MESON Chess Problem Database
Problem Display
PID: 16625 (7b/2r4b/8/2p1N1Q1/4kN1R/2B1P3/r1n2K2/1B2R3 w - - 0 1)
Jacobs, Walter William
2nd Comm., American Chess Bulletin, 1942
#2
9 + 7
| 5088 | How to Solve Chess Problems | 1945 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Bxc2#
- 1...Ra3
- 2.Bxc2#
- 1...Ra4
- 2.Bxc2#
- 1...Ra5
- 2.Bxc2#
- 1...Ra6
- 2.Bxc2#
- 1...Raa7
- 2.Bxc2#
- 1...Ra8
- 2.Bxc2#
- 1...Bf5
- 2.Qg2#
- 1...Bg6
- 2.Qxg6#
- 1...Bg8
- 2.Qg6#
- 1...Bxe5
- 2.Qxe5#
- 1...Ra1
- Tries
- 1.Sf3?
- threat
- 2.Sd2#
- 2.Qd5#
- 1...Bxc3
- 2.Qd5#
- 1...Bf5
- 2.Sd2#
- 1...Bg8
- 2.Sd2#
- 2.Qg6#
- 1...Be5
- 2.Sd2#
- 2.Qxe5#
- 1...Rd7!
- threat
- 1.Sc4?
- threat
- 2.Sd2#
- 2.Sd6#
- 2.Qd5#
- 1...Bxc3
- 2.Sd6#
- 2.Qd5#
- 1...Ra6
- 2.Sd2#
- 2.Bxc2#
- 2.Qd5#
- 1...Rc6
- 2.Sd2#
- 2.Qd5#
- 1...Bf5
- 2.Sd2#
- 2.Sd6#
- 2.Qg2#
- 1...Bg8
- 2.Sd2#
- 2.Sd6#
- 2.Qg6#
- 1...Be5
- 2.Sd2#
- 2.Qxe5#
- 1...Rd7!
- threat
- 1.Sc6?
- threat
- 2.Qd5#
- 1...Bf5
- 2.Qg2#
- 1...Bg8
- 2.Qg6#
- 1...Be5
- 2.Qxe5#
- 1...Rd7!
- threat
- 1.Sd7?
- threat
- 2.Qd5#
- 1...Bf5
- 2.Qg2#
- 1...Bg8
- 2.Qg6#
- 1...Be5
- 2.Qxe5#
- 1...Rxd7!
- threat
- 1.Sf7?
- threat
- 2.Sd6#
- 2.Qd5#
- 1...Rxf7
- 2.Qd5#
- 1...Ra6
- 2.Bxc2#
- 2.Qd5#
- 1...Rc6
- 2.Qd5#
- 1...Bf5
- 2.Sd6#
- 2.Qg2#
- 1...Be5
- 2.Qxe5#
- 1...Rd7!
- threat
- 1.Bxa2?
- threat
- 2.Se2#
- 2.Sg2#
- 2.Sfd3#
- 2.Sh3#
- 2.Sd5#
- 2.Sh5#
- 2.Se6#
- 2.Sfg6#
- 2.Bd5#
- 1...Bxe5
- 2.Bd5#
- 2.Qxe5#
- 1...Sxe3
- 2.Sg2#
- 2.Sfd3#
- 2.Sh3#
- 2.Sd5#
- 2.Sh5#
- 2.Se6#
- 2.Sfg6#
- 2.Bb1#
- 2.Bd5#
- 2.Rxe3#
- 1...Rd7
- 2.Se2#
- 2.Sg2#
- 2.Sfd3#
- 2.Sh3#
- 2.Sd5#
- 2.Sh5#
- 2.Se6#
- 2.Sfg6#
- 1...Rf7
- 2.Bd5#
- 1...Bf5
- 2.Bd5#
- 2.Qg2#
- 1...Bg6
- 2.Se2#
- 2.Sg2#
- 2.Sfd3#
- 2.Sh3#
- 2.Sd5#
- 2.Sh5#
- 2.Se6#
- 2.Sfxg6#
- 2.Bd5#
- 2.Qxg6#
- 1...Bg8
- 2.Se2#
- 2.Sg2#
- 2.Sfd3#
- 2.Sh3#
- 2.Sd5#
- 2.Sh5#
- 2.Se6#
- 2.Sfg6#
- 2.Qg6#
- 1...Sb4
- 2.Se2#
- 2.Sg2#
- 2.Sfd3#
- 2.Sh3#
- 2.Sd5#
- 2.Sh5#
- 2.Se6#
- 2.Sfg6#
- 1...c4!
