MESON Chess Problem Database

Problem Display
PID: 79020 (4R3/3Qn3/2p1r3/2P3b1/4k1K1/3N4/3r1P2/2N5 w - - 0 1)

Rice, John Michael

The Tablet, 1961

(First published on Sat May 27 1961)

4R3/3Qn3/2p1r3/2P3b1/4k1K1/3N4/3r1P2/2N5

#2

7 + 6

15239 Valois Notebooks 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Be3
      • 2.f3#
    • 1...Sf5
      • 2.Rxe6#
    • 1...Sc8
      • 2.Rxe6#
    • 1...Sg8
      • 2.Rxe6#
  • Tries
    • 1.Se2?
      • threat
        • 2.Sc3#
        • 2.Sg3#
        • 2.Qd4#
      • 1...Rxd3
        • 2.Qxe6#
      • 1...Rd6
        • 2.Qf5#
      • 1...Sd5
        • 2.Qh7#
      • 1...Rc2
        • 2.Sg3#
        • 2.Qd4#
      • 1...Be3
        • 2.Sc3#
        • 2.Sg3#
        • 2.f3#
      • 1...Bf4
        • 2.Sc3#
        • 2.Qd4#
      • 1...Bh4
        • 2.Sc3#
        • 2.Qd4#
      • 1...Bf6
        • 2.Sg3#
      • 1...Sf5
        • 2.Sc3#
        • 2.Rxe6#
      • 1...Rxe2!
  • Keys
    • 1.Sb3!
      • threat
        • 2.Qd4#
      • 1...Rxd3
        • 2.Qxe6#
      • 1...Rd6
        • 2.Qf5#
      • 1...Sd5
        • 2.Qh7#
      • 1...Be3
        • 2.f3#
      • 1...Bf6
        • 2.Sxd2#
      • 1...Sf5
        • 2.Rxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • B(c);SBLOCK::P(B)
    • S(f);OGATE,P_SPINR(e)::R(G),XR(e)
  • Tries
    • Try
      • S(A);
      • Threat
        • DUALS(3)
      • Vars
        • R(a);SBLOCK,XS(C)::QAR2(F),XR(e)
        • R(e);OGATE,P_SPINS(f)::QAB1(F)
        • S(f);OGATE,P_SPINR(e),SBLOCK::QAB(F)
        • B(c);::S(A)
      • Refutation
        • R(a);XS(A)
  • Actual
    • S(A);
    • Threat
      • QAR1(F)
    • Vars
      • R(a);SBLOCK,XS(C)::QAR2(F),XR(e)
      • R(e);OGATE,P_SPINS(f)::QAB1(F)
      • S(f);OGATE,P_SPINR(e),SBLOCK::QAB(F)
      • B(c);SBLOCK::P(B)
      • B(c);N_GUARD::S(A),XR(a)
      • S(f);OGATE,P_SPINR(e)::R(G),XR(e)
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