MESON Chess Problem Database

Problem Display
PID: 248612 (2rN3K/P1k1P1Q1/7R/Pb3B1n/n7/2qN2b1/2R5/8 w - - 0 1)

Nidiry, Joseph J

British Chess Magazine, 1932

2rN3K/P1k1P1Q1/7R/Pb3B1n/n7/2qN2b1/2R5/8

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd8+
      • 2.e8S#
    • 1...Be1
      • 2.Qe5#
    • 1...Bf2
      • 2.Qe5#
    • 1...Bh4
      • 2.Qe5#
    • 1...Be5
      • 2.Qxe5#
    • 1...Bc4
      • 2.Rc6#
    • 1...Sb6
      • 2.axb6#
    • 1...Sf4
      • 2.Qe5#
    • 1...Sf6
      • 2.Qxg3#
  • Tries
    • 1.e8Q+?
      • 1...Bd7
        • 2.Qxd7#
      • 1...Sxg7!
  • Keys
    • 1.Sb4!
      • threat
        • 2.Sd5#
      • 1...Rxd8+
        • 2.e8S#
      • 1...Sf6
        • 2.Qxg3#
      • 1...Bc4
        • 2.Rc6#
      • 1...Bc6
        • 2.Sa6#
      • 1...Sb6
        • 2.axb6#
      • 1...Sf4
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • R(g);CHECK,SBLOCK,XS(I)::P=S
    • B(b);N_GUARD::QAB(H)
    • B(b);N_GUARD::QAB(H),XB(b)
    • B(d);N_GUARD,N_SPINQ(a),S_CUTQ(a)::R1(E)
    • S(c);OGATE::P(C),XS(c)
    • S(e);S_CUTB(b)::QAB(H)
    • S(e);N_PINQ(H)::QAB(H),XB(b)
  • Tries
    • Try
      • P(G);CHECK,N_SPINS(I)
      • Vars
        • B(d);N_GUARD,P_SPINB(d)::QAR1(G),XB(d)
      • Refutation
        • S(e);XQ(H)
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • R(g);CHECK,SBLOCK,XS(I)::P=S
      • S(e);N_PINQ(H)::QAB(H),XB(b)
      • B(d);N_GUARD,N_SPINQ(a),S_CUTQ(a)::R1(E)
      • B(d);N_GUARD,N_SPINQ(a)::S(B)
      • S(c);OGATE::P(C),XS(c)
      • S(e);S_CUTB(b)::QAB(H)
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