MESON Chess Problem Database
Problem Display
PID: 16452 (n5K1/3RRpp1/2k3r1/Pp1N2r1/1BbP4/5N2/8/2Q4B w - - 0 1)
Ponomarev, Rashid Garifovich
Shakhmaty v SSSR, 1940
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Se5#
- 1...Rg2
- 2.Se5#
- 1...Rg3
- 2.Se5#
- 1...Rg4
- 2.Se5#
- 1...Rxd5
- 2.Se5#
- 1...Re5
- 2.Sxe5#
- 1...Rd6
- 2.Rxd6#
- 1...f5
- 2.Se5#
- 1...f6
- 2.Rd6#
- 1...Rg1
- Tries
- 1.Se3?
- threat
- 2.Se5#
- 2.Sxg5#
- 1...f5+
- 2.d5#
- 1...Sc7
- 2.Se5#
- 2.Rxc7#
- 1...Rg2
- 2.Se5#
- 2.d5#
- 1...Rg1
- 2.Se5#
- 2.d5#
- 1...Rg3
- 2.Se5#
- 2.d5#
- 1...Rg4
- 2.Se5#
- 2.d5#
- 1...Rc5
- 2.Se5#
- 1...Rd5
- 2.Se5#
- 1...Re5
- 2.Sxe5#
- 1...Rf5
- 2.Se5#
- 1...Rh5
- 2.Se5#
- 1...Rd6
- 2.Se5#
- 2.Rxd6#
- 1...Re6
- 2.Se5#
- 1...Rf6
- 2.Se5#
- 1...Rh6
- 2.Se5#
- 1...Sb6
- 2.Se5#
- 2.Rc7#
- 1...f6+!
- threat
- 1.Sf4?
- threat
- 2.Se5#
- 2.Sxg5#
- 1...f5+
- 2.d5#
- 1...Sc7
- 2.Se5#
- 2.Rxc7#
- 1...Rg2
- 2.Se5#
- 2.d5#
- 1...Rg1
- 2.Se5#
- 2.d5#
- 1...Rg3
- 2.Se5#
- 2.d5#
- 1...Rg4
- 2.Se5#
- 2.d5#
- 1...Rc5
- 2.Se5#
- 1...Rd5
- 2.Se5#
- 1...Re5
- 2.Sxe5#
- 1...Rf5
- 2.Se5#
- 1...Rh5
- 2.Se5#
- 1...Rd6
- 2.Se5#
- 2.Rxd6#
- 1...Re6
- 2.Se5#
- 1...Rh6
- 2.Se5#
- 1...Sb6
- 2.Se5#
- 2.Rc7#
- 1...f6+!
- threat
- 1.Sf6?
- threat
- 2.Se5#
- 2.Sxg5#
- 2.Rd6#
- 1...Rxf6
- 2.Se5#
- 1...Sc7
- 2.Se5#
- 2.Rxc7#
- 1...Rg2
- 2.Se5#
- 2.Rd6#
- 2.d5#
- 1...Rg1
- 2.Se5#
- 2.Rd6#
- 2.d5#
- 1...Rg3
- 2.Se5#
- 2.Rd6#
- 2.d5#
- 1...Rg4
- 2.Se5#
- 2.Rd6#
- 2.d5#
- 1...Rc5
- 2.Se5#
- 1...Rd5
- 2.Se5#
- 1...Re5
- 2.Sxe5#
- 2.Rd6#
- 1...Rf5
- 2.Se5#
- 2.Rd6#
- 1...Rh5
- 2.Se5#
- 2.Rd6#
- 1...Rh6
- 2.Se5#
- 2.Rd6#
- 1...Sb6
- 2.Se5#
- 2.Rd6#
- 2.Rc7#
- 1...gxf6+!
- threat
- 1.Ba3?
- threat
- 2.Sb4#
- 1...Rxd5
- 2.Se5#
- 1...b4
- 2.Qxc4#
- 1...f5
- 2.Se5#
- 1...f6
- 2.Rd6#
- 1...Sc7!
