MESON Chess Problem Database

Problem Display
PID: 136537 (3r4/7b/Np5R/1R2n3/P1kN4/4P1n1/1P2r1p1/KQ3B2 w - - 0 1)

Eerkes, Allard Pieter

Magyar Sakkelet, 1952

3r4/7b/Np5R/1R2n3/P1kN4/4P1n1/1P2r1p1/KQ3B2

#2

10 + 8

6490 yacpdb 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Rb4#
    • 1...Bc2
      • 2.Qxc2#
    • 1...Bd3
      • 2.Qa2#
    • 1...Bg8
      • 2.Qc2#
    • 1...Sf5
      • 2.Qc2#
    • 1...Sd3
      • 2.Qa2#
    • 1...Sf3
      • 2.Rc6#
    • 1...Sg4
      • 2.Rc6#
    • 1...Sc6
      • 2.Rxc6#
    • 1...Sg6
      • 2.Qc2#
    • 1...Sf7
      • 2.Rc6#
  • Tries
    • 1.Bxe2+?
      • 1...Bd3
        • 2.Qa2#
        • 2.Qc2#
        • 2.Qc1#
      • 1...Sd3
        • 2.Rc6#
        • 2.Qa2#
        • 2.Qc2#
        • 2.Qc1#
      • 1...Sxe2!
    • 1.Qc1+?
      • 1...Bc2
        • 2.Qxc2#
      • 1...Kd3!
  • Keys
    • 1.Sf3!
      • threat
        • 2.Sxe5#
      • 1...Sxf3
        • 2.Rc6#
      • 1...Rd5
        • 2.Rb4#
      • 1...Re8
        • 2.Sd2#
      • 1...Sd3
        • 2.Qa2#
      • 1...Sg4
        • 2.Rc6#
      • 1...Sc6
        • 2.Rxc6#
      • 1...Sg6
        • 2.Qc2#
      • 1...Sd7
        • 2.Sd2#
      • 1...Sf7
        • 2.Rc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(h);SBLOCK::R1(H)
    • B(g);N_GUARD::QAR2(B),XB(g)
    • B(g);N_SPINR(a),SBLOCK::QAB(B)
    • B(g);N_GUARD::QAR2(B)
    • S(c);S_CUTB(g)::QAR2(B)
    • S(e);N_SPINR(a),SBLOCK::QAB(B)
    • S(e);N_GUARD::R(J)
    • S(e);N_GUARD::R(J),XS(e)
    • S(e);S_CUTB(g)::QAR2(B)
  • Tries
    • Try
      • B(C);CHECK,XR(a)
      • Refutation
        • S(c);XB(C)
    • Try
      • Q(B);CHECK
      • Vars
        • B(g);N_GUARD,P_SPINB(g)::QAR2(B),XB(g)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • S(G);
    • Threat
      • S(G),XS(e)
    • Vars
      • S(e);N_GUARD,XS(G)::R(J)
      • R(h);SBLOCK::R1(H)
      • R(h);N_GUARD::S(G)
      • S(e);N_SPINR(a),SBLOCK::QAB(B)
      • S(e);N_GUARD::R(J)
      • S(e);N_GUARD::R(J),XS(e)
      • S(e);S_CUTB(g)::QAR2(B)
      • S(e);S_CUTR(h)::S(G)
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