MESON Chess Problem Database
Problem Display
PID: 11156 (8/2b1R3/2pR3B/1nq2p1B/1rn4Q/1b6/1N2PP2/1r2kNK1 w - - 0 1)
Hassberg, Eric Manfred
1st Comm., BCF 025. Ty., 1937-1938
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Qxf2+
- 2.Qxf2#
- 1...Qe3
- 2.fxe3#
- 1...Qxd6
- 2.f4#
- 1...Qd5
- 2.f3#
- 2.f4#
- 1...Qe5
- 2.f4#
- 1...Bd1
- 2.Sd3#
- 1...Sd2
- 2.Bxd2#
- 1...Sca3
- 2.Bd2#
- 1...Se3
- 2.f4#
- 1...Sa5
- 2.Bd2#
- 1...Se5
- 2.Bd2#
- 1...Sb6
- 2.Bd2#
- 1...Scxd6
- 2.Bd2#
- 1...Sd4
- 2.f3#
- 2.f4#
- 1...Qxf2+
- Tries
- 1.Sd2?
- threat
- 2.Sf3#
- 1...Qxf2+
- 2.Qxf2#
- 1...Sxd2
- 2.Bxd2#
- 1...Qe3
- 2.fxe3#
- 1...Qd5
- 2.f3#
- 1...Qe5
- 2.f4#
- 1...Se3
- 2.f4#
- 1...Sd4
- 2.f3#
- 1...Se5!
- threat
- 1.Se3?
- threat
- 2.Sg2#
- 2.f4#
- 1...Qxe3
- 2.fxe3#
- 1...Qxd6
- 2.Sg2#
- 1...Bxd6
- 2.Sg2#
- 1...Sxe3
- 2.f4#
- 1...Scxd6
- 2.Sg2#
- 1...Sbxd6
- 2.Sg2#
- 1...Qd4
- 2.Sg2#
- 1...Sd4
- 2.Sg2#
- 1...f4
- 2.Sg2#
- 1...Qd5!
- threat
- 1.Be3?
- threat
- 2.f4#
- 1...Qxe3
- 2.fxe3#
- 1...f4!
- threat
- 1.Rd1+?
- 1...Bxd1
- 2.Sd3#
- 1...Rxd1!
- 1...Bxd1
- 1.Re3?
- threat
- 2.f3#
- 2.f4#
- 1...Qxe3
- 2.fxe3#
- 1...Qxd6
- 2.f4#
- 1...Bxd6
- 2.f4#
- 1...Sxb2
- 2.f4#
- 1...Sxe3
- 2.f4#
- 1...Scxd6
- 2.f4#
- 1...Qd4
- 2.f4#
- 1...Qe5
- 2.f4#
- 1...Sd2
- 2.f4#
- 1...Sca3
- 2.f4#
- 1...Sa5
- 2.f4#
- 1...Se5
- 2.f4#
- 1...Sb6
- 2.f4#
- 1...f4
- 2.f3#
- 1...Bd8!
- threat
- 1.e3?
- threat
- 2.Sd3#
- 2.f4#
- 1...Qxe3
- 2.Sd3#
- 2.fxe3#
- 1...Qxd6
- 2.f4#
- 1...Sxb2
- 2.f4#
- 1...Qd4
- 2.f4#
- 1...Qd5
- 2.f4#
- 1...Rd1
- 2.f4#
- 1...Bc2
- 2.f4#
- 1...Se5
- 2.f4#
- 1...f4
- 2.Sd3#
- 1...Rxb2!
- threat
- 1.Sd2?
- Keys
- 1.Sh2!
