MESON Chess Problem Database

Problem Display
PID: 192895 (5b2/N1rp1rN1/1p2R3/3npp2/R1PkPP2/7p/1n6/B1K1QB2 w - - 0 1)

Rizzetti, Dante Hugo

Il Due Mosse, 1954

5b2/N1rp1rN1/1p2R3/3npp2/R1PkPP2/7p/1n6/B1K1QB2

#2

11 + 11

16325 Seleccion de Problemas de Dante Hugo Rizzetti (Kapros) 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc4+
      • 2.Rxc4#
    • 1...Bc5
      • 2.Sb5#
    • 1...dxe6
      • 2.Sxe6#
  • Tries
    • 1.Rd6?
      • threat
        • 2.Rxd5#
      • 1...Rxc4+
        • 2.Rxc4#
      • 1...Kc5
        • 2.Rxd5#
      • 1...Rc5
        • 2.Bxb2#
      • 1...Bxd6!
    • 1.Qd2+?
      • 1...Kc5
        • 2.Qxd5#
      • 1...Kxe4!
    • 1.Qf2+?
      • 1...Kc3
        • 2.Qxb2#
      • 1...Kxe4
        • 2.Rxe5#
      • 1...Se3!
  • Keys
    • 1.Rxe5!
      • threat
        • 2.Rxd5#
      • 1...Rxc4+
        • 2.Rxc4#
      • 1...Kc5
        • 2.Rxd5#
      • 1...Sxf4
        • 2.Bxb2#
      • 1...Rc5
        • 2.Qd2#
      • 1...Sc3
        • 2.Qf2#
      • 1...Se3
        • 2.Sb5#
        • 2.Bxb2#
        • 2.Qd2#
      • 1...Sb4
        • 2.Sb5#
        • 2.Bxb2#
      • 1...Sf6
        • 2.Sb5#
        • 2.Sxf5#
        • 2.Bxb2#
        • 2.Qd2#
        • 2.c5#
      • 1...Se7
        • 2.Sb5#
        • 2.Bxb2#
        • 2.Qd2#
        • 2.c5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • R(h);CHECK,OGATE,P_SPINR(h),XP(F)::R1(E),XR(h)
    • B(k);N_PINP(F),SBLOCK::S(J)
    • P(i);XR(I)::S(K),XP(i)
  • Tries
    • Try
      • R(I);
      • Threat
        • R1(I),XS(d)
      • Vars
        • R(h);CHECK,OGATE,P_SPINR(h),XP(F)::R1(E),XR(h)
        • K(c);N_PINP(F),N_SPINS(a),S_FLIGHT::R1(I),XS(d)
        • R(h);SBLOCK::B(A),XS(a)
      • Refutation
        • B(k);XR(I)
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);N_PINP(F),N_SPINS(a),OGATE,S_FLIGHT::QAR1(C),XS(d)
      • Refutation
        • K(c);N_SPINS(a),P-FLIGHT,P_SPINP(e),XP(G)
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);N_PINP(F),S_FLIGHT::QAB1(C),XS(a)
        • K(c);N_SPINS(a),P-FLIGHT,P_SPINP(e),XP(G)::R1(I),XP(e)
      • Refutation
        • S(d);
  • Actual
    • R(I);XP(e)
    • Threat
      • R1(I),XS(d)
    • Vars
      • R(h);CHECK,OGATE,P_SPINR(h),XP(F)::R1(E),XR(h)
      • K(c);N_PINP(F),N_SPINS(a),P_SPINS(d),S_FLIGHT::R1(I),XS(d)
      • S(d);N_GUARD,XP(H)::B(A),XS(a)
      • R(h);SBLOCK::QAR2(C)
      • S(d);N_GUARD,N_PINP(F),N_SPINS(a),SBLOCK::QAB(C)
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