MESON Chess Problem Database

Problem Display
PID: 6327 (1Q2n1r1/pB5b/pk3r2/2R2p2/2P5/B1P5/2KR2pb/8 w - - 0 1)

Schiffmann, Israel Abraham

1st Prize, Sports Referee, 1928

1Q2n1r1/pB5b/pk3r2/2R2p2/2P5/B1P5/2KR2pb/8

#2

8 + 10

35 L'Italia Scacchistica 1930
1397 Faszinierendes Schachproblem 1963
3098 FIDE Album (1914-1944) (I) 1971
133 The Problemist Supplement 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6
      • 2.Bxg2#
      • 2.Bf3#
      • 2.Be4#
      • 2.Bd5#
      • 2.Bc6#
      • 2.Ba8#
      • 2.Bc8#
    • 1...Rg3
      • 2.Bxg2#
      • 2.Bf3#
      • 2.Be4#
      • 2.Bd5#
      • 2.Bc6#
      • 2.Ba8#
      • 2.Bc8#
    • 1...Bg1
      • 2.Bxg2#
      • 2.Bf3#
      • 2.Be4#
      • 2.Bd5#
      • 2.Bc6#
      • 2.Ba8#
      • 2.Bc8#
    • 1...Sd6
      • 2.Qc7#
    • 1...Sc7
      • 2.Bc8#
    • 1...f4+
      • 2.Be4#
    • 1...a5
      • 2.Rb5#
  • Tries
    • 1.Bxa6+?
      • 1...Kxa6
        • 2.Qb5#
      • 1...Bxb8!
    • 1.Rd6+?
      • 1...Rxd6
        • 2.Bxg2#
        • 2.Bf3#
        • 2.Be4#
        • 2.Bd5#
        • 2.Bc6#
        • 2.Ba8#
        • 2.Bc8#
      • 1...Sxd6
        • 2.Qc7#
      • 1...Bxd6!
  • Keys
    • 1.Kd3!
      • threat
        • 2.Rb2#
      • 1...Rd6+
        • 2.Bd5#
      • 1...Rg3+
        • 2.Bf3#
      • 1...f4+
        • 2.Be4#
      • 1...Sd6
        • 2.Qc7#
      • 1...Sc7
        • 2.Bc8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(i);N_GUARD,S_CUTB(b)::QAB1(H)
    • S(i);S_CUTB(b)::QAR(H)+B(G)
    • P(c);CHECK,S_CUTB(b)::QAR(H)+B(G)
    • P(d);N_GUARD::R1(F)
  • Tries
    • Try
      • B(G);CHECK,XP(d)
      • Vars
        • K(e);OGATE,P-FLIGHT,XB(G)::QAB1(H)
      • Refutation
        • B(b);XQ(H)
    • Try
      • R(B);CHECK
      • Vars
        • S(i);XR(B)::QAB1(H)
      • Refutation
        • B(b);XR(B)
  • Actual
    • K(A);S_FLIGHT
    • Threat
      • R(B)
    • Vars
      • R(f);CHECK,S_CUTB(b)::QAR(H)+B(G)
      • R(j);CHECK,S_CUTB(b)::QAR(H)+B(G)
      • P(c);CHECK,S_CUTB(b)::QAR(H)+B(G)
      • S(i);N_GUARD,S_CUTB(b)::QAB1(H)
      • S(i);S_CUTB(b)::QAR(H)+B(G)
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