MESON Chess Problem Database
Problem Display
PID: 146334 (1b1R2KB/8/r7/3P3B/2r1k1N1/n3pRP1/1Q2P3/1b6 w - - 0 1)
Solja, Kenneth
The Problemist, 2012
#2
10 + 7
| 3713 | Snap | 2012 |
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.Qd4#
- 1...Rc2
- 2.Qd4#
- 1...Rd4
- 2.Qxd4#
- 1...Rc5
- 2.Qd4#
- 1...Rcc6
- 2.Qd4#
- 1...Rc7
- 2.Rf4#
- 2.Qd4#
- 2.Qe5#
- 1...Rc8
- 2.Qd4#
- 1...Ra4
- 2.Sf6#
- 2.Bg6#
- 1...Ra5
- 2.Sf6#
- 2.Bg6#
- 1...Rd6
- 2.Qe5#
- 1...Rf6
- 2.Sxf6#
- 1...Rg6+
- 2.Bxg6#
- 1...Ra7
- 2.Sf6#
- 2.Bg6#
- 1...Ra8
- 2.Sf6#
- 2.Bg6#
- 1...Bf4
- 2.Rxf4#
- 1...Be5
- 2.Qxe5#
- 1...Bd6
- 2.Sf6#
- 1...Ba7
- 2.Rf4#
- 2.Qe5#
- 1...Rc1
- Tries
- 1.Be5?
- threat
- 2.Rf4#
- 1...Rg6+
- 2.Bxg6#
- 1...Bxe5
- 2.Qxe5#
- 1...Bd6
- 2.Sf6#
- 1...Rf6
- 2.Sxf6#
- 1...Rd6!
- threat
- 1.Bf6?
- threat
- 2.Bg6#
- 1...Rxf6
- 2.Sxf6#
- 1...Rd6
- 2.Qe5#
- 1...Bd6!
- threat
- 1.Rd6?
- threat
- 2.Sf6#
- 2.Bg6#
- 2.Rf4#
- 2.Qe5#
- 1...Rxd6
- 2.Qe5#
- 1...Bxd6
- 2.Sf6#
- 1...Rc3
- 2.Bg6#
- 2.Rf4#
- 1...Rd4
- 2.Bg6#
- 2.Rf4#
- 2.Qxd4#
- 1...Rc8+!
- threat
- 1.Re8+?
- 1...Re6
- 2.Sf6#
- 1...Be5
- 2.Rxe5#
- 2.Qxe5#
- 1...Kxd5!
- 1...Re6
- 1.Qc3?
- threat
- 2.Qxe3#
- 1...Rg6+
- 2.Bxg6#
- 1...Rd6
- 2.Qe5#
- 1...Bf4
- 2.Rxf4#
- 1...Bd6
- 2.Sf6#
- 1...Bd3
- 2.Qxd3#
- 1...Ba7
- 2.Rf4#
- 2.Qe5#
- 1...Sc2
- 2.Qd3#
- 1...Rxc3!
- threat
- 1.Qf6?
- threat
- 2.Bg6#
- 2.Rxe3#
- 2.Qf5#
- 1...Rd6
- 2.Qe5#
- 2.Qf5#
- 1...Be5
- 2.Qxe5#
- 1...Bd6
- 2.Qf5#
- 1...Rc3
- 2.Bg6#
- 2.Qd4#
- 2.Qf5#
- 1...Bf4
- 2.Bg6#
- 2.Rxf4#
- 2.Qxf4#
- 1...Ba7
- 2.Bg6#
- 2.Rf4#
- 2.Qe5#
- 2.Qf4#
- 2.Qf5#
- 1...Sc2
- 2.Bg6#
- 2.Qf5#
- 1...Rxf6!
- threat
- 1.Qxb8?
- threat
- 2.Rf4#
- 2.Qf4#
- 2.Qe5#
- 1...Rg6+
- 2.Bxg6#
- 1...Rf6
- 2.Qe5#
- 1...Rc7
- 2.Rf4#
- 1...Re6
- 2.Rf4#
- 2.Qf4#
- 1...Rd6!
- threat
- 1.Be5?
- Keys
- 1.Qd2!
- threat
- 2.Qxe3#
- 1...Rg6+
- 2.Bxg6#
- 1...exd2
- 2.Sf2#
- 1...Bf4
- 2.Rxf4#
- 1...Rc3
- 2.Qd4#
- 1...Rd6
- 2.Rf4#
- 1...Bd6
- 2.Bg6#
- 1...Ba7
- 2.Rf4#
- 1...Sc2
- 2.Qd3#
- threat
- 1.Qd2!
Anticipated by 10827(1968)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 4
- REMOVED MATES = 8
- Sets
- R(d);N_GUARD::QAR1(A)
- R(d);N_GUARD::QAR1(A),XR(d)
- R(d);N_GUARD,P_PINR(H)::QAR1(A)
- R(f);S_CUTB(g)::QAR1(A)
- R(f);N_GUARD::S(E),XR(f)
- R(f);CHECK,N_GUARD::B(G),XR(f)
- B(g);N_GUARD::R1(C),XB(g)
- B(g);N_GUARD::QAR1(A),XB(g)
- B(g);S_CUTR(f)::S(E)
- Tries
- Try
- B(J);
- Threat
- R1(C)
- Vars
- R(f);CHECK,N_GUARD::B(G),XR(f)
- B(g);OGATE,XB(J)::QAR1(A),XB(g)
- B(g);S_CUTR(f)::S(E)
- R(f);N_GUARD::S(E),XR(f)
- Refutation
- R(f);
- Try
- B(J);
- Threat
- B(G)
- Vars
- R(f);XB(J)::S(E),XR(f)
- R(f);S_CUTB(g)::QAR1(A)
- Refutation
- B(g);
- Try
- R(H);
- Threat
- DUALS(4)
- Vars
- R(f);XR(H)::QAR1(A)
- B(g);XR(H)::S(E)
- Refutation
- R(d);CHECK
- Try
- R(H);CHECK
- Vars
- R(f);P_SPINR(f)::S(E)
- Refutation
- K(e);S_FLIGHT,XP(F)
- Try
- Q(A);
- Threat
- QAR1(A),XP(c)
- Vars
- R(f);CHECK,N_GUARD::B(G),XR(f)
- R(f);S_CUTB(g)::QAR1(A)
- B(g);N_GUARD::R1(C),XB(g)
- B(g);S_CUTR(f)::S(E)
- B(a);N_GUARD::QAB1(A),XB(a)
- S(b);S_CUTB(a)::QAB1(A)
- Refutation
- R(d);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- B(g);N_GUARD::QAR1(A),XB(g)
- B(g);::QAB1(A)
- Refutation
- R(f);XQ(A)
- Try
- Q(A);XB(g)
- Threat
- DUALS(3)
- Vars
- R(f);CHECK,N_GUARD::B(G),XR(f)
- R(f);::QAR1(A)
- R(d);::R1(C)
- Refutation
- R(f);
- Try
- Actual
- Q(A);
- Threat
- QAR1(A),XP(c)
- Vars
- R(f);CHECK,N_GUARD::B(G),XR(f)
- P(c);N_GUARD,XQ(A)::S(E)
- B(g);N_GUARD::R1(C),XB(g)
- R(d);N_GUARD::QAR1(A)
- R(f);S_CUTB(g)::R1(C)
- B(g);S_CUTR(f)::B(G)
- B(g);N_GUARD::R1(C)
- S(b);S_CUTB(a)::QAB1(A)
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