MESON Chess Problem Database

Problem Display
PID: 35056 (2r2B2/3n4/2p2p2/Q1p1kp2/3p1N2/1R1P1nP1/BK6/8 w - - 0 1)

Seider, Shlomo

Europe Echecs, 1965

2r2B2/3n4/2p2p2/Q1p1kp2/3p1N2/1R1P1nP1/BK6/8

#2

8 + 9

3674 As in all Arts 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Rc7
      • 2.Qxc7#
    • 1...Ra8
      • 2.Qc7#
    • 1...Rb8
      • 2.Qc7#
    • 1...Rd8
      • 2.Qc7#
    • 1...Re8
      • 2.Qc7#
    • 1...Rxf8
      • 2.Qc7#
    • 1...Se1
      • 2.Qxe1#
    • 1...Sh2
      • 2.Qe1#
    • 1...Sh4
      • 2.Qe1#
    • 1...Sb8
      • 2.Qxc5#
    • 1...Sxf8
      • 2.Qxc5#
  • Tries
    • 1.Sg6+?
      • 1...Kd5
        • 2.Ra3#
        • 2.Rc3#
        • 2.Rb4#
        • 2.Rb5#
        • 2.Rb6#
        • 2.Rb7#
        • 2.Rb8#
      • 1...Ke6!
    • 1.Ra3?
      • threat
        • 2.Sg6#
      • 1...Rxf8
        • 2.Qc7#
      • 1...Sxf8
        • 2.Qxc5#
      • 1...Sh4
        • 2.Qe1#
      • 1...Rb8+!
    • 1.Rb4?
      • threat
        • 2.Sg6#
      • 1...Rxf8
        • 2.Qc7#
      • 1...Sxf8
        • 2.Qxc5#
      • 1...Sh4!
    • 1.Rb5?
      • threat
        • 2.Sg6#
      • 1...Rxf8
        • 2.Qc7#
      • 1...Sh4
        • 2.Qe1#
      • 1...Sxf8!
    • 1.Rb6?
      • threat
        • 2.Sg6#
      • 1...Sxf8
        • 2.Qxc5#
      • 1...Sh4
        • 2.Qe1#
      • 1...Rxf8!
    • 1.Rb8?
      • threat
        • 2.Sg6#
      • 1...Rxf8
        • 2.Qc7#
      • 1...Sxf8
        • 2.Qxc5#
      • 1...Sh4
        • 2.Qe1#
      • 1...Rxb8+!
  • Keys
    • 1.Rb7!
      • threat
        • 2.Sg6#
      • 1...Rxf8
        • 2.Qc7#
      • 1...Sxf8
        • 2.Qxc5#
      • 1...Sh4
        • 2.Qe1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 8
  • Sets
    • R(i);N_GUARD::QAB(G),XR(i)
    • R(i);N_GUARD::QAB(G)
    • R(i);N_GUARD,P_PINR(C)::QAB(G)
    • R(i);N_GUARD,XB(H)::QAB(G)
    • S(a);N_GUARD::QAR(G),XS(a)
    • S(a);N_GUARD::QAR(G)
    • S(h);N_GUARD::QAR2(G),XP(c)
    • S(h);N_GUARD,XB(H)::QAR2(G),XP(c)
  • Tries
    • Try
      • S(F);CHECK
      • Refutation
        • K(d);N_SPINP(c),P-FLIGHT
    • Try
      • R(C);
      • Threat
        • S(F)
      • Vars
        • R(i);N_GUARD,XB(H)::QAB(G)
        • S(h);N_GUARD,XB(H)::QAR2(G),XP(c)
        • S(a);N_GUARD::QAR(G)
      • Refutation
        • R(i);CHECK
    • Try
      • R(C);
      • Threat
        • S(F)
      • Vars
        • R(i);N_GUARD,XB(H)::QAB(G)
        • S(h);N_GUARD,XB(H)::QAR2(G),XP(c)
      • Refutation
        • S(a);
    • Try
      • R(C);
      • Threat
        • S(F)
      • Vars
        • R(i);N_GUARD,XB(H)::QAB(G)
        • S(a);N_GUARD::QAR(G)
      • Refutation
        • S(h);XB(H)
    • Try
      • R(C);
      • Threat
        • S(F)
      • Vars
        • S(h);N_GUARD,XB(H)::QAR2(G),XP(c)
        • S(a);N_GUARD::QAR(G)
      • Refutation
        • R(i);XB(H)
    • Try
      • R(C);
      • Threat
        • S(F)
      • Vars
        • R(i);N_GUARD,XB(H)::QAB(G)
        • S(h);N_GUARD,XB(H)::QAR2(G),XP(c)
        • S(a);N_GUARD::QAR(G)
      • Refutation
        • R(i);CHECK,XR(C)
  • Actual
    • R(C);
    • Threat
      • S(F)
    • Vars
      • R(i);N_GUARD,XB(H)::QAB(G)
      • S(h);N_GUARD,XB(H)::QAR2(G),XP(c)
      • S(a);N_GUARD::QAR(G)
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