MESON Chess Problem Database

Problem Display
PID: 265277 (1r6/1R3Q2/k1PN4/3n2Rq/3p4/1K1Nr3/4B3/4B3 w - - 0 1)

Bottacchi, Antonio

2nd Prize, La Settimana Enigmistica, 1934

1r6/1R3Q2/k1PN4/3n2Rq/3p4/1K1Nr3/4B3/4B3

#2

9 + 6

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe2
      • 2.Sc5#
    • 1...Rxd3+
      • 2.Bxd3#
    • 1...Re4
      • 2.Sc5#
    • 1...Re5
      • 2.Sc5#
    • 1...Re6
      • 2.Sc5#
    • 1...Re7
      • 2.Sc5#
    • 1...Ree8
      • 2.Sc5#
    • 1...Rxb7+
      • 2.Qxb7#
    • 1...Sc3
      • 2.Sb4#
    • 1...Sb4
      • 2.Qc4#
    • 1...Sf4
      • 2.Qc4#
    • 1...Sb6
      • 2.Ra7#
    • 1...Sf6
      • 2.Qc4#
    • 1...Se7
      • 2.Qc4#
  • Tries
    • 1.Bc3?
      • threat
        • 2.Sc5#
      • 1...Rxb7+
        • 2.Qxb7#
      • 1...Rxd3
        • 2.Bxd3#
      • 1...Sxc3
        • 2.Sb4#
      • 1...Sb4
        • 2.Sxb4#
        • 2.Qc4#
      • 1...dxc3!
    • 1.Qc7?
      • threat
        • 2.Qa5#
      • 1...Rxd3+
        • 2.Bxd3#
      • 1...Rxb7+
        • 2.Qxb7#
      • 1...Sb6
        • 2.Ra7#
        • 2.Qxb6#
      • 1...Sxc7!
  • Keys
    • 1.Se4!
      • threat
        • 2.Sc5#
      • 1...Rxd3+
        • 2.Bxd3#
      • 1...Rxb7+
        • 2.Qxb7#
      • 1...Rxe4
        • 2.Sc5#
      • 1...Sc3
        • 2.Sb4#
      • 1...Sb4
        • 2.Qc4#
      • 1...Sb6
        • 2.Ra7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 8
  • Sets
    • R(a);N_PINS(D),XB(B)::S(D)
    • R(a);CHECK,OGATE,P_SPINR(a),XS(D)::B(B),XR(a)
    • R(a);N_PINS(D)::B(B)+S(D),DCHECK
    • R(f);CHECK,OGATE,XR(H)::QAB1(I),XR(f)
    • S(c);N_PINS(D)::B(B)+S(D),DCHECK
    • S(c);N_PINR(H),OGATE::QAB(I)
    • S(c);OGATE::QAB(I)
    • S(c);N_PINR(H),SBLOCK::R1(H)
  • Tries
    • Try
      • B(A);N_SPINS(D)
      • Threat
        • B(B)+S(D),DCHECK
      • Vars
        • R(f);CHECK,OGATE,XR(H)::QAB1(I),XR(f)
        • R(a);OGATE,P_PINB(A),P_SPINR(a),XS(D)::B(B),XR(a)
        • S(c);XB(A)::B(B)+S(D),DCHECK
      • Refutation
        • P(b);XB(A)
    • Try
      • Q(I);
      • Threat
        • QAR1(I)
      • Vars
        • R(a);CHECK,OGATE,P_SPINR(a),XS(D)::B(B),XR(a)
        • R(f);CHECK,OGATE,XR(H)::QAB1(I),XR(f)
      • Refutation
        • S(c);XQ(I)
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • R(a);CHECK,OGATE,P_SPINR(a),XS(D)::B(B),XR(a)
      • R(f);CHECK,OGATE,XR(H)::QAB1(I),XR(f)
      • R(a);N_PINS(D),XS(G)::B(B)+S(D),DCHECK
      • S(c);N_PINS(D)::B(B)+S(D),DCHECK
      • S(c);N_PINR(H),OGATE::QAB(I)
      • S(c);N_PINR(H),SBLOCK::R1(H)
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