MESON Chess Problem Database

Problem Display
PID: 60861 (b2nB2Q/8/4P1N1/2Rp2k1/7N/1r2pKpR/5n1b/2B5 w - - 0 1)

Goldschmeding, Cornelis

1st Prize, Schweizerische Arbeiter Schachzeitung, 1973

b2nB2Q/8/4P1N1/2Rp2k1/7N/1r2pKpR/5n1b/2B5

#2

9 + 9

3753 FIDE Album (1971-1973) 1978

SOLUTION

  • SOUND
  • Sets
    • 1...Rb1
      • 2.Bxe3#
    • 1...Rb2
      • 2.Bxe3#
    • 1...Rb5
      • 2.Bxe3#
    • 1...Rb6
      • 2.Bxe3#
    • 1...Rb7
      • 2.Bxe3#
      • 2.Rxd5#
    • 1...Rb8
      • 2.Bxe3#
    • 1...Sb7
      • 2.Rxd5#
  • Tries
    • 1.Se5?
      • threat
        • 2.Qg7#
      • 1...d4+
        • 2.Sc6#
      • 1...Sxe6
        • 2.Sf7#
      • 1...Rb7
        • 2.Bxe3#
      • 1...Sf7
        • 2.Sxf7#
      • 1...Sxh3!
    • 1.Rxg3+?
      • 1...Sg4
        • 2.Rxg4#
      • 1...Bxg3!
    • 1.Qf6+?
      • 1...Kh5
        • 2.Sf4#
      • 1...Kh6
        • 2.Sf5#
        • 2.Sf8#
      • 1...Kxf6!
    • 1.Qh5+?
      • 1...Kf6
        • 2.Qe5#
      • 1...Kxh5!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Qg7#
      • 1...e2+
        • 2.Sd3#
      • 1...Sxh3
        • 2.Sxh3#
      • 1...Sxe6
        • 2.Sxe6#
      • 1...Rb7
        • 2.Rxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • R(c);N_GUARD::B(A),XP(d)
    • S(i);S_CUTB(h)::R(E),XP(f)
  • Tries
    • Try
      • S(G);
      • Threat
        • QAR2(I)
      • Vars
        • P(f);CHECK::R(E)+S(G)
        • S(i);N_GUARD,XP(F)::S(G)
        • R(c);N_GUARD::B(A),XP(d)
        • S(i);N_GUARD::S(G),XS(i)
      • Refutation
        • S(a);XR(C)
    • Try
      • R(C);CHECK,XP(e)
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::R1(C),XS(a)
      • Refutation
        • B(b);XR(C)
    • Try
      • Q(I);CHECK
      • Vars
        • K(g);N_SPINP(d),P-FLIGHT,P_SPINP(f)::B(H)+S(G),DCHECK
      • Refutation
        • K(g);N_SPINP(d),S_FLIGHT,XQ(I)
    • Try
      • Q(I);CHECK
      • Vars
        • K(g);N_SPINP(d),OGATE,S_FLIGHT::QAB1(I)
      • Refutation
        • K(g);N_SPINP(d),P-FLIGHT,P_SPINP(f),XQ(I)
  • Actual
    • S(G);N_PINP(d),P_PINP(f)
    • Threat
      • QAR2(I)
    • Vars
      • P(d);CHECK::B(A)+S(G)
      • S(a);XR(C)::S(G),XS(a)
      • S(i);XP(F)::S(G),XS(i)
      • R(c);S_CUTB(h)::R(E),XP(f)
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