MESON Chess Problem Database
Problem Display
PID: 54904 (rk5K/p1R4P/P2r4/B1P1N3/3Q4/p7/Pb6/1R6 w - - 0 1)
Penrose, Lionel Sharples
L'Italia Scacchistica, 1955
#2
10 + 6
| 3105 | FIDE Album (1945-1955) | 1964 |
SOLUTION
- SOUND
- Sets
- 1...Rxd4
- 2.Sc6#
- 1...Rd5
- 2.Sc6#
- 2.Qb4#
- 1...Rxa6
- 2.Sd7#
- 2.Qd8#
- 1...Rb6
- 2.Qd8#
- 1...Rc6
- 2.Sxc6#
- 2.Sd7#
- 2.Qd8#
- 1...Re6
- 2.Sd7#
- 2.Qd8#
- 1...Rf6
- 2.Sd7#
- 2.Qd8#
- 1...Rg6
- 2.Sd7#
- 2.Qd8#
- 1...Rh6
- 2.Sd7#
- 2.Qd8#
- 1...Rd7
- 2.Sc6#
- 2.Sxd7#
- 2.Qb4#
- 1...Rd8+
- 2.Qxd8#
- 1...Rxd4
- Tries
- 1.Kg7?
- 1...Rd7+
- 2.Sxd7#
- 1...Rxd4
- 2.Sc6#
- 1...Rxa6
- 2.Sd7#
- 2.Qd8#
- 2.h8Q#
- 2.h8R#
- 1...Rb6
- 2.Qd8#
- 1...Rd5
- 2.Sc6#
- 2.Qb4#
- 1...Rc6
- 2.Sxc6#
- 2.Sd7#
- 2.Qd8#
- 2.h8Q#
- 2.h8R#
- 1...Re6
- 2.Sd7#
- 2.Qd8#
- 1...Rf6
- 2.Sd7#
- 2.Qd8#
- 1...Rh6
- 2.Sd7#
- 2.Qd8#
- 1...Rd8
- 2.Sc6#
- 2.Qb4#
- 2.Qxd8#
- 1...Rg6+!
- 1...Rd7+
- 1.Kg8?
- 1...Rd8+
- 2.Qxd8#
- 1...Rxd4
- 2.Sc6#
- 1...Rxa6
- 2.Sd7#
- 2.Qd8#
- 1...Rb6
- 2.Qd8#
- 1...Rd5
- 2.Sc6#
- 2.Qb4#
- 1...Rc6
- 2.Sxc6#
- 2.Sd7#
- 2.Qd8#
- 1...Re6
- 2.Sd7#
- 2.Qd8#
- 1...Rf6
- 2.Sd7#
- 2.Qd8#
- 1...Rh6
- 2.Sd7#
- 2.Qd8#
- 1...Rd7
- 2.Sc6#
- 2.Sxd7#
- 2.Qb4#
- 1...Rg6+!
- 1...Rd8+
- 1.Rxb2+?
- 1...Rb6
- 2.Qd8#
- 1...axb2!
- 1...Rb6
- 1.Qd2?
- 1...Rd8+
- 2.Qxd8#
- 1...Rxa6
- 2.Qd8#
- 1...Rb6
- 2.Qd8#
- 1...Rd3
- 2.Qb4#
- 1...Rd4
- 2.Sc6#
- 1...Rd5
- 2.Qb4#
- 1...Rc6
- 2.Qd8#
- 1...Re6
- 2.Qd8#
- 1...Rf6
- 2.Sd7#
- 2.Qd8#
- 1...Rg6
- 2.Qd8#
- 1...Rh6
- 2.Qd8#
- 1...Rd7
- 2.Qb4#
- 1...Rxd2!
- 1...Rd8+
- 1.Qd3?
- 1...Rd8+
- 2.Qxd8#
- 1...Rxa6
- 2.Qd8#
- 1...Rb6
- 2.Qd8#
- 1...Rd4
- 2.Sc6#
- 2.Qb5#
- 1...Rd5
- 2.Qb5#
- 2.Qb3#
- 1...Rc6
- 2.Qd8#
- 1...Re6
- 2.Qd8#
- 1...Rf6
- 2.Sd7#
- 2.Qd8#
- 1...Rg6
- 2.Qd8#
- 1...Rh6
- 2.Qd8#
- 1...Rd7
- 2.Qb5#
- 2.Qb3#
- 1...Rxd3!
