MESON Chess Problem Database
Problem Display
PID: 234063 (2KN4/P7/4N3/2Pk4/1PpB1P2/3B4/r6r/3Q2nn w - - 0 1)
Wirtanen, Erkki Aukusti
3rd Comm., Il Due Mosse 16. TT, 1962
#2
10 + 6
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rab2
- 2.a8Q#
- 2.a8B#
- 1...Rac2
- 2.a8Q#
- 2.a8B#
- 1...Rad2
- 2.a8Q#
- 2.a8B#
- 1...Rae2
- 2.a8Q#
- 2.a8B#
- 1...Raf2
- 2.a8Q#
- 2.a8B#
- 1...Rag2
- 2.a8Q#
- 2.a8B#
- 1...Rhb2
- 2.Qh5#
- 1...Rhc2
- 2.Qh5#
- 1...Rhd2
- 2.Qh5#
- 1...Rhf2
- 2.Qh5#
- 1...Rh5
- 2.Qxh5#
- 1...Sf3
- 2.Qxf3#
- 1...Sh3
- 2.Qf3#
- 1...c3
- 2.Qb3#
- 1...Rab2
- Tries
- 1.Bb1?
- threat
- 2.Sc7#
- 1...Rxa7
- 2.Bf2#
- 1...Rac2
- 2.a8Q#
- 2.a8B#
- 1...c3
- 2.Qb3#
- 1...Rad2
- 2.a8Q#
- 2.a8B#
- 1...Rhd2
- 2.Qh5#
- 1...Rh7
- 2.Bb2#
- 1...Rhc2!
- threat
- 1.Bxc4+?
- 1...Ke4
- 2.Qd3#
- 1...Kxc4!
- 1...Ke4
- 1.Bf5?
- threat
- 2.Sc7#
- 1...Rxa7
- 2.Bf2#
- 1...c3
- 2.Qb3#
- 1...Rad2
- 2.a8Q#
- 2.a8B#
- 1...Rh7
- 2.Bb2#
- 1...Rhd2!
- threat
- 1.Bh7?
- threat
- 2.Sc7#
- 1...Rxa7
- 2.Bf2#
- 1...c3
- 2.Qb3#
- 1...Rad2
- 2.a8Q#
- 2.a8B#
- 1...Rhd2
- 2.Qh5#
- 1...Rxh7!
- threat
- 1.Bxg1?
- threat
- 2.Sc7#
- 2.Qf3#
- 1...Rxa7
- 2.Qf3#
- 1...cxd3
- 2.Qxd3#
- 1...Rae2
- 2.Sc7#
- 2.a8Q#
- 2.a8B#
- 1...Raf2
- 2.a8Q#
- 2.a8B#
- 1...Rhe2
- 2.Sc7#
- 1...Rhf2
- 2.Qh5#
- 1...Rh3
- 2.Sc7#
- 1...Rh7
- 2.Bc2#
- 2.Qf3#
- 1...Sg3
- 2.Sc7#
- 1...Sf2!
- threat
- 1.Bb2?
- threat
- 2.Sc7#
- 1...Raxb2
- 2.a8Q#
- 2.a8B#
- 1...Rhxb2
- 2.Bc2#
- 2.Qh5#
- 1...cxd3
- 2.Qxd3#
- 1...Rh7
- 2.Bb1#
- 2.Bc2#
- 2.Bf5#
- 2.Bg6#
- 2.Bxh7#
- 1...c3
- 2.Qb3#
- 1...Rxa7!
- threat
- 1.Bf2?
