MESON Chess Problem Database
Problem Display
PID: 245705 (4Q3/2r1N2b/2p4b/P1pR1p1r/K1kN4/P4P2/1P3B1q/nB6 w - - 0 1)
Wirtanen, Erkki Aukusti
Schweizerische Arbeiter Schachzeitung, 1961
#2
11 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...cxd5
- 2.Qb5#
- 1...cxd5
- Tries
- 1.Se2?
- threat
- 2.Bd3#
- 2.Rxc5#
- 1...Qxf2
- 2.Bd3#
- 1...Rxe7
- 2.Rxc5#
- 1...cxd5
- 2.Qb5#
- 1...Qe5
- 2.Bd3#
- 1...Qd6
- 2.Bd3#
- 1...Be3
- 2.Bd3#
- 1...Sc2
- 2.Ba2#
- 2.b3#
- 1...Sb3
- 2.Bd3#
- 1...f4!
- threat
- 1.Sb3?
- threat
- 2.Bd3#
- 2.Rxc5#
- 1...Qxf2
- 2.Bd3#
- 1...Rxe7
- 2.Rxc5#
- 1...Sxb3
- 2.Bd3#
- 1...cxd5
- 2.Qb5#
- 1...Qe5
- 2.Bd3#
- 1...Qd6
- 2.Bd3#
- 1...Be3
- 2.Bd3#
- 1...f4
- 2.Sd2#
- 1...Sc2!
- threat
- 1.Sb5?
- threat
- 2.Bd3#
- 2.Rxc5#
- 1...cxb5+
- 2.Qxb5#
- 1...Qxf2
- 2.Sd6#
- 2.Bd3#
- 1...Rxe7
- 2.Rxc5#
- 1...Qe5
- 2.Bd3#
- 1...Qd6
- 2.Sxd6#
- 2.Bd3#
- 1...Be3
- 2.Bd3#
- 1...Sc2
- 2.Ba2#
- 2.b3#
- 1...Sb3
- 2.Bd3#
- 1...f4
- 2.Sd6#
- 1...cxd5!
- threat
- 1.Sdxc6?
- threat
- 2.Bd3#
- 2.Rxc5#
- 1...Qxf2
- 2.Se5#
- 2.Bd3#
- 1...Rxc6
- 2.Bd3#
- 1...Rxe7
- 2.Rxc5#
- 1...Qe5
- 2.Sxe5#
- 2.Bd3#
- 1...Qd6
- 2.Bd3#
- 1...Be3
- 2.Bd3#
- 1...Sc2
- 2.Ba2#
- 1...Sb3
- 2.Bd3#
- 1...f4!
- threat
- 1.Se6?
- threat
- 2.Bd3#
- 2.Rxc5#
- 1...Qxf2
- 2.Bd3#
- 1...Rxe7
- 2.Rxc5#
- 1...cxd5
- 2.Qb5#
- 1...Qe5
- 2.Bd3#
- 1...Qd6
- 2.Bd3#
- 1...Be3
- 2.Bd3#
- 1...Sc2
- 2.Ba2#
- 1...Sb3
- 2.Bd3#
- 1...f4!
- threat
- 1.Qxc6?
- threat
- 2.Rxc5#
- 2.Qb5#
- 2.Qa6#
- 1...Qxf2
- 2.Qb5#
- 2.Qa6#
- 1...Rxe7
- 2.Rxc5#
- 2.Qxc5#
- 1...Sc2
- 2.Qb5#
- 2.Qa6#
- 1...f4
- 2.Qb5#
- 2.Qa6#
- 1...Qe5
- 2.Qb5#
- 2.Qa6#
- 1...Qd6
- 2.Qb5#
- 1...Ra7
- 2.Rxc5#
- 2.Qb5#
- 2.Qxc5#
- 1...Rb7
- 2.Rxc5#
- 2.Qxc5#
- 1...Be3
- 2.Qb5#
- 2.Qa6#
- 1...Sb3
- 2.Qb5#
- 2.Qa6#
- 1...Rxc6!
- threat
- 1.Se2?
- Keys
- 1.Sdxf5!
- threat
- 2.Bd3#
- 2.Rxc5#
- 1...Qxf2
- 2.Sd6#
- 2.Bd3#
- 1...Rxf5
- 2.Bd3#
- 1...Rxe7
- 2.Rxc5#
- 1...Bxf5
- 2.Rxc5#
- 1...cxd5
- 2.Qb5#
- 1...Qe5
- 2.Bd3#
- 1...Qd6
- 2.Sxd6#
- 2.Bd3#
- 1...Be3
- 2.Sxe3#
- 2.Bd3#
- 1...Sc2
- 2.Ba2#
- 1...Sb3
- 2.Bd3#
- threat
- 1.Sdxf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- P(g);OGATE,XR(I)::QAB1(K)
- Tries
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- Q(b);XB(C)::B(A)
- R(i);XS(J)::R1(I),XP(d)
- P(g);OGATE,XR(I)::QAB1(K)
- Q(b);::B(A)
- B(h);::B(A)
- S(a);::B(A)
- Refutation
- P(e);
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- Q(b);XB(C)::B(A)
- R(i);XS(J)::R1(I),XP(d)
- S(a);XS(G)::B(A)
- P(g);OGATE,XR(I)::QAB1(K)
- Q(b);::B(A)
- B(h);::B(A)
- P(e);S_CUTB(h)::S(G)
- Refutation
- S(a);
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- P(g);CHECK,OGATE,XS(G)::QAB1(K),XP(g)
- R(i);XS(J)::R1(I),XP(d)
- Q(b);::B(A)
- B(h);::B(A)
- S(a);::B(A)
- P(e);S_CUTQ(b)::S(G)
- Refutation
- P(g);XR(I)
- Try
- S(G);XP(g)
- Threat
- DUALS(2)
- Vars
- R(i);XS(G)::B(A)
- R(i);XS(J)::R1(I),XP(d)
- Q(b);::B(A)
- B(h);::B(A)
- S(a);N_GUARD::B(A)
- S(a);::B(A)
- Refutation
- P(e);
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- Q(b);XB(C)::B(A)
- R(i);XS(J)::R1(I),XP(d)
- P(g);OGATE,XR(I)::QAB1(K)
- Q(b);::B(A)
- B(h);::B(A)
- S(a);N_GUARD::B(A)
- S(a);::B(A)
- Refutation
- P(e);
- Try
- Q(K);P_PINP(d),XP(g)
- Threat
- DUALS(3)
- Vars
- Q(b);::QAB1(K)
- Refutation
- R(i);N_SPINP(d),XQ(K)
- Try
- Actual
- S(G);XP(e)
- Threat
- DUALS(2)
- Vars
- R(f);XS(G)::B(A)
- R(i);XS(J)::R1(I),XP(d)
- B(j);XS(G)::R1(I),XP(d)
- P(g);OGATE,XR(I)::QAB1(K)
- Q(b);::B(A)
- S(a);N_GUARD::B(A)
- S(a);::B(A)
Developed and maintained by Brian Stephenson.
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CSS/Javascript (jQuery, Bootstrap & DataTables).