MESON Chess Problem Database

Problem Display
PID: 268428 (B3nN2/2r3Q1/1r1k1Pp1/2R3nq/P3b2p/Kp2P1N1/8/2R1B3 w - - 0 1)

Russell, HA

Sunday Referee, 1929

(First published on Sun Jun 9 1929)

B3nN2/2r3Q1/1r1k1Pp1/2R3nq/P3b2p/Kp2P1N1/8/2R1B3

#2

11 + 10

15239 Valois Notebooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc5
      • 2.Qe7#
    • 1...Rc6
      • 2.Qd7#
      • 2.Qe7#
    • 1...Rd7
      • 2.Qxd7#
    • 1...Re7
      • 2.Qxe7#
    • 1...Rc8
      • 2.Qd7#
      • 2.Qe7#
    • 1...Bb1
      • 2.Rd5#
    • 1...Bc2
      • 2.Rd5#
    • 1...Bd3
      • 2.Rd5#
    • 1...Bd5
      • 2.Rxd5#
    • 1...Bf5
      • 2.Rd5#
    • 1...Sf3
      • 2.Sxe4#
    • 1...Sh3
      • 2.Sxe4#
    • 1...Se6
      • 2.Sxe4#
    • 1...Sf7
      • 2.Sxe4#
    • 1...Sh7
      • 2.Sxe4#
    • 1...Sxf6
      • 2.Qxc7#
    • 1...hxg3
      • 2.Bxg3#
  • Tries
    • 1.Sf5+?
      • 1...Bxf5
        • 2.Rd5#
      • 1...gxf5!
  • Keys
    • 1.Bc3!
      • threat
        • 2.Be5#
      • 1...Kxc5
        • 2.Bb4#
      • 1...Rxc5
        • 2.Qd7#
        • 2.Qe7#
      • 1...Re7
        • 2.Qxe7#
      • 1...Bc2
        • 2.Rd5#
      • 1...Bd5
        • 2.Rxd5#
      • 1...Sf3
        • 2.Sxe4#
      • 1...Sh3
        • 2.Sxe4#
      • 1...Se6
        • 2.Sxe4#
      • 1...Sf7
        • 2.Sxe4#
      • 1...Sh7
        • 2.Sxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • R(i);N_GUARD,XR(G)::QAB1(I)
    • R(i);N_GUARD::QAR1(I),XR(i)
    • R(i);N_GUARD::QAB1(I),XR(i)
    • B(b);N_GUARD::R1(G)
    • B(b);N_GUARD::R1(G),XB(b)
    • S(d);N_GUARD::S(E),XB(b)
    • S(j);N_GUARD,XP(H)::QAB1(I),XR(i)
    • P(c);OGATE,XS(E)::B(B),XP(c)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • B(b);XS(E)::R1(G)
      • Refutation
        • P(h);XS(E)
  • Actual
    • B(B);
    • Threat
      • B(B)
    • Vars
      • K(g);OGATEB,S_FLIGHT,XR(G)::R(A)+B(B),DCHECK
      • R(i);N_GUARD::QAB1(I),XR(i)
      • B(b);N_GUARD::R1(G)
      • B(b);N_GUARD::R1(G),XB(b)
      • S(d);N_GUARD::S(E),XB(b)
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