MESON Chess Problem Database
Problem Display
PID: 163153 (3r4/nBNR1p2/PBb2P2/2pr1R1q/2k1p1p1/P1p1p1Pp/2Q1P2K/8 w - - 0 1)
Pitkanen, Jorma
Best Problems, 2013
#2
12 + 13
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.Qa2#
- 1...Rd3
- 2.Qa2#
- 1...Rd4
- 2.Qa2#
- 1...Re5
- 2.Qa2#
- 1...Rxf5
- 2.Qa2#
- 1...Ba4
- 2.Qxa4#
- 1...Bxb7
- 2.Qa4#
- 1...Sb5
- 2.Qa4#
- 1...Rd1
- Tries
- 1.Sb5?
- threat
- 2.Qa4#
- 1...Kxb5
- 2.Qb3#
- 1...Bxb5!
- threat
- 1.Bxc6?
- threat
- 2.Qa4#
- 1...Kd4
- 2.Qa4#
- 1...Sxc6!
- threat
- 1.Rfxd5?
- threat
- 2.Qa2#
- 1...Bxd5
- 2.Qa4#
- 1...Ba4
- 2.Qxa4#
- 1...Qxd5!
- threat
- 1.Rdxd5?
- threat
- 2.Qa2#
- 1...Bxd5
- 2.Qa4#
- 1...Ba4
- 2.Qxa4#
- 1...Rxd5!
- threat
- 1.Qb3+?
- 1...Kd4
- 2.Qb4#
- 1...Kxb3!
- 1...Kd4
- 1.Sb5?
- Keys
- 1.Ba5!
- threat
- 2.Qxc3#
- 1...Kd4
- 2.Qxc3#
- 1...Rd3
- 2.Qa2#
- 1...Sb5
- 2.Qa4#
- threat
- 1.Ba5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- R(h);::QAB(A)
- R(h);XR(F)::QAB(A)
- B(j);N_GUARD::QAR2(A),XB(j)
- B(j);N_GUARD,XB(J)::QAR2(A)
- S(k);S_CUTB(j)::QAR2(A)
- Tries
- Try
- S(K);
- Threat
- QAR2(A)
- Vars
- K(d);N_SPINP(a),S_FLIGHT,XS(K)::QAR2(A)
- Refutation
- B(j);XS(K)
- Try
- B(J);XB(j)
- Threat
- QAR2(A)
- Vars
- K(d);N_SPINP(a),P-FLIGHT,P_SPINP(g),P_SPINR(h)::QAR(A)
- Refutation
- S(k);XB(J)
- Try
- R(F);XR(h)
- Threat
- QAB(A)
- Vars
- B(j);N_GUARD,XR(F)::QAR2(A)
- B(j);N_GUARD::QAR2(A),XB(j)
- Refutation
- Q(i);XR(F)
- Try
- R(L);XR(h)
- Threat
- QAB(A)
- Vars
- B(j);N_GUARD,XR(L)::QAR2(A)
- B(j);N_GUARD::QAR2(A),XB(j)
- Refutation
- R(m);XR(L)
- Try
- Q(A);CHECK,N_PINP(a)
- Vars
- K(d);P-FLIGHT,P_SPINP(g),P_SPINR(h)::QAR2(A)
- Refutation
- K(d);S_FLIGHT,XQ(A)
- Try
- Actual
- B(H);
- Threat
- QAR1(A),XP(a)
- Vars
- K(d);N_SPINP(a),P-FLIGHT,P_SPINR(h)::QAB1(A),XP(a)
- R(h);::QAB(A)
- S(k);S_CUTB(j)::QAR2(A)
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