MESON Chess Problem Database

Problem Display
PID: 17192 (BK6/1NP5/8/R4P2/r3k3/3Rp1P1/1q6/5Qbb w - - 0 1)

Ellerman, Arnoldo

1st Prize, Guidelli MT (L'Alfiere di Re), 1925

BK6/1NP5/8/R4P2/r3k3/3Rp1P1/1q6/5Qbb

#2

9 + 6

56 The Problemist 1928
45 Schach 1950
3147 Chess Problems: Introduction to an Art 1963
5862 An ABC of Chess Problems 1970
3098 FIDE Album (1914-1944) (I) 1971
3364 Solving in Style 1985
273 Mat Plus 1994
4640 Chess Wizardry: The New ABC of Chess Problems 1996
133 The Problemist Supplement 2003
5308 La genialita compositiva di Giorgio Guidelli 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Qa1
      • 2.Sd6#
      • 2.Sd8#
    • 1...Qc1
      • 2.Sd6#
    • 1...Qa3
      • 2.Sd6#
      • 2.Sd8#
    • 1...Qc3
      • 2.Sd6#
    • 1...Qd4
      • 2.Sd6#
    • 1...Qe5
      • 2.Sc5#
      • 2.Sd6#
    • 1...Qf6
      • 2.Sd6#
    • 1...Qg7
      • 2.Sd6#
      • 2.Sd8#
    • 1...Qh8+
      • 2.Sd8#
    • 1...Qa2
      • 2.Sd6#
    • 1...Qc2
      • 2.Sd6#
    • 1...Qd2
      • 2.Sd6#
      • 2.Sd8#
    • 1...Qf2
      • 2.Sd6#
      • 2.Sd8#
    • 1...Qg2
      • 2.Sd6#
      • 2.Sd8#
    • 1...Qh2
      • 2.Sd6#
      • 2.Sd8#
    • 1...Qxb7+
      • 2.Bxb7#
  • Tries
    • 1.Rd1?
      • threat
        • 2.Qf4#
      • 1...Qh8+
        • 2.Sd8#
      • 1...Qxb7+
        • 2.Bxb7#
      • 1...Qf2
        • 2.Sd6#
        • 2.Sd8#
      • 1...Bf2
        • 2.Qxh1#
      • 1...Qe5
        • 2.Sc5#
        • 2.Sd6#
      • 1...Bf3
        • 2.Qd3#
      • 1...Qd2!
    • 1.Rd6?
      • threat
        • 2.Qf4#
      • 1...Qh8+
        • 2.Sd8#
      • 1...Qxb7+
        • 2.Bxb7#
      • 1...Qf2
        • 2.Sd8#
      • 1...Bf2
        • 2.Qxh1#
      • 1...Qe5
        • 2.Sc5#
      • 1...Rd4
        • 2.Re6#
      • 1...Bf3
        • 2.Qd3#
      • 1...Qd4!
    • 1.Rd8?
      • threat
        • 2.Qf4#
      • 1...Qxb7+
        • 2.Bxb7#
      • 1...Bf2
        • 2.Qxh1#
      • 1...Qd4
        • 2.Sd6#
      • 1...Qe5
        • 2.Sc5#
      • 1...Rd4
        • 2.Re8#
      • 1...Bf3
        • 2.Qd3#
      • 1...Qf2!
    • 1.Re5+?
      • 1...Qxe5
        • 2.Sc5#
        • 2.Sd6#
      • 1...Kxe5!
  • Keys
    • 1.Rd7!
      • threat
        • 2.Qf4#
      • 1...Qh8+
        • 2.Sd8#
      • 1...Qxb7+
        • 2.Bxb7#
      • 1...Qf2
        • 2.Sd8#
      • 1...Bf2
        • 2.Qxh1#
      • 1...Qd4
        • 2.Sd6#
      • 1...Qe5
        • 2.Sc5#
      • 1...Rd4
        • 2.Re7#
      • 1...Bf3
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 5
  • Sets
    • Q(c);N_PINS(F)::B(H)+S(F),DCHECK
    • Q(c);CHECK,N_PINS(F)::B(H)+S(F)
    • Q(c);CHECK,OGATE,P_SPINQ(c),XS(F)::B(H),XQ(c)
  • Tries
    • Try
      • R(B);
      • Threat
        • QAR1(A)
      • Vars
        • Q(c);CHECK,N_PINS(F)::B(H)+S(F)
        • Q(c);CHECK,OGATE,P_SPINQ(c),XS(F)::B(H),XQ(c)
        • B(a);OGATE::QAB(A),XB(b)
        • B(b);SBLOCK::QAB1(A)
      • Refutation
        • Q(c);N_PINS(F)
    • Try
      • R(B);
      • Threat
        • QAR1(A)
      • Vars
        • Q(c);CHECK,N_PINS(F)::B(H)+S(F)
        • Q(c);CHECK,OGATE,P_SPINQ(c),XS(F)::B(H),XQ(c)
        • Q(c);N_PINS(F)::B(H)+S(F)
        • B(a);OGATE::QAB(A),XB(b)
        • Q(c);N_PINS(F),SBLOCK::B(H)+S(F),DCHECK
        • R(e);SBLOCK,S_CUTQ(c)::R(B)
        • B(b);SBLOCK::QAB1(A)
      • Refutation
        • Q(c);N_PINS(F)
    • Try
      • R(B);
      • Threat
        • QAR1(A)
      • Vars
        • Q(c);CHECK,OGATE,P_SPINQ(c),XS(F)::B(H),XQ(c)
        • B(a);OGATE::QAB(A),XB(b)
        • Q(c);N_PINS(F),SBLOCK::B(H)+S(F),DCHECK
        • Q(c);N_PINS(F),P_PINP(G),SBLOCK::B(H)+S(F),DCHECK
        • R(e);SBLOCK,S_CUTQ(c)::R(B)
        • B(b);SBLOCK::QAB1(A)
      • Refutation
        • Q(c);N_PINS(F)
    • Try
      • R(D);CHECK
      • Refutation
        • K(f);P-FLIGHT,XR(D)
  • Actual
    • R(B);
    • Threat
      • QAR1(A)
    • Vars
      • Q(c);CHECK,N_PINS(F)::B(H)+S(F)
      • Q(c);CHECK,OGATE,P_SPINQ(c),XS(F)::B(H),XQ(c)
      • Q(c);N_PINS(F)::B(H)+S(F)
      • B(a);OGATE::QAB(A),XB(b)
      • Q(c);N_PINS(F),SBLOCK::B(H)+S(F),DCHECK
      • Q(c);N_PINS(F),P_PINP(G),SBLOCK::B(H)+S(F),DCHECK
      • R(e);SBLOCK,S_CUTQ(c)::R(B)
      • B(b);SBLOCK::QAB1(A)
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