- threat
- 1.Rd1?
- threat
- 2.Se2#
- 2.Sg2#
- 2.Sh3#
- 2.Sd5#
- 2.Sh5#
- 2.Se6#
- 2.Sfg6#
- 1...Bxe5
- 2.Qxe5#
- 1...Bf5
- 2.Qg2#
- 1...Bg6
- 2.Se2#
- 2.Sg2#
- 2.Sh3#
- 2.Sd5#
- 2.Sh5#
- 2.Se6#
- 2.Sfxg6#
- 2.Qxg6#
- 1...Rf7!
- threat
- 1.Sf3?
- Keys
- 1.Sed3!
- threat
- 2.Qd5#
- 1...Sa1+
- 2.Se2#
- 1...Sxe1+
- 2.Se2#
- 1...Sa3+
- 2.Se2#
- 1...Sxe3+
- 2.Sb2#
- 1...Sb4+
- 2.Se2#
- 1...Sd4+
- 2.Se2#
- 1...Rd7
- 2.Sxc5#
- 1...Bf5
- 2.Qg2#
- 1...Bg8
- 2.Qg6#
- 1...Be5
- 2.Qxe5#
- threat
- 1.Sed3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 8
- Sets
- R(a);N_GUARD::B(A),XS(b)
- B(f);SBLOCK::QAB(I)
- B(f);N_GUARD::QAB(I),XB(f)
- B(f);N_GUARD::QAB(I)
- B(g);OGATE,XS(H)::QAR1(I),XB(g)
- Tries
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- B(g);XB(D)::QAB1(I)
- B(f);::S(H)
- Refutation
- R(e);
- Try
- S(H);
- Threat
- DUALS(3)
- Refutation
- R(e);
- Try
- S(H);
- Threat
- QAB1(I)
- Vars
- B(f);SBLOCK::QAB(I)
- B(f);N_GUARD::QAB(I)
- B(g);N_GUARD::QAR1(I),XB(g)
- Refutation
- R(e);
- Try
- S(H);
- Threat
- QAB1(I)
- Vars
- B(f);SBLOCK::QAB(I)
- B(f);N_GUARD::QAB(I)
- B(g);N_GUARD::QAR1(I),XB(g)
- Refutation
- R(e);XS(H)
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- R(e);P_PINS(F),XS(H)::QAB1(I)
- R(e);::QAB1(I)
- B(g);N_GUARD::QAR1(I),XB(g)
- Refutation
- R(e);
- Try
- B(A);N_PINS(b),XR(a)
- Threat
- DUALS(9)
- Vars
- R(e);P_PINS(F)::B(A)
- Refutation
- P(d);
- Try
- R(B);
- Threat
- DUALS(7)
- Vars
- B(g);OGATE,XS(H)::QAR1(I),XB(g)
- B(f);SBLOCK::QAB(I)
- Refutation
- R(e);P_PINS(F)
- Try
- Actual
- S(H);N_PINS(b)
- Threat
- QAB1(I)
- Vars
- S(b);CHECK::R(G)+S(F)
- S(b);CHECK,XR(B)::R(G)+S(F)
- S(b);CHECK,P_SPINS(b),XP(E)::B(A)+S(H)
- R(e);N_GUARD::S(H),XP(d)
- B(f);SBLOCK::QAB(I)
- B(f);N_GUARD::QAB(I)
- B(g);N_GUARD::QAR1(I),XB(g)
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