- 1...Rd8+
- 1.Qd5?
- threat
- 2.Qb7#
- 1...Rd8+
- 2.Qxd8#
- 1...Rb6
- 2.Qd8#
- 1...Rc6
- 2.Qg8#
- 2.Qd8#
- 1...Rxd5!
- threat
- 1.Kg7?
- Keys
- 1.Qh4!
- 1...Rd8+
- 2.Qxd8#
- 1...Rxa6
- 2.Qd8#
- 1...Rb6
- 2.Qd8#
- 1...Rd1
- 2.Qb4#
- 1...Rd2
- 2.Qb4#
- 1...Rd3
- 2.Qb4#
- 1...Rd4
- 2.Sc6#
- 1...Rd5
- 2.Qb4#
- 1...Rc6
- 2.Qd8#
- 1...Re6
- 2.Qd8#
- 1...Rf6
- 2.Sd7#
- 1...Rg6
- 2.Qd8#
- 1...Rh6
- 2.Qd8#
- 1...Rd7
- 2.Qb4#
- 1...Rd8+
- 1.Qh4!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 11
- REMOVED MATES = 0
- Sets
- R(c);N_GUARD,XQ(C)::S(F)
- R(c);N_SPINB(a),OGATE::QAR2(C)
- R(c);CHECK,OGATE::QAR2(C),XR(c)
- Tries
- Try
- K(J);S_FLIGHT
- Vars
- R(c);CHECK,N_GUARD::S(F),XR(c)
- R(c);N_GUARD,XQ(C)::S(F)
- R(c);N_SPINB(a),OGATE::QAR2(C)
- Refutation
- R(c);CHECK
- Try
- K(J);P-FLIGHT
- Vars
- R(c);CHECK,OGATE::QAR2(C),XR(c)
- R(c);N_GUARD,XQ(C)::S(F)
- R(c);N_SPINB(a),OGATE::QAR2(C)
- Refutation
- R(c);CHECK
- Try
- R(A);CHECK,XB(a)
- Vars
- R(c);OGATE,P_SPINR(c)::QAR2(C)
- Refutation
- P(b);XR(A)
- Try
- Q(C);P_SPINS(F)
- Vars
- R(c);CHECK,OGATE::QAR2(C),XR(c)
- R(c);OGATE,XP(G)::QAR2(C)
- R(c);N_SPINB(a),OGATE::QAR2(C)
- R(c);N_GUARD::QAR(C)
- R(c);N_PINS(F)::S(F)
- R(c);OGATE::QAR2(C)
- R(c);OGATE,P_PINP(I)::QAR2(C)
- Refutation
- R(c);XQ(C)
- Try
- Q(C);P_SPINS(F)
- Vars
- R(c);CHECK,OGATE::QAR2(C),XR(c)
- R(c);OGATE,XP(G)::QAR2(C)
- R(c);N_SPINB(a),OGATE::QAR2(C)
- R(c);OGATE::QAR2(C)
- R(c);OGATE,P_PINP(I)::QAR2(C)
- Refutation
- R(c);XQ(C)
- Try
- Q(C);P_SPINS(F)
- Threat
- QAR1(C)
- Vars
- R(c);CHECK,OGATE::QAR2(C),XR(c)
- R(c);N_SPINB(a),OGATE::QAR2(C)
- Refutation
- R(c);XQ(C)
- Try
- Actual
- Q(C);P_SPINS(F)
- Vars
- R(c);CHECK,N_GUARD::QAR2(C),XR(c)
- R(c);N_GUARD,XP(G)::QAR2(C)
- R(c);N_GUARD,N_SPINB(a)::QAR2(C)
- R(c);N_GUARD::QAR(C)
- R(c);N_PINS(F)::S(F)
- R(c);N_GUARD::QAR2(C)
- R(c);N_GUARD,P_PINP(I)::QAR2(C)
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