MESON Chess Problem Database

Problem Display
PID: 229657 (8/3p1Kp1/3k4/2RN1P2/rp1Q4/6N1/bn6/bq1n3B w - - 0 1)

Eddy, Edwin John

Southend Times, 1937

(First published on Wed Mar 3 1937)

8/3p1Kp1/3k4/2RN1P2/rp1Q4/6N1/bn6/bq1n3B

#2

7 + 10

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qe4
      • 2.Sxe4#
    • 1...Qxf5+
      • 2.Sxf5#
    • 1...Qc1
      • 2.Se4#
    • 1...Bxd5+
      • 2.Qxd5#
    • 1...Sd3
      • 2.Se4#
    • 1...Sc4
      • 2.Sc3#
    • 1...b3
      • 2.Sb4#
  • Tries
    • 1.Rc6+?
      • 1...Kxc6
        • 2.Qb6#
      • 1...dxc6!
  • Keys
    • 1.Rc8!
      • threat
        • 2.Qf4#
      • 1...Qxf5+
        • 2.Sxf5#
      • 1...Bxd5+
        • 2.Qxd5#
      • 1...Qe4
        • 2.Sxe4#
      • 1...Qc1
        • 2.Se4#
      • 1...Sd3
        • 2.Se4#
      • 1...Sc4
        • 2.Sc3#
      • 1...b3
        • 2.Sb4#
      • 1...g5
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • Q(b);N_GUARD::S(B),XQ(b)
    • Q(b);CHECK,XP(F)::S(B),XQ(b)
    • Q(b);N_GUARD::S(B)
    • B(d);CHECK,OGATE,P_SPINB(d),XS(E)::QAR1(C),XB(d)
    • S(e);S_CUTQ(b)::S(B)
    • S(e);N_PINS(E)::QAR(C)+S(E)
    • P(g);N_PINS(E)::QAR(C)+S(E)
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • K(h);P-FLIGHT,XR(D)::QAR1(C)
      • Refutation
        • P(i);XR(D)
  • Actual
    • R(D);
    • Threat
      • QAB(C)
    • Vars
      • Q(b);CHECK,XP(F)::S(B),XQ(b)
      • B(d);CHECK,OGATE,P_SPINB(d),XS(E)::QAR1(C),XB(d)
      • Q(b);N_GUARD::S(B),XQ(b)
      • Q(b);N_GUARD::S(B)
      • S(e);S_CUTQ(b)::S(B)
      • S(e);N_PINS(E)::QAR(C)+S(E)
      • P(g);N_PINS(E)::QAR(C)+S(E)
      • P(j);N_GUARD::QAR2(C)
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