Qf4#
- 2.Qa8#
- 1...Sd4
- 2.Rf4#
- 2.Re3#
- 2.Qf4#
- 1...Sh4
- 2.Rf4#
- 2.Qf4#
- 2.Qa8#
- 1...Sxe5
- 2.Sd6#
- 2.Rf4#
- 2.Qf4#
- 1...Sg5
- 2.Rf4#
- 2.Qf4#
- 2.Qa8#
- 1...Sxf1
- 2.Sd6#
- 2.Qf4#
- 1...Sh1
- 2.Sd6#
- 2.Qf4#
- 1...Sf5
- 2.Qa8#
- 1...Sh5
- 2.Sd6#
- 1...Se1
- Tries
- 1.Sb5?
- threat
- 2.Sxc3#
- 2.Sbd6#
- 2.Rd4#
- 1...Sd4
- 2.Sxc3#
- 2.Rxd4#
- 1...Sf5
- 2.Sxc3#
- 2.Rd4#
- 2.Qa8#
- 1...Bxd3!
- threat
- 1.Sxe6?
- threat
- 2.Sc5#
- 2.Rd4#
- 2.Qf4#
- 1...Sd4
- 2.Rxd4#
- 1...Qg1
- 2.Rd4#
- 2.Qf4#
- 1...Qf2
- 2.Rd4#
- 2.Qf4#
- 1...Sf5
- 2.Sc5#
- 2.Rd4#
- 2.Qa8#
- 1...Sh5
- 2.Sd6#
- 2.Sc5#
- 2.Rd4#
- 1...Bxd3!
- threat
- 1.Se8?
- threat
- 2.Sed6#
- 1...Sd4
- 2.Sf6#
- 1...Sf5
- 2.Sf6#
- 1...Bxd3!
- threat
- 1.Bxg3?
- threat
- 2.Sd6#
- 2.Qf4#
- 1...Bxd3
- 2.Qf4#
- 1...Qxg3!
- threat
- 1.Re1?
- threat
- 2.Rdd1#
- 2.Rd2#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Sxe5
- 2.Sd6#
- 1...Sd2
- 2.Rxd2#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Sd4
- 2.Re3#
- 1...Sxe1!
- threat
- 1.Rfxf3?
- threat
- 2.Rfe3#
- 2.Rf4#
- 2.Qf4#
- 2.Qa8#
- 1...Bxd3
- 2.Rf4#
- 2.Qf4#
- 1...Bxf3
- 2.Rd2#
- 1...Qf1
- 2.Rfe3#
- 2.Qf4#
- 2.Qa8#
- 1...Qg1
- 2.Rf4#
- 2.Qf4#
- 2.Qa8#
- 1...Qf2
- 2.Qf4#
- 2.Qa8#
- 1...Sf1
- 2.Sd6#
- 2.Rf4#
- 2.Qf4#
- 2.Qa8#
- 1...Sf5
- 2.Rf4#
- 2.Qa8#
- 1...Sh5
- 2.Sd6#
- 2.Rfe3#
- 2.Qa8#
- 1...Qxf3!
- threat
- 1.Rdxf3+?
- 1...Bd3
- 2.Rf4#
- 2.Qf4#
- 1...Kd4!
- 1...Bd3
- 1.Qg7?
- threat
- 2.Qg4#
- 1...Kf4
- 2.Rd4#
- 1...Kf5
- 2.Rdxf3#
- 1...Sxh2
- 2.Sd6#
- 1...Sxe5
- 2.Sd6#
- 2.Qxe5#
- 1...Sxf1
- 2.Sd6#
- 1...Se1
- 2.Sd6#
- 1...Sg1
- 2.Sd6#
- 1...Sd2
- 2.Sd6#
- 1...Sd4
- 2.Sd6#
- 2.Re3#
- 1...Sh4
- 2.Sd6#
- 1...Sg5
- 2.Sd6#
- 1...Sh1
- 2.Sd6#
- 1...Sh5
- 2.Sd6#
- 1...Sf5!
- threat
- 1.Sb5?
- Keys
- 1.Qg8!
- threat
- 2.Qg4#
- 1...Kf4
- 2.Rd4#
- 1...Kf5
- 2.Rdxf3#
- 1...Sxh2
- 2.Qa8#
- 1...Sxe5
- 2.Sd6#
- 1...Sxf1
- 2.Sd6#
- 1...Se1
- 2.Qa8#
- 1...Sg1
- 2.Qa8#
- 1...Sd2
- 2.Qa8#
- 1...Sd4
- 2.Re3#
- 1...Sh4
- 2.Qa8#
- 1...Sg5
- 2.Qa8#
- 1...Sh1
- 2.Sd6#
- 1...Sf5
- 2.Qa8#
- 1...Sh5
- 2.Sd6#
- threat
- 1.Qg8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 12
- REMOVED MATES = 0
- Sets
- S(e);SBLOCK::QAB(I)
- S(e);::S(F)
- Tries
- Try
- S(H);
- Threat
- DUALS(3)
- Refutation
- B(a);P_PINB(C),P_SPINB(a),XR(E)
- Try
- S(H);XP(h)
- Threat
- DUALS(3)
- Vars
- S(d);::B(C)+R(E),DCHECK,XS(d)
- Refutation
- B(a);P_PINB(C),P_SPINB(a),XR(E)
- Try
- S(H);
- Threat
- S(H)
- Vars
- S(d);::S(H)
- S(e);SBLOCK::S(H)
- Refutation
- B(a);P_PINB(C),P_SPINB(a),XR(E)
- Try
- B(D);XS(e)
- Threat
- DUALS(2)
- Vars
- B(a);P_PINB(C),P_SPINB(a),XR(E)::QAR1(I)
- Refutation
- Q(b);XB(D)
- Try
- R(A);P_PINB(a)
- Threat
- DUALS(6)
- Vars
- S(d);SBLOCK,XP(G)::S(F)
- S(d);SBLOCK::B(C)+R(E),DCHECK
- Refutation
- S(d);N_SPINB(a),XR(A)
- Try
- R(A);XS(d)
- Threat
- DUALS(4)
- Vars
- B(a);N_GUARD,P_PINB(C),XR(A)::B(C)+R(E)
- Refutation
- Q(b);XR(A)
- Try
- R(E);CHECK,XS(d)
- Refutation
- K(g);P-FLIGHT
- Try
- Q(I);
- Threat
- QAR2(I)
- Vars
- K(g);P-FLIGHT,P_SPINS(d)::R(E)
- K(g);P_SPINS(d),S_FLIGHT::B(C)+R(E),DCHECK,XS(d)
- S(d);XB(D)::S(F)
- S(e);XR(A)::S(F)
- S(d);::S(F)
- S(e);::S(F)
- Refutation
- S(e);
- Try
- Actual
- Q(I);
- Threat
- QAR2(I)
- Vars
- K(g);P-FLIGHT,P_SPINS(d)::R(E)
- K(g);P_SPINS(d),S_FLIGHT::B(C)+R(E),DCHECK,XS(d)
- S(d);XB(D)::QAB(I)
- S(d);SBLOCK,XP(G)::S(F)
- S(e);XR(A)::S(F)
- S(d);::QAB(I)
- S(d);SBLOCK::B(C)+R(E),DCHECK
- S(e);::S(F)
- S(e);SBLOCK::QAB(I)
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).