MESON Chess Problem Database

Problem Display
PID: 35055 (1B4r1/3p4/4Bp2/3PNq1R/1P1k1p2/4bQ1b/2RP1Pn1/1K2N3 w - - 0 1)

Seider, Shlomo

1st Comm., Galitzky MT, 1964

1B4r1/3p4/4Bp2/3PNq1R/1P1k1p2/4bQ1b/2RP1Pn1/1K2N3

#2

12 + 9

3747 FIDE Album (1962-1964) 1968
3841 The Art of Israeli Chess Composition 1983
3674 As in all Arts 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc2+
      • 2.Sxc2#
    • 1...Qd3
      • 2.Ba7#
    • 1...Qe4
      • 2.Ba7#
    • 1...Qg4
      • 2.Ba7#
      • 2.Rc4#
    • 1...Qxe6
      • 2.Rc4#
    • 1...Qg6
      • 2.Ba7#
    • 1...Qh7
      • 2.Ba7#
    • 1...Qxe5
      • 2.Ba7#
    • 1...Qg5
      • 2.Rc4#
    • 1...Qxh5
      • 2.Rc4#
    • 1...fxe5
      • 2.Ba7#
    • 1...dxe6
      • 2.Sc6#
    • 1...d6
      • 2.Sc6#
  • Tries
    • 1.Bxf5?
      • threat
        • 2.Rc4#
        • 2.Qe4#
      • 1...Rxb8
        • 2.Qe4#
      • 1...fxe5
        • 2.Ba7#
        • 2.Qe4#
      • 1...d6
        • 2.Sc6#
        • 2.Qe4#
      • 1...Rc8
        • 2.Qe4#
      • 1...Bxf5!
    • 1.Qe4+?
      • 1...Qxe4
        • 2.Ba7#
      • 1...Kxe4!
  • Keys
    • 1.d6!
      • threat
        • 2.Qd5#
      • 1...Qxc2+
        • 2.Sxc2#
      • 1...Kxe5
        • 2.Qd5#
      • 1...Qxe6
        • 2.Ba7#
      • 1...Qxe5
        • 2.Rc4#
      • 1...dxe6
        • 2.Sc6#
      • 1...Qe4
        • 2.Ba7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • Q(f);CHECK,XR(C)::S(B),XQ(f)
    • Q(f);::B(L)
    • Q(f);N_PINR(C),XB(K)::R1(C)
    • Q(f);N_PINR(C),XS(I)::B(L)
    • Q(f);N_PINR(C)::R1(C)
    • Q(f);N_PINR(C),XR(J)::R1(C)
    • P(g);SBLOCK,XS(I)::B(L)
    • P(h);N_GUARD,XB(K)::S(I)
    • P(h);N_GUARD::S(I)
  • Tries
    • Try
      • B(K);N_SPINR(C),XQ(f)
      • Threat
        • DUALS(2)
      • Vars
        • R(i);P_PINP(G),XB(L)::QAR1(F)
        • R(i);::QAR1(F)
      • Refutation
        • B(c);P_PINR(C),XB(K)
    • Try
      • Q(F);CHECK,N_SPINR(C)
      • Vars
        • Q(f);P_PINR(C),SBLOCK,XQ(F)::B(L)
      • Refutation
        • K(d);P-FLIGHT,XQ(F)
  • Actual
    • P(H);
    • Threat
      • QAR1(F)
    • Vars
      • Q(f);CHECK,XR(C)::S(B),XQ(f)
      • K(d);P_SPINQ(f),S_FLIGHT,XS(I)::QAR1(F)
      • Q(f);N_PINR(C),XB(K)::B(L)
      • Q(f);N_PINR(C),XS(I)::R1(C)
      • P(h);N_GUARD,XB(K)::S(I)
      • Q(f);::B(L)
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