MESON Chess Problem Database
Problem Display
PID: 72447 (2N2n2/5B2/3Prp2/2pk1P2/Q7/B1Pb1Pb1/4R1Np/7K w - - 0 1)
Beunk, HJ
Tijdschrift vd NSB, 1931
#2
11 + 8
SOLUTION
- SOUND
- Sets
- 1...Bxe2
- 2.Qe4#
- 1...Bc4
- 2.Qa8#
- 1...Be4
- 2.Qxe4#
- 1...Bb5
- 2.Qe4#
- 1...Ba6
- 2.Qe4#
- 1...Be1
- 2.Sf4#
- 1...Bf2
- 2.Sf4#
- 1...Bf4
- 2.Sxf4#
- 1...Bh4
- 2.Sf4#
- 1...Be5
- 2.Se3#
- 1...Bxd6
- 2.Sb6#
- 1...Sg6
- 2.Bxe6#
- 1...Sd7
- 2.Bxe6#
- 1...Sh7
- 2.Bxe6#
- 1...c4
- 2.Sb6#
- 2.Se7#
- 2.Qb5#
- 2.Qa8#
- 1...Bxe2
- Tries
- 1.Rd2?
- threat
- 2.Qe4#
- 1...c4
- 2.Qb5#
- 1...Ke5!
- threat
- 1.Re4?
- threat
- 2.Se3#
- 2.Qa8#
- 1...Bxe4
- 2.Qxe4#
- 1...Ba6
- 2.Se3#
- 1...Bf2
- 2.Sf4#
- 2.Qa8#
- 1...Bf4
- 2.Sxf4#
- 2.Qa8#
- 1...Bb5!
- threat
- 1.Re5+?
- 1...Bxe5
- 2.Se3#
- 1...fxe5
- 2.Se3#
- 1...Kxe5!
- 1...Bxe5
- 1.Rxe6?
- threat
- 2.Se3#
- 2.Sb6#
- 2.Se7#
- 1...Bxd6
- 2.Se3#
- 2.Sb6#
- 1...Bb5
- 2.Se7#
- 2.Qe4#
- 1...Bf2
- 2.Sf4#
- 2.Sb6#
- 2.Se7#
- 1...Bf4
- 2.Sxf4#
- 2.Sb6#
- 2.Se7#
- 1...Sg6
- 2.Se3#
- 2.Sb6#
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Re7#
- 2.Re8#
- 1...Sd7
- 2.Se3#
- 2.Se7#
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Re7#
- 2.Re8#
- 1...Sxe6!
- threat
- 1.Qb3+?
- 1...Bc4
- 2.Qb7#
- 1...c4
- 2.Se7#
- 2.Qb5#
- 2.Qb7#
- 1...Kc6!
- 1...Bc4
- 1.Qb5?
- threat
- 2.Qxc5#
- 1...Bxd6
- 2.Sb6#
- 1...Bf2
- 2.Sf4#
- 1...Sd7
- 2.Bxe6#
- 1...Bxb5!
- threat
- 1.c4+?
- 1...Kd4
- 2.Bb2#
- 1...Bxc4!
- 1...Kd4
- 1.f4?
- threat
- 2.Se3#
- 1...Bxf4
- 2.Sxf4#
- 1...Bb5
- 2.Qe4#
- 1...Bc4
- 2.Qa8#
- 1...Be4
- 2.Qxe4#
- 1...c4
- 2.Sb6#
- 2.Se7#
- 2.Qb5#
- 2.Qa8#
- 1...Bf2!
- threat
- 1.Rd2?
- Keys
- 1.Bb2!
- 1...Bxe2
- 2.Qe4#
- 1...Bxf5
- 2.c4#
- 1...Bxd6
- 2.Sb6#
- 1...Be4
- 2.Qxe4#
- 2.c4#
- 1...Bb5
- 2.Qe4#
- 1...c4
- 2.Qb5#
- 1...Bb1
- 2.c4#
- 1...Bc2
- 2.c4#
- 1...Bc4
- 2.Qa8#
- 1...Ba6
- 2.Qe4#
- 1...Be1
- 2.Sf4#
- 1...Bf2
- 2.Sf4#
- 1...Bf4
- 2.Sxf4#
- 1...Bh4
- 2.Sf4#
- 1...Be5
- 2.Se3#
- 1...Sg6
- 2.Bxe6#
- 1...Sd7
- 2.Bxe6#
- 1...Sh7
- 2.Bxe6#
- 1...Bxe2
- 1.Bb2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- B(b);N_GUARD,XR(B)::QAB1(G)
- B(b);SBLOCK::QAB(G)
- B(b);N_GUARD::QAB1(G),XB(b)
- B(b);N_GUARD::QAB1(G)
- B(c);N_GUARD::S(C)
- B(c);N_GUARD::S(C),XB(c)
- B(c);SBLOCK::S(C)
- B(c);SBLOCK,XP(I)::S(K)
- S(h);N_GUARD::B(J),XR(f)
- Tries
- Try
- R(B);P_PINB(b)
- Threat
- QAB1(G)
- Vars
- P(d);OGATEB::QAR2(G)
- Refutation
- K(e);N_SPINB(b),N_SPINR(f),P-FLIGHT
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- B(b);OGATE,XR(B)::QAB1(G),XB(b)
- B(b);::S(C)
- Refutation
- B(b);
- Try
- R(B);CHECK
- Vars
- B(c);SBLOCK,XR(B)::S(C)
- P(g);SBLOCK,XR(B)::S(C)
- Refutation
- K(e);N_SPINR(f),P-FLIGHT,XR(B)
- Try
- R(B);XR(f)
- Threat
- DUALS(3)
- Refutation
- S(h);P_SPINS(h),XR(B)
- Try
- Q(G);CHECK
- Vars
- B(b);P_SPINB(b),SBLOCK::QAB(G)
- Refutation
- K(e);N_SPINR(f),S_FLIGHT
- Try
- Q(G);P_PINP(d)
- Threat
- QAR1(G),XP(d)
- Vars
- B(c);SBLOCK,XP(I)::S(K)
- B(c);N_GUARD::S(C)
- S(h);N_GUARD::B(J),XR(f)
- Refutation
- B(b);N_SPINP(d),XQ(G)
- Try
- P(E);CHECK
- Vars
- K(e);N_SPINR(f),P-FLIGHT::B(D)
- Refutation
- B(b);XP(E)
- Try
- P(F);
- Threat
- S(C)
- Vars
- B(c);XP(F)::S(C),XB(c)
- B(b);N_GUARD::QAB1(G)
- B(b);SBLOCK::QAB(G)
- B(b);N_GUARD,P_PINS(C)::QAB1(G),XB(b)
- Refutation
- B(c);
- Try
- Actual
- B(D);
- Vars
- B(b);N_GUARD,XR(B)::QAB1(G)
- B(b);N_GUARD,XP(H)::P(E)
- B(c);SBLOCK,XP(I)::S(K)
- B(b);N_GUARD::QAB1(G)
- P(d);OGATEB::QAR2(G)
- B(b);N_GUARD::P(E)
- B(b);SBLOCK::QAB(G)
- B(c);N_GUARD::S(C)
- B(c);N_GUARD::S(C),XB(c)
- B(c);SBLOCK::S(C)
- S(h);N_GUARD::B(J),XR(f)
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