MESON Chess Problem Database
Problem Display
PID: 240393 (8/3p2n1/3B1p2/1p1Q1p2/bp1PrP1K/1p2k1NP/1R3R2/5B2 w - - 0 1)
Zilahi, Zoltan
Tijdschrift vd KNSB, 1952
#2
10 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxd4
- 2.Rf3#
- 2.Qf3#
- 1...Rxf4+
- 2.Bxf4#
- 1...Re5
- 2.Rf3#
- 1...Re6
- 2.Rf3#
- 1...Re7
- 2.Rf3#
- 1...Re8
- 2.Rf3#
- 1...Sh5
- 2.Sxf5#
- 1...Se6
- 2.Sxf5#
- 1...Se8
- 2.Sxf5#
- 1...Rxd4
- Tries
- 1.Bc4?
- threat
- 2.Sf1#
- 2.Rbe2#
- 1...Rxf4+
- 2.Bxf4#
- 1...bxc4!
- threat
- 1.Bxb5?
- threat
- 2.Sf1#
- 2.Rbe2#
- 1...Rxf4+
- 2.Bxf4#
- 1...Bxb5!
- threat
- 1.Bc7?
- 1...Rxf4+
- 2.Bxf4#
- 1...Rxd4
- 2.Rf3#
- 2.Qf3#
- 1...Re5
- 2.Rf3#
- 1...Re6
- 2.Rf3#
- 1...Re7
- 2.Rf3#
- 1...Re8
- 2.Rf3#
- 1...Sh5
- 2.Sxf5#
- 1...Se6
- 2.Sxf5#
- 1...Se8
- 2.Sxf5#
- 1...d6!
- 1...Rxf4+
- 1.Bb8?
- 1...Rxf4+
- 2.Bxf4#
- 1...Rxd4
- 2.Rf3#
- 2.Qf3#
- 1...Re5
- 2.Rf3#
- 1...Re6
- 2.Rf3#
- 1...Re7
- 2.Rf3#
- 1...Re8
- 2.Rf3#
- 1...Sh5
- 2.Sxf5#
- 1...Se6
- 2.Sxf5#
- 1...Se8
- 2.Sxf5#
- 1...d6!
- 1...Rxf4+
- 1.Rbd2?
- 1...Rxf4+
- 2.Bxf4#
- 1...Rxd4
- 2.Rfe2#
- 2.Qf3#
- 2.Qxd4#
- 1...Re5
- 2.Qf3#
- 1...Re6
- 2.Rfe2#
- 2.Qf3#
- 1...Re7
- 2.Rfe2#
- 2.Qf3#
- 1...Re8
- 2.Rfe2#
- 2.Qf3#
- 1...Sh5
- 2.Sxf5#
- 1...Se6
- 2.Sxf5#
- 1...Se8
- 2.Sxf5#
- 1...b2!
- 1...Rxf4+
- 1.Rfe2+?
- 1...Kf3
- 2.Bg2#
- 1...Kd3!
- 1...Kf3
- 1.Qxb3+?
- 1...Kxd4
- 2.Rbd2#
- 2.Rfd2#
- 2.Qd3#
- 1...Bxb3!
- 1...Kxd4
- 1.Qc4?
- threat
- 2.Rbe2#
- 2.Qd3#
- 1...Rxf4+
- 2.Bxf4#
- 1...Rxd4
- 2.Rbe2#
- 2.Qe2#
- 1...bxc4!
- threat
- 1.Qc5?
- 1...Rxf4+
- 2.Bxf4#
- 1...Re5
- 2.dxe5#
- 2.d5#
- 1...Re6
- 2.d5#
- 1...Re7
- 2.d5#
- 1...Re8
- 2.d5#
- 1...Sh5
- 2.Sxf5#
- 1...Se6
- 2.Sxf5#
- 1...Se8
- 2.Sxf5#
- 1...Rxd4!
- 1...Rxf4+
- 1.Bc4?
- Keys
- 1.Qxf5!
- threat
- 2.Qxe4#
- 1...Rxf4+
- 2.Qxf4#
- 1...Sxf5+
- 2.Sxf5#
- 1...Kxd4
- 2.Qc5#
- 1...Rxd4
- 2.Rbe2#
- 1...Re5
- 2.Qd3#
- 1...Re6
- 2.Qd3#
- 1...Re7
- 2.Qd3#
- 1...Re8
- 2.Qd3#
- threat
- 1.Qxf5!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 5
- ADDED MATES = 3
- REMOVED MATES = 3
- Sets
- R(e);CHECK,OGATE,XP(G)::B(J),XR(e)
- R(e);N_PINP(G)::R1(C)
- S(j);N_GUARD::S(D),XP(g)
- Tries
- Try
- B(A);
- Threat
- DUALS(2)
- Vars
- R(e);CHECK,OGATE,XP(G)::B(J),XR(e)
- Refutation
- P(f);XB(A)
- Try
- B(A);XP(f)
- Threat
- DUALS(2)
- Vars
- R(e);CHECK,OGATE,XP(G)::B(J),XR(e)
- Refutation
- B(c);XB(A)
- Try
- B(J);
- Vars
- R(e);CHECK,OGATE,XP(G)::B(J),XR(e)
- R(e);N_PINP(G)::R1(C)
- S(j);N_GUARD::S(D),XP(g)
- Refutation
- P(i);
- Try
- B(J);
- Vars
- R(e);CHECK,OGATE,XP(G)::B(J),XR(e)
- R(e);N_PINP(G)::R1(C)
- S(j);N_GUARD::S(D),XP(g)
- Refutation
- P(i);
- Try
- R(B);
- Vars
- R(e);CHECK,OGATE,XP(G)::B(J),XR(e)
- R(e);N_PINP(G),OGATE::QAR1(I)
- S(j);N_GUARD::S(D),XP(g)
- Refutation
- P(a);
- Try
- R(C);CHECK
- Vars
- K(b);P-FLIGHT,P_SPINR(e)::B(A)
- Refutation
- K(b);P-FLIGHT
- Try
- Q(I);CHECK,XP(a)
- Refutation
- B(c);XQ(I)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- R(e);CHECK,OGATE,XP(G)::B(J),XR(e)
- Refutation
- P(f);XQ(I)
- Try
- Q(I);
- Vars
- R(e);CHECK,OGATE,XP(G)::B(J),XR(e)
- R(e);N_GUARD,N_PINP(G)::QAB(I)+P(F)
- S(j);N_GUARD::S(D),XP(g)
- Refutation
- R(e);P_SPINR(e),XP(F)
- Try
- Actual
- Q(I);XP(g)
- Threat
- QAR1(I),XR(e)
- Vars
- R(e);CHECK,OGATE,XP(G)::QAB1(I),XR(e)
- S(j);CHECK,XQ(I)::S(D),XS(j)
- K(b);OGATEB,S_FLIGHT,XP(F)::QAB1(I)
- R(e);SBLOCK,XP(F)::R1(B)
- R(e);N_PINP(G),OGATE::QAR1(I)
Developed and maintained by Brian Stephenson.
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