MESON Chess Problem Database

Problem Display
PID: 224790 (4BR2/b5p1/2R3b1/3k1NN1/pP3Pp1/2p5/3nK2p/3Q4 w - - 0 1)

Swords, WJ

Sunday Chronicle, 1944

(First published on Sun Dec 24 1944)

4BR2/b5p1/2R3b1/3k1NN1/pP3Pp1/2p5/3nK2p/3Q4

#2

9 + 9

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4
      • 2.Se7#
    • 1...Bc5
      • 2.Rxc5#
    • 1...Bb8
      • 2.Rc5#
  • Tries
    • 1.Se3+?
      • 1...Kd4
        • 2.Rc4#
        • 2.Rd6#
      • 1...Bxe3!
    • 1.Rff6?
      • threat
        • 2.Rfd6#
      • 1...Bc5
        • 2.Rxc5#
      • 1...Bb8
        • 2.Rc5#
      • 1...gxf6!
    • 1.Qh1+?
      • 1...Se4
        • 2.Qxe4#
      • 1...Sf3!
    • 1.Qxd2+?
      • 1...Bd4
        • 2.Se3#
        • 2.Se7#
        • 2.Rc5#
        • 2.Qa2#
        • 2.Qxd4#
      • 1...cxd2!
  • Keys
    • 1.Kd3!
      • threat
        • 2.Rd6#
      • 1...Bxf5+
        • 2.Rxf5#
      • 1...Bc5
        • 2.Rxc5#
      • 1...Bb8
        • 2.Rc5#
      • 1...Sc4
        • 2.Qh1#
      • 1...Se4
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(h);N_SPINS(a),SBLOCK::S(E)
    • B(h);N_GUARD::R1(G),XB(h)
    • B(h);N_GUARD::R1(G)
  • Tries
    • Try
      • S(E);CHECK
      • Refutation
        • B(h);XS(E)
    • Try
      • R(I);
      • Threat
        • R1(I)
      • Vars
        • B(h);N_GUARD::R1(G),XB(h)
        • B(h);N_GUARD::R1(G)
      • Refutation
        • P(i);XR(I)
    • Try
      • Q(A);CHECK,N_PINS(a)
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::QAB1(A),XS(a)
      • Refutation
        • S(a);P_SPINS(a)
    • Try
      • Q(A);CHECK,XS(a)
      • Refutation
        • P(c);XQ(A)
  • Actual
    • K(B);N_PINS(a),P_SPINS(E),S_FLIGHT
    • Threat
      • R1(G)
    • Vars
      • B(g);CHECK,OGATE,XS(E)::R(I),XB(g)
      • B(h);N_GUARD::R1(G),XB(h)
      • B(h);N_GUARD::R1(G)
      • S(a);N_GUARD::QAB(A)
      • S(a);N_PINS(E)::S(E)
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