- threat
- 2.Sc7#
- 2.Bc2#
- 1...Raxf2
- 2.a8Q#
- 2.a8B#
- 1...Rxa7
- 2.Bb1#
- 2.Bc2#
- 2.Bf5#
- 2.Bg6#
- 2.Bh7#
- 1...Rhxf2
- 2.Qh5#
- 1...cxd3
- 2.Qxd3#
- 1...Ra1
- 2.Sc7#
- 2.Bb1#
- 1...Rc2
- 2.Sc7#
- 2.Bxc2#
- 2.a8Q#
- 2.a8B#
- 1...Rd2
- 2.Sc7#
- 2.a8Q#
- 2.a8B#
- 1...Re2
- 2.Sc7#
- 2.a8Q#
- 2.a8B#
- 1...Ra3
- 2.Sc7#
- 1...Rh3
- 2.Sc7#
- 1...Rh7
- 2.Bc2#
- 1...Se2
- 2.Sc7#
- 1...Sf3
- 2.Sc7#
- 2.Qxf3#
- 1...c3
- 2.Sc7#
- 2.Qb3#
- 1...Sxf2!
- threat
- 1.Bc3?
- threat
- 2.Sc7#
- 1...cxd3
- 2.Qxd3#
- 1...Rh7
- 2.Bc2#
- 1...Rxa7!
- threat
- 1.Be3?
- threat
- 2.Sc7#
- 1...cxd3
- 2.Qxd3#
- 1...Rh7
- 2.Bc2#
- 1...Rxa7!
- threat
- 1.Be5?
- threat
- 2.Sc7#
- 1...cxd3
- 2.Qxd3#
- 1...Rh7
- 2.Bc2#
- 1...Rxa7!
- threat
- 1.Bf6?
- threat
- 2.Sc7#
- 1...cxd3
- 2.Qxd3#
- 1...Rh7
- 2.Bc2#
- 1...Rxa7!
- threat
- 1.Bg7?
- threat
- 2.Sc7#
- 1...cxd3
- 2.Qxd3#
- 1...Rxa7!
- threat
- 1.Bh8?
- threat
- 2.Sc7#
- 1...Rxh8
- 2.Bc2#
- 1...cxd3
- 2.Qxd3#
- 1...Rh7
- 2.Bc2#
- 1...Rxa7!
- threat
- 1.Qxg1?
- threat
- 2.Sc7#
- 2.Qg5#
- 1...Rxa7
- 2.Qg5#
- 1...Rae2
- 2.Sc7#
- 2.a8Q#
- 2.a8B#
- 1...Raf2
- 2.Qg5#
- 2.a8Q#
- 2.a8B#
- 1...Rag2
- 2.Sc7#
- 2.a8Q#
- 2.a8B#
- 1...Rhe2
- 2.Sc7#
- 1...Rhf2
- 2.Qg5#
- 1...Rhg2
- 2.Sc7#
- 1...Rh5
- 2.Sc7#
- 1...Rh7
- 2.Qg5#
- 1...Sf2
- 2.Qg5#
- 1...Sg3
- 2.Sc7#
- 1...cxd3!
- threat
- 1.Bb1?
- Keys
- 1.Bg6!
- threat
- 2.Sc7#
- 1...Rxa7
- 2.Bf2#
- 1...c3
- 2.Qb3#
- 1...Rad2
- 2.a8Q#
- 2.a8B#
- 1...Rhd2
- 2.Qh5#
- 1...Rh7
- 2.Bb2#
- threat
- 1.Bg6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- R(c);N_GUARD::P=Q
- R(d);N_GUARD::QAR(A)
- R(d);N_GUARD::QAR(A),XR(d)
- S(a);N_GUARD::QAB(A),XS(a)
- S(a);N_GUARD::QAB(A)
- P(e);OGATEB::QAB(A)
- Tries
- Try
- B(B);
- Threat
- S(G)
- Vars
- R(c);N_GUARD,XP(H)::QAR(A)+B(D)
- R(c);N_GUARD::P=Q
- P(e);OGATEB::QAB(A)
- R(d);N_GUARD::QAR(A)
- R(d);N_GUARD::QAR(A)+B(D)
- Refutation
- R(d);
- Try
- B(B);CHECK,XP(e)
- Vars
- K(f);S_FLIGHT::QAB1(A)
- Refutation
- K(f);S_FLIGHT,XB(B)
- Try
- B(B);
- Threat
- S(G)
- Vars
- R(c);N_GUARD,XP(H)::QAR(A)+B(D)
- P(e);OGATEB::QAB(A)
