MESON Chess Problem Database

Problem Display
PID: 46513 (6bK/1p6/q2r1p2/8/1r2Q1p1/2B1P2N/6Rp/R1N2k1n w - - 0 1)

Goldschmeding, Cornelis

2nd HM., Tijdschrift vd KNSB, 1960

6bK/1p6/q2r1p2/8/1r2Q1p1/2B1P2N/6Rp/R1N2k1n

#2

8 + 10

3749 FIDE Album (1959-1961) 1966

SOLUTION

  • SOUND
  • Sets
    • 1...Sf2
      • 2.Rxf2#
    • 1...Sg3
      • 2.Rf2#
  • Tries
    • 1.Sa2+?
      • 1...Rd1
        • 2.Rxd1#
      • 1...Rb1!
    • 1.Sb3+?
      • 1...Rd1
        • 2.Rxd1#
      • 1...Qxa1!
    • 1.Sd3+?
      • 1...Rb1
        • 2.Rxb1#
      • 1...Qxa1!
    • 1.Rga2?
      • threat
        • 2.Qxh1#
        • 2.Qg2#
      • 1...Qxa2
        • 2.Qxh1#
      • 1...Rxe4
        • 2.Sd3#
      • 1...Bxa2
        • 2.Qxh1#
      • 1...gxh3
        • 2.Qxh1#
      • 1...Rd2
        • 2.Qxh1#
      • 1...Qe2
        • 2.Qxh1#
      • 1...Rb2
        • 2.Qxh1#
      • 1...Bd5
        • 2.Sb3#
      • 1...Sf2
        • 2.Rxf2#
      • 1...Sg3
        • 2.Rf2#
        • 2.Qg2#
      • 1...Qc6!
    • 1.Rb2?
      • threat
        • 2.Qxh1#
        • 2.Qg2#
      • 1...Rxb2
        • 2.Qxh1#
      • 1...gxh3
        • 2.Qxh1#
      • 1...Rd2
        • 2.Qxh1#
      • 1...Qe2
        • 2.Qxh1#
      • 1...Qc6
        • 2.Sd3#
      • 1...Bd5
        • 2.Sa2#
      • 1...Sf2
        • 2.Rxf2#
      • 1...Sg3
        • 2.Rf2#
        • 2.Qg2#
      • 1...Rxe4!
    • 1.Re2?
      • threat
        • 2.Re1#
        • 2.Qxh1#
        • 2.Qg2#
      • 1...Qxe2
        • 2.Qxh1#
      • 1...gxh3
        • 2.Qxh1#
      • 1...Qc6
        • 2.Re1#
      • 1...Rd1
        • 2.Qxh1#
        • 2.Qg2#
      • 1...Rd2
        • 2.Qxh1#
        • 2.Qg2#
      • 1...Bd5
        • 2.Re1#
      • 1...Sf2
        • 2.Re1#
        • 2.Rxf2#
      • 1...Sg3
        • 2.Re1#
        • 2.Rf2#
        • 2.Qg2#
      • 1...Rxe4!
    • 1.Rxh2?
      • threat
        • 2.Rxh1#
        • 2.Qxh1#
        • 2.Qg2#
      • 1...gxh3
        • 2.Qxh1#
      • 1...Rd2
        • 2.Rxh1#
        • 2.Qxh1#
      • 1...Qe2
        • 2.Rxh1#
        • 2.Qxh1#
      • 1...Qa2
        • 2.Rxh1#
        • 2.Qxh1#
      • 1...Qc6
        • 2.Rxh1#
      • 1...Rb2
        • 2.Rxh1#
        • 2.Qxh1#
      • 1...Bd5
        • 2.Rxh1#
      • 1...Sf2
        • 2.Rxf2#
        • 2.Qg2#
      • 1...Sg3
        • 2.Rf2#
        • 2.Qg2#
      • 1...Rxe4!
    • 1.Qf3+?
      • 1...Sf2
        • 2.Rxf2#
        • 2.Qxf2#
      • 1...gxf3!
  • Keys
    • 1.Rd2!
      • threat
        • 2.Qxh1#
      • 1...Ke1
        • 2.Sd3#
      • 1...Rxe4
        • 2.Sa2#
      • 1...Qc6
        • 2.Sb3#
      • 1...Bd5
        • 2.Rd1#
      • 1...Sf2
        • 2.Rxf2#
      • 1...Sg3
        • 2.Rf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD::R1(C),XS(b)
    • S(b);N_GUARD::R1(C)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • R(g);N_GUARD,P_SPINR(g)::R(A),XR(g)
      • Refutation
        • R(d);P_SPINR(d)
    • Try
      • S(B);CHECK
      • Vars
        • R(g);N_GUARD,P_SPINR(g)::R(A),XR(g)
      • Refutation
        • Q(f);XR(A)
    • Try
      • S(B);CHECK
      • Vars
        • R(d);N_GUARD,P_SPINR(d)::R(A),XR(d)
      • Refutation
        • Q(f);XR(A)
    • Try
      • R(C);
      • Threat
        • DUALS(2)
      • Vars
        • Q(f);XR(C)::QAR2(G),XS(b)
        • R(d);N_GUARD,XQ(G)::R(A)+S(B)
        • B(j);XR(C)::QAR2(G),XS(b)
        • P(e);XS(F)::QAR2(G),XS(b)
        • R(g);::QAR2(G),XS(b)
        • Q(f);::QAR2(G),XS(b)
        • R(d);::QAR2(G),XS(b)
        • B(j);S_CUTR(g)::R(A)+S(B)
        • S(b);N_GUARD::R1(C),XS(b)
      • Refutation
        • Q(f);
    • Try
      • R(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(d);XR(C)::QAR2(G),XS(b)
        • P(e);XS(F)::QAR2(G),XS(b)
        • R(g);::QAR2(G),XS(b)
        • Q(f);::QAR2(G),XS(b)
        • Q(f);N_GUARD::R(A)+S(B)
        • B(j);S_CUTR(g)::R(A)+S(B)
        • S(b);N_GUARD::R1(C),XS(b)
      • Refutation
        • R(d);XQ(G)
    • Try
      • R(C);
      • Threat
        • DUALS(3)
      • Vars
        • Q(f);XR(C)::QAR2(G),XS(b)
        • P(e);XS(F)::QAR2(G),XS(b)
        • Q(f);::R1(C)
        • B(j);::R1(C)
      • Refutation
        • R(d);XQ(G)
    • Try
      • R(C);XP(c)
      • Threat
        • DUALS(3)
      • Vars
        • P(e);XS(F)::QAR2(G),XS(b)
        • Q(f);::R(C),XS(b)
        • B(j);::R(C),XS(b)
      • Refutation
        • R(d);XQ(G)
    • Try
      • Q(G);CHECK
      • Refutation
        • P(e);XQ(G)
  • Actual
    • R(C);
    • Threat
      • QAR2(G),XS(b)
    • Vars
      • K(a);P-FLIGHT::R(A)+S(B),DCHECK
      • R(d);N_GUARD,XQ(G)::R(A)+S(B)
      • Q(f);N_GUARD::R(A)+S(B)
      • B(j);S_CUTR(g)::R(C)
      • S(b);N_GUARD::R1(C),XS(b)
      • S(b);N_GUARD::R1(C)
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