- threat
- 1.Qxg5?
- threat
- 2.Se5#
- 1...Rxg5
- 2.Rd6#
- 1...Sc7
- 2.Rxc7#
- 1...f6
- 2.Rd6#
- 1...Re6!
- threat
- 1.Se3?
- Keys
- 1.Sb6!
- threat
- 2.Se5#
- 2.Sxg5#
- 1...f5+
- 2.d5#
- 1...f6+
- 2.Re6#
- 1...Sxb6
- 2.Se5#
- 1...Sc7
- 2.Se5#
- 2.Rxc7#
- 1...Rg2
- 2.Se5#
- 2.d5#
- 1...Rg1
- 2.Se5#
- 2.d5#
- 1...Rg3
- 2.Se5#
- 2.d5#
- 1...Rg4
- 2.Se5#
- 2.d5#
- 1...Rc5
- 2.Se5#
- 1...Rd5
- 2.Se5#
- 1...Re5
- 2.Sxe5#
- 1...Rf5
- 2.Se5#
- 1...Rh5
- 2.Se5#
- 1...Rd6
- 2.Se5#
- 2.Rxd6#
- 1...Re6
- 2.Se5#
- 1...Rf6
- 2.Se5#
- 1...Rh6
- 2.Se5#
- threat
- 1.Sb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 7
- REMOVED MATES = 5
- Sets
- R(c);N_GUARD::S(C)
- R(c);N_GUARD,XS(G)::S(C)
- R(c);N_GUARD::S(C),XR(c)
- R(e);N_GUARD::R1(H),XR(e)
- P(f);P_PINS(G),S_CUTR(c)::S(C)
- P(f);P_PINS(G),S_CUTR(e)::R1(H)
- Tries
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- P(f);CHECK,S_CUTR(c)::P(E)
- R(c);N_SPINB(a)::B(B)+S(C),DCHECK
- R(c);::S(C)
- R(c);::B(B)+S(C),DCHECK,XR(c)
- R(c);::B(B)+S(C),DCHECK
- R(e);::B(B)+S(C),DCHECK
- Refutation
- P(f);CHECK
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- P(f);CHECK,S_CUTR(c)::P(E)
- R(c);N_SPINB(a)::B(B)+S(C),DCHECK
- R(c);::S(C)
- R(c);::B(B)+S(C),DCHECK,XR(c)
- R(c);::B(B)+S(C),DCHECK
- R(e);::B(B)+S(C),DCHECK
- Refutation
- P(f);CHECK
- Try
- S(G);
- Threat
- DUALS(3)
- Vars
- R(e);XS(G)::B(B)+S(C),DCHECK
- R(c);N_SPINB(a)::B(B)+S(C),DCHECK
- R(c);::S(C)
- Refutation
- P(g);CHECK,XS(G)
- Try
- B(D);
- Threat
- S(G)
- Vars
- R(c);N_GUARD,XS(G)::S(C)
- P(b);N_GUARD::QAR2(A),XB(a)
- P(f);P_PINS(G),S_CUTR(c)::S(C)
- P(f);P_PINS(G),S_CUTR(e)::R1(H)
- Refutation
- S(h);
- Try
- Q(A);N_PINB(a),XR(c)
- Threat
- S(C)
- Vars
- R(e);N_GUARD,XQ(A)::R1(H)
- S(h);N_GUARD::R1(H),XS(h)
- P(f);P_PINS(G),S_CUTR(e)::R1(H)
- Refutation
- R(e);
- Try
- Actual
- S(G);
- Threat
- DUALS(2)
- Vars
- P(f);CHECK,S_CUTR(c)::P(E)
- P(f);CHECK,N_GUARD,S_CUTR(e)::R(I)
- S(h);XS(G)::B(B)+S(C),DCHECK
- R(c);N_SPINB(a)::B(B)+S(C),DCHECK
- R(c);::S(C)
- R(c);::B(B)+S(C),DCHECK,XR(c)
- R(c);::B(B)+S(C),DCHECK
- R(e);::B(B)+S(C),DCHECK
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