- threat
- 2.Sf3#
- 1...Qxf2+
- 2.Qxf2#
- 1...Qe3
- 2.fxe3#
- 1...Qd5
- 2.f3#
- 1...Qe5
- 2.f4#
- 1...Sd2
- 2.Bxd2#
- 1...Se3
- 2.f4#
- 1...Se5
- 2.Bd2#
- 1...Sd4
- 2.f3#
- threat
- 1.Sh2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- Q(g);CHECK,OGATE,P_SPINQ(g),XP(E)::QAB1(F),XQ(g)
- Q(g);::QAB(F)+P(E),XQ(g)
- Q(g);N_PINP(E),XR(H)::QAB(F)+P(E)
- Q(g);N_PINP(E)::QAB(F)+P(E)
- B(c);SBLOCK::S(C)
- S(e);N_GUARD::B(I),XS(e)
- S(e);N_GUARD::B(I)
- S(e);N_PINP(E)::QAB(F)+P(E)
- S(e);N_GUARD,XR(H)::B(I)
- Tries
- Try
- S(A);
- Threat
- S(A)
- Vars
- Q(g);CHECK,OGATE,P_SPINQ(g),XP(E)::QAB1(F),XQ(g)
- S(e);OGATE,XS(A)::B(I),XS(e)
- Q(g);::QAB(F)+P(E),XQ(g)
- Q(g);N_PINP(E)::QAB(F)+P(E)
- S(e);N_PINP(E)::QAB(F)+P(E)
- S(f);N_PINP(E)::QAB(F)+P(E)
- Refutation
- S(e);
- Try
- S(A);N_SPINP(E)
- Threat
- DUALS(2)
- Vars
- Q(g);OGATE,P_PINP(E),XS(A)::QAB(F)+P(E),XQ(g)
- Q(g);XR(H)::S(A)
- B(j);XR(H)::S(A)
- S(e);XS(A)::QAB(F)+P(E)
- S(e);XR(H)::S(A)
- S(f);XR(H)::S(A)
- Q(g);::S(A)
- S(f);::S(A)
- P(h);::S(A)
- Refutation
- Q(g);
- Try
- B(I);N_SPINP(E)
- Threat
- QAB(F)+P(E)
- Vars
- Q(g);OGATE,P_PINP(E),XB(I)::QAB(F)+P(E),XQ(g)
- Refutation
- P(h);
- Try
- R(H);CHECK
- Vars
- B(c);SBLOCK,XR(H)::S(C)
- Refutation
- R(a);XR(H)
- Try
- R(J);N_SPINP(E)
- Threat
- DUALS(2)
- Vars
- Q(g);OGATE,P_PINP(E),XR(J)::QAB(F)+P(E),XQ(g)
- Q(g);XR(H)::QAB(F)+P(E)
- B(j);XR(H)::QAB(F)+P(E)
- S(e);XS(C)::QAB(F)+P(E)
- S(e);XR(J)::QAB(F)+P(E)
- S(e);XR(H)::QAB(F)+P(E)
- Q(g);::QAB(F)+P(E)
- S(e);::QAB(F)+P(E)
- P(h);::QAB(F)+P(E)
- Refutation
- B(j);
- Try
- P(D);N_SPINP(E)
- Threat
- DUALS(2)
- Vars
- Q(g);XR(H)::QAB(F)+P(E)
- S(e);XS(C)::QAB(F)+P(E)
- Q(g);::QAB(F)+P(E)
- R(a);::QAB(F)+P(E)
- B(c);::QAB(F)+P(E)
- S(e);::QAB(F)+P(E)
- P(h);::S(C)
- Refutation
- R(a);XS(C)
- Try
- Actual
- S(A);
- Threat
- S(A)
- Vars
- Q(g);CHECK,OGATE,P_SPINQ(g),XP(E)::QAB1(F),XQ(g)
- Q(g);::QAB(F)+P(E),XQ(g)
- Q(g);N_PINP(E)::QAB(F)+P(E)
- S(e);N_GUARD::B(I),XS(e)
- S(e);N_PINP(E)::QAB(F)+P(E)
- S(e);N_GUARD::B(I)
- S(f);N_PINP(E)::QAB(F)+P(E)
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).