- R(c);N_GUARD::P=Q
- R(d);N_GUARD::QAR(A)+B(D)
- Refutation
- R(d);
- Try
- B(B);
- Threat
- S(G)
- Vars
- R(c);N_GUARD,XP(H)::QAR(A)+B(D)
- P(e);OGATEB::QAB(A)
- R(c);N_GUARD::P=Q
- R(d);N_GUARD::QAR(A)
- Refutation
- R(d);XB(B)
- Try
- B(D);XS(a)
- Threat
- DUALS(2)
- Vars
- R(c);XP(H)::QAB(A)
- P(e);OGATE,P_SPINP(e),XB(B)::QAR2(A),XP(e)
- R(c);N_GUARD::P=Q
- R(d);::S(G)
- R(d);N_GUARD::QAR(A)
- S(b);::S(G)
- Refutation
- S(b);
- Try
- B(D);
- Threat
- S(G)
- Vars
- R(c);N_GUARD,XB(D)::P=Q
- P(e);OGATE,P_SPINP(e),XB(B)::QAR2(A),XP(e)
- P(e);OGATEB::QAB(A)
- Refutation
- R(c);XP(H)
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(c);N_GUARD,XB(D)::P=Q
- R(d);N_GUARD,XB(D)::QAR(A)
- P(e);OGATE,P_SPINP(e),XB(B)::QAR2(A),XP(e)
- R(c);::S(G)
- R(d);::S(G)
- R(d);::QAR(A)+B(B)
- S(a);::S(G)
- Refutation
- S(b);XB(D)
- Try
- B(D);
- Threat
- S(G)
- Vars
- P(e);OGATE,P_SPINP(e),XB(B)::QAR2(A),XP(e)
- R(d);N_GUARD::QAR(A)+B(B)
- Refutation
- R(c);XP(H)
- Try
- B(D);
- Threat
- S(G)
- Vars
- P(e);OGATE,P_SPINP(e),XB(B)::QAR2(A),XP(e)
- R(d);N_GUARD::QAR(A)+B(B)
- Refutation
- R(c);XP(H)
- Try
- B(D);
- Threat
- S(G)
- Vars
- P(e);OGATE,P_SPINP(e),XB(B)::QAR2(A),XP(e)
- R(d);N_GUARD::QAR(A)+B(B)
- Refutation
- R(c);XP(H)
- Try
- B(D);
- Threat
- S(G)
- Vars
- P(e);OGATE,P_SPINP(e),XB(B)::QAR2(A),XP(e)
- R(d);N_GUARD::QAR(A)+B(B)
- Refutation
- R(c);XP(H)
- Try
- B(D);
- Threat
- S(G)
- Vars
- P(e);OGATE,P_SPINP(e),XB(B)::QAR2(A),XP(e)
- Refutation
- R(c);XP(H)
- Try
- B(D);
- Threat
- S(G)
- Vars
- R(d);N_GUARD,P_PINS(J),XB(D)::QAR(A)+B(B)
- P(e);OGATE,P_SPINP(e),XB(B)::QAR2(A),XP(e)
- R(d);N_GUARD::QAR(A)+B(B)
- Refutation
- R(c);XP(H)
- Try
- Q(A);XS(a)
- Threat
- DUALS(2)
- Vars
- R(c);XP(H)::QAR(A)
- R(d);::S(G)
- R(d);::QAR(A)
- S(b);::QAR(A)
- S(b);::S(G)
- Refutation
- P(e);XB(B)
- Try
- Actual
- B(B);
- Threat
- S(G)
- Vars
- R(c);N_GUARD,XP(H)::QAR(A)+B(D)
- P(e);OGATEB::QAB(A)
- R(c);N_GUARD::P=Q
- R(d);N_GUARD::QAR(A)
- R(d);N_GUARD::QAR(A)+B(D)
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