MESON Chess Problem Database
Problem Display
PID: 144697 (1Bn1N3/1n1pbQ2/Br6/R2P1p2/4kP1r/1NP4p/2bK4/5R2 w - - 0 1)
Petersen, Filip Jakob
Arbejder-Skak, 1941
#2
11 + 10
| 15422 | Problemskak | 2008 |
SOLUTION
- SOUND
- Sets
- 1...Rxf4
- 2.Rxf4#
- 1...Rd6
- 2.Ra4#
- 1...Bd1
- 2.Bd3#
- 1...Bxb3
- 2.Bd3#
- 1...Bd3
- 2.Bxd3#
- 1...Bd6
- 2.Sf6#
- 1...Sbd6
- 2.Sc5#
- 1...Scd6
- 2.Qxe7#
- 1...d6
- 2.Qe6#
- 1...Rxf4
- Tries
- 1.Sd4?
- threat
- 2.Re1#
- 2.Qxf5#
- 1...Rxf4
- 2.Re1#
- 2.Rxf4#
- 1...Rh5
- 2.Re1#
- 1...Rb1
- 2.Qxf5#
- 1...Rd6
- 2.Qxf5#
- 1...Rf6
- 2.Re1#
- 1...Bd1
- 2.Bd3#
- 2.Qxf5#
- 1...Bd3
- 2.Bxd3#
- 2.Qxf5#
- 1...Bd6
- 2.Sf6#
- 2.Qxf5#
- 1...Bf6
- 2.Re1#
- 1...Scd6
- 2.Qxe7#
- 1...d6
- 2.Qe6#
- 2.Qxf5#
- 1...Sbd6!
- threat
- 1.Sd6+?
- 1...Rxd6
- 2.Ra4#
- 1...Sbxd6
- 2.Sc5#
- 1...Scxd6
- 2.Qxe7#
- 1...Bxd6!
- 1...Rxd6
- 1.Qxe7+?
- 1...Re6
- 2.Sf6#
- 2.Qb4#
- 1...Sxe7!
- 1...Re6
- 1.d6?
- threat
- 2.Re5#
- 2.Qc4#
- 2.Qd5#
- 2.Qxf5#
- 1...Rxf4
- 2.Qc4#
- 2.Qd5#
- 1...Bxb3
- 2.Bd3#
- 2.Re5#
- 2.Qxf5#
- 1...Bxd6
- 2.Sf6#
- 2.Qc4#
- 2.Qd5#
- 2.Qxf5#
- 1...Sxa5
- 2.Sc5#
- 1...Sbxd6
- 2.Sc5#
- 2.Re5#
- 2.Qd5#
- 1...Scxd6
- 2.Re5#
- 2.Qd5#
- 2.Qxe7#
- 1...Rh5
- 2.Re5#
- 2.Qc4#
- 2.Qd5#
- 1...Rb4
- 2.Re5#
- 2.Qd5#
- 2.Qxf5#
- 1...Rb5
- 2.Qc4#
- 1...Rc6
- 2.Re5#
- 2.Qd5#
- 2.Qxf5#
- 1...Bd3
- 2.Bxd3#
- 2.Re5#
- 2.Qd5#
- 2.Qxf5#
- 1...Bf6
- 2.Sxf6#
- 2.Qd5#
- 1...Sc5
- 2.Sxc5#
- 2.Qc4#
- 1...Rxd6+!
- threat
- 1.Sd4?
- Keys
- 1.Be2!
- threat
- 2.Bf3#
- 1...Rxf4
- 2.Rxf4#
- 1...Rd6
- 2.Ra4#
- 1...Bd1
- 2.Bd3#
- 1...Bd6
- 2.Sf6#
- 1...Sbd6
- 2.Sc5#
- 1...Scd6
- 2.Qxe7#
- 1...d6
- 2.Qe6#
- threat
- 1.Be2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- R(d);OGATE,XP(E)::R1(A),XR(d)
- R(f);N_GUARD,P_PINP(G),S_CUTB(i)::R(F)
- B(a);N_GUARD::B(H)
- B(a);N_GUARD,XS(C)::B(H)
- B(a);N_GUARD::B(H),XB(a)
- B(i);N_GUARD,S_CUTR(f)::S(K)
- S(g);N_GUARD,S_CUTB(i)::S(C)
- S(j);N_GUARD,S_CUTR(f)::QAR(I),XB(i)
- P(h);N_GUARD,S_CUTR(f)::QAR2(I)
- Tries
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- R(d);::R(A)
- R(f);::QAB1(I),XP(e)
- R(f);::R(A)
- B(i);::R(A)
- S(j);N_GUARD,S_CUTR(f)::QAR(I),XB(i)
- Refutation
- S(g);
- Try
- S(K);CHECK
- Vars
- R(f);P_PINP(G),XS(K)::R(F)
- S(g);XS(K)::S(C)
- S(j);XS(K)::QAR(I),XB(i)
- Refutation
- B(i);XS(K)
- Try
- Q(I);CHECK,XB(i)
- Refutation
- S(j);XQ(I)
- Try
- P(G);
- Threat
- DUALS(4)
- Vars
- S(g);N_GUARD,XR(F)::S(C)
- R(f);::QAR2(I)
- Refutation
- R(f);CHECK,XP(G)
- Try
- Actual
- B(H);
- Threat
- B(H)
- Vars
- R(d);OGATE,XP(E)::R1(A),XR(d)
- R(f);N_GUARD,P_PINP(G),S_CUTB(i)::R(F)
- B(a);N_GUARD::B(H)
- B(i);N_GUARD,S_CUTR(f)::S(K)
- S(g);N_GUARD,S_CUTB(i)::S(C)
- S(j);N_GUARD,S_CUTR(f)::QAR(I),XB(i)
- P(h);N_GUARD,S_CUTR(f)::QAR2(I)
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