MESON Chess Problem Database
Problem Display
PID: 268454 (6Q1/1K4b1/1B6/1p4r1/8/p3R3/6kr/3NR1Nb w - - 0 1)
Sola, Pentti Olavi
Die Schwalbe, 1931
#2
7 + 7
SOLUTION
- SOUND
- Sets
- 1...Rg3
- 2.R3e2#
- 1...Rd5
- 2.Qxd5#
- 1...Re5
- 2.Qa2#
- 1...Rg6
- 2.Qd5#
- 1...Ba1
- 2.Qxg5#
- 1...Bb2
- 2.Qxg5#
- 1...Bc3
- 2.Qxg5#
- 1...Bd4
- 2.Qxg5#
- 1...Be5
- 2.Qd5#
- 1...Bh6
- 2.Qa2#
- 1...Bf8
- 2.Qa2#
- 2.Qxg5#
- 1...Bh8
- 2.Qxg5#
- 1...Rg3
- Tries
- 1.Sh3?
- threat
- 2.Sf4#
- 2.Rg1#
- 1...Rg3
- 2.Sf4#
- 1...Rg4
- 2.Rg1#
- 1...Rf5
- 2.Rg1#
- 1...Be5
- 2.Rg1#
- 2.Qd5#
- 1...Rxh3!
- threat
- 1.Rf3?
- threat
- 2.Se3#
- 2.Re2#
- 1...Rh3
- 2.Re2#
- 1...Rh4
- 2.Re2#
- 1...Rhh5
- 2.Re2#
- 1...Rh6
- 2.Re2#
- 1...Rh7
- 2.Re2#
- 1...Rh8
- 2.Re2#
- 1...Rc5
- 2.Se3#
- 1...Bd4
- 2.Qxg5#
- 1...Re5!
- threat
- 1.Qb3?
- threat
- 2.R3e2#
- 2.Qc2#
- 1...Rf5
- 2.Rg3#
- 1...Rc5
- 2.R3e2#
- 2.Rg3#
- 1...Rd5
- 2.R3e2#
- 2.Rg3#
- 2.Qxd5#
- 1...Re5
- 2.Rg3#
- 2.Qa2#
- 2.Qc2#
- 1...Bd4
- 2.Qc2#
- 1...Bc3!
- threat
- 1.Qc4?
- threat
- 2.Qf1#
- 2.Qe2#
- 2.Qc2#
- 2.Qe4#
- 1...Rh3
- 2.Qe2#
- 2.Qc2#
- 1...Rh4
- 2.Qe2#
- 2.Qc2#
- 1...Rhh5
- 2.Qe2#
- 2.Qc2#
- 1...Rh6
- 2.Qe2#
- 2.Qc2#
- 1...Rh7
- 2.Qe2#
- 2.Qc2#
- 1...Rh8
- 2.Qe2#
- 2.Qc2#
- 1...Rf5
- 2.Qg4#
- 1...Rg3
- 2.R3e2#
- 2.Qf1#
- 2.Qe2#
- 2.Qc2#
- 1...Rg4
- 2.Qf1#
- 2.Qe2#
- 2.Qc2#
- 2.Qxg4#
- 1...Rc5
- 2.Qf1#
- 2.Qe2#
- 2.Qe4#
- 2.Qg4#
- 1...Rd5
- 2.Qf1#
- 2.Qe2#
- 2.Qxd5#
- 2.Qe4#
- 2.Qg4#
- 1...Re5
- 2.Qf1#
- 2.Qa2#
- 2.Qe2#
- 2.Qc2#
- 2.Qg4#
- 1...Bc3
- 2.Qf1#
- 2.Qe2#
- 2.Qe4#
- 1...Bd4
- 2.Qf1#
- 2.Qe2#
- 2.Qc2#
- 1...bxc4!
- threat
- 1.Qd8?
- threat
- 2.Qxg5#
- 2.Qd2#
- 1...Rh3
- 2.Qd2#
- 1...Rh4
- 2.Qd2#
- 1...Rhh5
- 2.Qd2#
- 1...Rh6
- 2.Qd2#
- 1...Rh7
- 2.Qd2#
- 1...Rh8
- 2.Qd2#
- 1...Rg3
- 2.R3e2#
- 2.Qd2#
- 1...Rg4
- 2.Qd2#
- 1...Rc5
- 2.Qd2#
- 1...Rd5
- 2.Qxd5#
- 1...Re5
- 2.Qd2#
- 1...Rgh5
- 2.Qd2#
- 1...Rg6
- 2.Qd2#
- 2.Qd5#
- 1...Bc3
- 2.Qxg5#
- 1...Bd4
- 2.Qxg5#
- 1...Be5
- 2.Qd2#
- 2.Qd5#
- 1...Bf6
- 2.Qd2#
- 1...Bh6
- 2.Qd2#
- 1...Rf5!
- threat
- 1.Sh3?
- Keys
- 1.Bc7!
- threat
- 2.R3e2#
- 1...Re5
- 2.Qa2#
- 1...Rf5
- 2.Rg3#
- 1...Bd4
- 2.Qxg5#
- 1...Be5
- 2.Qd5#
- threat
- 1.Bc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 8
- Sets
- R(f);SBLOCK::R(D)
- R(f);N_GUARD,P_SPINB(g)::QAB(G),XR(f)
- R(f);P_SPINB(g)::QAR(G)
- R(f);N_GUARD::QAB(G)
- B(g);OGATE,P_SPINR(f)::QAR(G),XR(f)
- B(g);P_SPINR(f)::QAB(G)
- B(g);N_GUARD,P_SPINR(f)::QAR(G)
- Tries
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- R(f);::S(C)
- R(f);::R1(B)
- R(f);P_SPINB(g)::R1(B)
- Refutation
- R(c);XS(C)
- Try
- R(D);
- Threat
- DUALS(2)
- Vars
- R(c);::R(B)
- R(f);P_SPINB(g)::S(A)
- B(g);OGATE,P_SPINR(f)::QAR(G),XR(f)
- Refutation
- R(f);P_SPINB(g)
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- R(f);N_GUARD::R1(D)
- B(g);::QAR(G)
- Refutation
- B(g);
- Try
- Q(G);
- Threat
- DUALS(4)
- Vars
- R(f);N_GUARD::QAR2(G)
- Refutation
- P(e);XQ(G)
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- R(c);::QAR(G)
- R(f);::QAR(G)
- R(f);N_GUARD::QAB(G),XR(f)
- B(g);::QAR(G),XR(f)
- B(g);::QAR(G)
- Refutation
- R(f);
- Try
- Actual
- B(E);
- Threat
- R(D)
- Vars
- R(f);P_SPINB(g)::QAR(G)
- R(f);N_GUARD,P_SPINB(g)::R1(D)
- B(g);OGATE,P_SPINR(f)::QAR(G),XR(f)
- B(g);P_SPINR(f)::QAB(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).