MESON Chess Problem Database
Problem Display
PID: 269437 (8/qB1r1R2/rQ1bp1b1/4k1P1/p4R2/B1p1NP2/1n2N2n/7K w - - 0 1)
Wielgos, Oskar
Die Schwalbe, 1975
#2
10 + 11
SOLUTION
- SOUND
- Sets
- 1...Qb8
- 2.Qd4#
- 1...Qxb7
- 2.Qd4#
- 1...Qa8
- 2.Qd4#
- 1...Rxb7
- 2.Bxd6#
- 1...Rc7
- 2.Bxd6#
- 1...Re7
- 2.Bxd6#
- 1...Rxf7
- 2.Bxd6#
- 1...Be4
- 2.Rxe4#
- 1...Bh5
- 2.Re4#
- 1...Bxf7
- 2.Re4#
- 1...Sd1
- 2.Sc4#
- 1...Sd3
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sf1
- 2.Sg4#
- 1...Sxf3
- 2.Sg4#
- 1...Sg4
- 2.Sxg4#
- 1...c2
- 2.Bxb2#
- 1...Qb8
- Tries
- 1.Kxh2?
- threat
- 2.Sg4#
- 1...Qxb7
- 2.Qd4#
- 1...Rxb7
- 2.Bxd6#
- 1...Bh5
- 2.Re4#
- 1...Bf5!
- threat
- 1.Bxb2?
- threat
- 2.Sc4#
- 2.Bxc3#
- 1...Qxb6
- 2.Sc4#
- 1...Qxb7
- 2.Bxc3#
- 2.Qd4#
- 1...Rxb7
- 2.Bxc3#
- 1...Sxf3
- 2.Sc4#
- 2.Sg4#
- 1...cxb2
- 2.Sc4#
- 1...Ba3
- 2.Sc4#
- 1...Bb4
- 2.Sc4#
- 1...Bc5
- 2.Sc4#
- 1...Bc7
- 2.Sc4#
- 1...Be7
- 2.Sc4#
- 1...Bb8
- 2.Sc4#
- 1...Bf8
- 2.Sc4#
- 1...Bd3
- 2.Bxc3#
- 1...Rc7!
- threat
- 1.Rxa4?
- threat
- 2.f4#
- 1...Qxb7
- 2.Qd4#
- 1...Rxf7
- 2.Bxd6#
- 1...Sxf3
- 2.Sg4#
- 1...Be4
- 2.Rxe4#
- 1...Sd3
- 2.Sc4#
- 1...Rxa4!
- threat
- 1.Rb4?
- threat
- 2.f4#
- 1...Qxb7
- 2.Qd4#
- 1...Sxf3
- 2.Sg4#
- 1...Be4
- 2.Rxe4#
- 1...Sd3
- 2.Sc4#
- 1...Rxf7!
- threat
- 1.Rc4?
- threat
- 2.f4#
- 1...Qxb7
- 2.Qd4#
- 1...Rxf7
- 2.Bxd6#
- 1...Sxf3
- 2.Sg4#
- 1...Be4
- 2.Rxe4#
- 1...Sd3!
- threat
- 1.Rd4?
- threat
- 2.f4#
- 1...Rxf7
- 2.Bxd6#
- 1...Sxf3
- 2.Sg4#
- 1...Be4
- 2.Rxe4#
- 1...Sd3
- 2.Sc4#
- 1...Qxb7!
- threat
- 1.Rg4?
- threat
- 2.f4#
- 1...Qxb7
- 2.Qd4#
- 1...Rxb7
- 2.Bxd6#
- 1...Rxf7
- 2.Bxd6#
- 1...Be4
- 2.Rxe4#
- 1...Sd3
- 2.Sc4#
- 1...Sxf3!
- threat
- 1.R4f5+?
- 1...Bxf5
- 2.f4#
- 1...exf5!
- 1...Bxf5
- 1.R4f6?
- threat
- 2.f4#
- 1...Qxb7
- 2.Qd4#
- 1...Rxb7
- 2.Bxd6#
- 1...Sxf3
- 2.Sg4#
- 1...Sd3
- 2.Sc4#
- 1...Be4!
- threat
- 1.Kxh2?
- Keys
- 1.Rh4!
