MESON Chess Problem Database
Problem Display
PID: 266052 (Q5r1/b7/4p1PB/2PR4/r3k2K/2p1p3/N2R4/1n1B3b w - - 0 1)
Tuseyev, Aleksandr
Die Schwalbe, 1973
#2
9 + 9
SOLUTION
- SOUND
- Sets
- 1...Rxa2
- 2.R2d4#
- 1...Ra3
- 2.R2d4#
- 1...Rd4
- 2.R2xd4#
- 1...Ra5
- 2.R2d4#
- 1...Ra6
- 2.R2d4#
- 1...Rxg6
- 2.Rh5#
- 1...Bf3
- 2.Bc2#
- 1...Bb6
- 2.Qxa4#
- 1...Bb8
- 2.Qxa4#
- 1...Sxd2
- 2.Sxc3#
- 1...Sa3
- 2.Sxc3#
- 1...exd5
- 2.Qxd5#
- 1...Rxa2
- Tries
- 1.Kg3?
- threat
- 2.Bc2#
- 1...Rxg6+
- 2.Rg5#
- 1...Rxa2
- 2.R2d4#
- 1...exd5
- 2.Qxd5#
- 1...Rd4
- 2.R2xd4#
- 1...Sa3
- 2.Sxc3#
- 1...c2
- 2.Bxc2#
- 1...Bb8+!
- threat
- 1.Rf5+?
- 1...Rxa8
- 2.Bc2#
- 1...Kxf5+!
- 1...Rxa8
- 1.Rg5+?
- 1...Kf4
- 2.Rh5#
- 1...Rxa8!
- 1...Kf4
- 1.Qc6?
- threat
- 2.Rh5#
- 2.Qxa4#
- 2.Qxe6#
- 1...Rxa2
- 2.R2d4#
- 2.Rh5#
- 2.Qxe6#
- 1...Rxg6
- 2.Rh5#
- 2.Qxa4#
- 1...Bxc5
- 2.Rxc5#
- 2.Rh5#
- 2.Qxe6#
- 1...Sxd2
- 2.Sxc3#
- 2.Qxe6#
- 1...cxd2
- 2.Qxe6#
- 1...exd2
- 2.Qxe6#
- 1...exd5
- 2.Qxd5#
- 2.Qe6#
- 1...e2
- 2.Rh5#
- 1...Ra3
- 2.R2d4#
- 2.Rh5#
- 2.Qxe6#
- 1...Rb4
- 2.Rh5#
- 2.Qxe6#
- 1...Rc4
- 2.Rh5#
- 2.Qxe6#
- 1...Rd4
- 2.R2xd4#
- 2.Qxe6#
- 1...Ra5
- 2.R2d4#
- 2.Rh5#
- 2.Qxe6#
- 1...Ra6
- 2.R2d4#
- 1...Rb8
- 2.Rh5#
- 2.Qxe6#
- 1...Rc8
- 2.Qxa4#
- 2.Qxe6#
- 1...Rd8
- 2.Qxa4#
- 2.Qxe6#
- 1...Re8
- 2.Rh5#
- 2.Qxa4#
- 1...Bb8
- 2.Rh5#
- 2.Qxa4#
- 1...Sa3
- 2.Sxc3#
- 2.Rh5#
- 2.Qxe6#
- 1...e5!
- threat
- 1.Kg3?
- Keys
- 1.Kg4!
- threat
- 2.Bc2#
- 1...Rxg6+
- 2.Rg5#
- 1...Bf3+
- 2.Bxf3#
- 1...Rxa2
- 2.R2d4#
- 1...exd5
- 2.Qxd5#
- 1...Rd4
- 2.R2xd4#
- 1...Sa3
- 2.Sxc3#
- 1...c2
- 2.Bxc2#
- threat
- 1.Kg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- R(e);N_GUARD,XS(B)::R1(C)
- R(e);N_GUARD::R1(C)
- R(e);N_GUARD::R1(C),XR(e)
- R(i);N_GUARD,XP(G)::QAB(I)+R(F)
- B(b);SBLOCK::B(A)
- B(h);OGATE::QAR(I),XR(e)
- S(a);N_GUARD,XR(C)::S(B),XP(c)
- S(a);N_GUARD::S(B),XP(c)
- P(g);OGATE,P_SPINP(g),XR(F)::QAB1(I),XP(g)
- Tries
- Try
- K(D);P_SPINP(G),S_FLIGHT
- Threat
- B(A)
- Vars
- R(i);CHECK,N_GUARD,XP(G)::QAB(I)+R(F)
- R(e);N_GUARD,XS(B)::R1(C)
- P(g);OGATE,P_SPINP(g),XR(F)::QAB1(I),XP(g)
- R(e);N_GUARD::R1(C),XR(e)
- S(a);N_GUARD::S(B),XP(c)
- P(c);::B(A),XP(c)
- Refutation
- B(h);CHECK
- Try
- R(F);CHECK
- Vars
- R(i);XQ(I)::B(A)
- Refutation
- K(f);CHECK,S_FLIGHT,XR(F)
- Try
- R(F);CHECK
- Vars
- K(f);P-FLIGHT,S_CUTR(i)::B(H)+R(F)
- Refutation
- R(i);XQ(I)
- Try
- Q(I);
- Threat
- DUALS(3)
- Vars
- P(c);XR(C)::QAR2(I),XP(g)
- P(d);XR(C)::QAR2(I),XP(g)
- P(d);::QAB(I)+R(F)
- R(e);N_GUARD::R1(C)
- Refutation
- P(g);
- Try
- Actual
- K(D);P-FLIGHT,P_SPINP(G)
- Threat
- B(A)
- Vars
- R(i);CHECK,N_GUARD,XP(G)::QAB(I)+R(F)
- B(b);CHECK,N_GUARD::B(A),XB(b)
- R(e);N_GUARD,XS(B)::R1(C)
- P(g);OGATE,P_SPINP(g),XR(F)::QAB1(I),XP(g)
- R(e);N_GUARD::R1(C),XR(e)
- S(a);N_GUARD::S(B),XP(c)
- P(c);::B(A),XP(c)
Developed and maintained by Brian Stephenson.
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