MESON Chess Problem Database
Problem Display
PID: 148719 (3Nb3/1r3p1q/2p2p2/4kPp1/4Pr2/b3R2p/1p1R1QPB/1B2K3 w - - 0 1)
Kubbel, Leonid Ivanovich (AKA Kubbel, Karl Artur Leonid)
Grantham Journal, 1927
(First published on Sat Oct 22 1927)
#2
10 + 12
| 14868 | Pirnie Collection | 2013 |
SOLUTION
- SOUND
- Sets
- 1...Qxf5
- 2.exf5#
- 1...Rd7
- 2.Sxc6#
- 1...g4
- 2.Bxf4#
- 2.Qxf4#
- 1...c5
- 2.Rd5#
- 1...Qxf5
- Tries
- 1.Ree2?
- threat
- 2.Qd4#
- 1...Rb4
- 2.Qc5#
- 1...Rd7
- 2.Sxc6#
- 1...Bc5
- 2.Qxc5#
- 1...c5
- 2.Rd5#
- 1...Qh4!
- threat
- 1.Rxa3?
- threat
- 2.Qd4#
- 2.Qc5#
- 1...Rb4
- 2.Qc5#
- 1...Rb5
- 2.Qd4#
- 1...Rd7
- 2.Sxc6#
- 1...c5
- 2.Rd5#
- 2.Qxc5#
- 1...Qh4!
- threat
- 1.Rb3?
- threat
- 2.Qd4#
- 1...Rb4
- 2.Qc5#
- 1...Rd7
- 2.Sxc6#
- 1...Bc5
- 2.Qxc5#
- 1...c5
- 2.Rd5#
- 1...Qh4!
- threat
- 1.Rc3?
- threat
- 2.Qd4#
- 1...Rb4
- 2.Rc5#
- 2.Qc5#
- 1...Rd7
- 2.Sxc6#
- 1...Bc5
- 2.Rxc5#
- 2.Qxc5#
- 1...c5
- 2.Rd5#
- 1...Qh4!
- threat
- 1.Rf3?
- threat
- 2.Qd4#
- 1...Rb4
- 2.Qc5#
- 1...Rd7
- 2.Sxc6#
- 1...Bc5
- 2.Qxc5#
- 1...c5
- 2.Rd5#
- 1...Qh4!
- threat
- 1.Rxh3?
- threat
- 2.Qd4#
- 1...Rb4
- 2.Qc5#
- 1...Rd7
- 2.Sxc6#
- 1...Bc5
- 2.Qxc5#
- 1...c5
- 2.Rd5#
- 1...Qh4!
- threat
- 1.Ree2?
- Keys
- 1.Rg3!
- threat
- 2.Qd4#
- 1...Rxe4+
- 2.Re3#
- 1...Rxf2
- 2.Rf3#
- 1...Rxf5
- 2.Rxg5#
- 1...Rf3
- 2.Rxf3#
- 1...Rg4
- 2.Rxg4#
- 1...Rh4
- 2.Rg4#
- 1...Rb4
- 2.Qc5#
- 1...Rd7
- 2.Sxc6#
- 1...Bc5
- 2.Qxc5#
- 1...c5
- 2.Rd5#
- threat
- 1.Rg3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 1
- Sets
- Q(k);OGATE,XP(I)::R(G)+P(H),XQ(k)
- R(i);S_CUTB(l)::S(J),XP(g)
- P(g);N_GUARD::R1(C)
- Tries
- Try
- R(G);
- Threat
- QAB1(D)
- Vars
- R(i);S_CUTB(b)::QAR2(D)
- R(i);S_CUTB(l)::S(J),XP(g)
- B(b);N_GUARD::QAR2(D),XB(b)
- P(g);N_GUARD::R1(C)
- Refutation
- Q(k);P_PINQ(D)
- Try
- R(G);XB(b)
- Threat
- DUALS(2)
- Vars
- R(i);::QAR2(D)
- R(i);::QAB1(D)
- R(i);S_CUTB(l)::S(J),XP(g)
- Refutation
- Q(k);P_PINQ(D)
- Try
- R(G);
- Threat
- QAB1(D)
- Vars
- R(i);S_CUTB(b)::QAR2(D)
- R(i);S_CUTB(l)::S(J),XP(g)
- B(b);N_GUARD::QAR2(D),XB(b)
- P(g);N_GUARD::R1(C)
- Refutation
- Q(k);P_PINQ(D)
- Try
- R(G);
- Threat
- QAB1(D)
- Vars
- R(i);S_CUTB(l)::S(J),XP(g)
- P(g);N_GUARD::R1(C)
- Refutation
- Q(k);P_PINQ(D)
- Try
- R(G);
- Threat
- QAB1(D)
- Vars
- R(i);S_CUTB(b)::QAR2(D)
- R(i);S_CUTB(l)::S(J),XP(g)
- B(b);N_GUARD::QAR2(D),XB(b)
- P(g);N_GUARD::R1(C)
- Refutation
- Q(k);P_PINQ(D)
- Try
- R(G);XP(c)
- Threat
- QAB1(D)
- Vars
- R(i);S_CUTB(b)::QAR2(D)
- R(i);S_CUTB(l)::S(J),XP(g)
- B(b);N_GUARD::QAR2(D),XB(b)
- P(g);N_GUARD::R1(C)
- Refutation
- Q(k);P_PINQ(D)
- Try
- Actual
- R(G);N_PINR(d)
- Threat
- QAB1(D)
- Vars
- R(d);CHECK,OGATEB,XP(H)::B(F)+R(G)
- R(d);OGATEB,XQ(D)::B(F)+R(G)
- R(d);OGATEB,XP(I)::B(F)+R(G),XP(f)
- R(d);OGATEB::B(F)+R(G),XR(d)
- R(d);OGATEB::B(F)+R(G)
- R(i);S_CUTB(b)::QAR2(D)
- R(i);S_CUTB(l)::S(J),XP(g)
- B(b);N_GUARD::QAR2(D),XB(b)
- P(g);N_GUARD::R1(C)
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