MESON Chess Problem Database

Problem Display
PID: 67208 (3Nrq2/6n1/2pB1Pp1/2N2kp1/K2Qp2r/2R3RP/7b/1B6 w - - 0 1)

Stocchi, Ottavio

Comm., Mari MT, 1954

3Nrq2/6n1/2pB1Pp1/2N2kp1/K2Qp2r/2R3RP/7b/1B6

#2

10 + 10

5407 Selected Stocchi (II) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Rxh3
      • 2.Rcf3#
      • 2.Qf2#
    • 1...Rg4
      • 2.hxg4#
    • 1...Rh5
      • 2.Rcf3#
      • 2.Qf2#
    • 1...Rh6
      • 2.Rcf3#
      • 2.Qf2#
    • 1...Rh7
      • 2.Rcf3#
      • 2.Qf2#
    • 1...Rh8
      • 2.Rcf3#
      • 2.Qf2#
    • 1...Re5
      • 2.Qxe5#
    • 1...Rxd8
      • 2.Qe5#
    • 1...Se6
      • 2.Qe5#
  • Tries
    • 1.Qd5+?
      • 1...Kxf6
        • 2.Sd7#
        • 2.Qxg5#
      • 1...Re5
        • 2.Qxe5#
      • 1...cxd5!
  • Keys
    • 1.Sxe4!
      • threat
        • 2.Rxg5#
      • 1...Qxd6
        • 2.Sxd6#
      • 1...Qxf6
        • 2.Qxf6#
      • 1...Rhxe4
        • 2.Rcf3#
      • 1...Rexe4
        • 2.Rc5#
      • 1...Rxd8
        • 2.Qe5#
      • 1...Bxg3
        • 2.Sxg3#
      • 1...Re5
        • 2.Qxe5#
      • 1...Rg4
        • 2.hxg4#
      • 1...Rh5
        • 2.Rcf3#
        • 2.Qf2#
      • 1...Se6
        • 2.Qe5#
      • 1...g4
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • R(c);OGATE::P(D),XR(c)
    • R(i);N_GUARD::QAR1(F),XR(i)
    • R(i);N_GUARD,XS(J)::QAR1(F)
    • S(h);S_CUTR(i)::QAR1(F)
  • Tries
    • Try
      • Q(F);CHECK
      • Vars
        • R(i);N_GUARD,P_SPINR(i)::QAR1(F),XR(i)
      • Refutation
        • P(f);XQ(F)
  • Actual
    • S(G);XP(b)
    • Threat
      • R1(C),XP(e)
    • Vars
      • Q(j);XB(H)::B(A)+S(G),DCHECK,XQ(j)
      • Q(j);OGATE,XP(I)::QAR1(F),XQ(j)
      • R(c);N_GUARD,P_PINQ(F),P_SPINR(c),XS(G)::R(B)
      • R(i);N_GUARD,P_PINQ(F),P_SPINR(i),XS(G)::R(B)
      • R(i);N_GUARD,XS(J)::QAR1(F)
      • B(a);XR(C)::B(A)+S(G),DCHECK,XB(a)
      • R(i);N_GUARD::QAR1(F),XR(i)
      • R(c);OGATE::P(D),XR(c)
      • S(h);S_CUTR(i)::QAR1(F)
      • P(e);S_CUTR(c)::QAR(F)
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