- threat
- 2.f4#
- 1...Qxb7
- 2.Qd4#
- 1...Rxb7
- 2.Bxd6#
- 1...Rxf7
- 2.Bxd6#
- 1...Sxf3
- 2.Sg4#
- 1...Be4
- 2.Rxe4#
- 1...Sd3
- 2.Sc4#
- threat
- 1.Rh4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 11
- Sets
- Q(j);N_GUARD::QAB1(H)
- Q(j);N_GUARD,P_PINP(E),XB(I)::QAB1(H)
- R(k);N_GUARD,XB(I)::B(C),XB(g)
- R(k);N_GUARD::B(C),XB(g)
- R(k);N_GUARD,XR(J)::B(C),XB(g)
- B(i);N_GUARD,P_PINP(E)::R1(F),XB(i)
- B(i);N_GUARD::R1(F)
- B(i);N_GUARD,XR(J)::R1(F)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- S(b);N_GUARD::S(D)
- S(b);N_GUARD,XP(E)::S(D)
- S(b);N_GUARD::S(D),XS(b)
- P(c);OGATEB::B(C),XS(a)
- Tries
- Try
- K(A);P-FLIGHT,XS(b)
- Threat
- S(D)
- Vars
- Q(j);N_GUARD,XB(I)::QAB1(H)
- R(k);N_GUARD,XB(I)::B(C),XB(g)
- B(i);N_GUARD::R1(F)
- Refutation
- B(i);
- Try
- B(C);P_PINP(c),XS(a)
- Threat
- DUALS(2)
- Vars
- Q(j);XQ(H)::S(D)
- R(k);XB(I)::B(C),XP(c)
- P(c);N_SPINP(c),XB(C)::S(D)
- B(g);::S(D)
- B(i);::B(C),XP(c)
- Refutation
- R(k);
- Try
- R(F);XP(d)
- Threat
- P(E)
- Vars
- Q(j);N_GUARD,P_PINP(E),XB(I)::QAB1(H)
- R(k);N_GUARD,XR(J)::B(C),XB(g)
- S(b);N_GUARD,XP(E)::S(D)
- B(i);N_GUARD,P_PINP(E)::R1(F),XB(i)
- S(a);N_GUARD::S(D)
- Refutation
- R(f);XR(F)
- Try
- R(F);
- Threat
- P(E)
- Vars
- Q(j);N_GUARD,P_PINP(E),XB(I)::QAB1(H)
- S(b);N_GUARD,XP(E)::S(D)
- B(i);N_GUARD,P_PINP(E)::R1(F),XB(i)
- S(a);N_GUARD::S(D)
- Refutation
- R(k);XR(J)
- Try
- R(F);
- Threat
- P(E)
- Vars
- Q(j);N_GUARD,P_PINP(E),XB(I)::QAB1(H)
- R(k);N_GUARD,XR(J)::B(C),XB(g)
- S(b);N_GUARD,XP(E)::S(D)
- B(i);N_GUARD,P_PINP(E)::R1(F),XB(i)
- Refutation
- S(a);
- Try
- R(F);
- Threat
- P(E)
- Vars
- R(k);N_GUARD,XR(J)::B(C),XB(g)
- S(b);N_GUARD,XP(E)::S(D)
- B(i);N_GUARD,P_PINP(E)::R1(F),XB(i)
- S(a);N_GUARD::S(D)
- Refutation
- Q(j);P_PINP(E),XB(I)
- Try
- R(F);
- Threat
- P(E)
- Vars
- Q(j);N_GUARD,P_PINP(E),XB(I)::QAB1(H)
- R(k);N_GUARD,XB(I)::B(C),XB(g)
- R(k);N_GUARD,XR(J)::B(C),XB(g)
- B(i);N_GUARD,P_PINP(E)::R1(F),XB(i)
- S(a);N_GUARD::S(D)
- Refutation
- S(b);XP(E)
- Try
- R(F);CHECK
- Vars
- B(i);XR(F)::P(E)
- Refutation
- P(h);XR(F)
- Try
- R(F);
- Threat
- P(E)
- Vars
- Q(j);N_GUARD,P_PINP(E),XB(I)::QAB1(H)
- R(k);N_GUARD,XB(I)::B(C),XB(g)
- S(b);N_GUARD,XP(E)::S(D)
- S(a);N_GUARD::S(D)
- Refutation
- B(i);P_PINP(E)
- Try
- Actual
- R(F);
- Threat
- P(E)
- Vars
- Q(j);N_GUARD,P_PINP(E),XB(I)::QAB1(H)
- R(k);N_GUARD,XB(I)::B(C),XB(g)
- R(k);N_GUARD,XR(J)::B(C),XB(g)
- S(b);N_GUARD,XP(E)::S(D)
- B(i);N_GUARD,P_PINP(E)::R1(F),XB(i)
- S(a);N_GUARD::S(D)
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