MESON Chess Problem Database

Problem Display
PID: 79605 (4B2R/6P1/7B/5P2/6kn/3Q1p1N/5P2/R6K w - - 0 1)

Reeves, Alfred Christopher

The Tablet, 1966

(First published on Sat Nov 12 1966)

4B2R/6P1/7B/5P2/6kn/3Q1p1N/5P2/R6K

#2

10 + 3

15239 Valois Notebooks 2017

SOLUTION

  • SOUND
  • Tries
    • 1.Bc1?
      • 1...Kxh3
        • 2.Qxf3#
      • 1...Sxf5
        • 2.Qe4#
      • 1...Sg2
        • 2.g8Q#
        • 2.g8R#
      • 1...Sg6!
    • 1.Be3?
      • 1...Sxf5
        • 2.Qe4#
      • 1...Sg2
        • 2.g8Q#
        • 2.g8R#
      • 1...Sg6
        • 2.Rg1#
      • 1...Kxh3!
    • 1.Bf4?
      • 1...Kxh3
        • 2.Qxf3#
      • 1...Sg2
        • 2.g8Q#
        • 2.g8R#
      • 1...Sg6
        • 2.Rg1#
      • 1...Sxf5!
    • 1.Bg5?
      • threat
        • 2.Rxh4#
      • 1...Kxh3
        • 2.Rxh4#
        • 2.Qxf3#
      • 1...Sxf5
        • 2.Qe4#
      • 1...Sg6
        • 2.Rg1#
      • 1...Sg2!
    • 1.Rg1+?
      • 1...Kxh3
        • 2.Rg3#
      • 1...Sg2!
    • 1.g8Q+?
      • 1...Kxh3
        • 2.Qg3#
      • 1...Sg6!
    • 1.g8R+?
      • 1...Kxh3
        • 2.Rg3#
      • 1...Sg6!
  • Keys
    • 1.Bd2!
      • 1...Kxh3
        • 2.Qxf3#
      • 1...Sxf5
        • 2.Qe4#
      • 1...Sg2
        • 2.g8Q#
        • 2.g8R#
      • 1...Sg6
        • 2.Rg1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(G);
      • Vars
        • K(b);P_SPINP(a),P_SPINS(c),S_FLIGHT,XS(E)::QAR2(D),XP(a)
        • S(c);XP(F)::QAR2(D)
        • S(c);N_GUARD::P=Q
      • Refutation
        • S(c);
    • Try
      • B(G);
      • Vars
        • S(c);XP(F)::QAR2(D)
        • S(c);N_GUARD::P=Q
        • S(c);N_GUARD::R(A)
      • Refutation
        • K(b);P_SPINS(c),S_FLIGHT,XS(E)
    • Try
      • B(G);
      • Vars
        • K(b);P_SPINP(a),P_SPINS(c),S_FLIGHT,XS(E)::QAR2(D),XP(a)
        • S(c);N_GUARD::P=Q
        • S(c);N_GUARD::R(A)
      • Refutation
        • S(c);XP(F)
    • Try
      • B(G);
      • Threat
        • R1(J),XS(c)
      • Vars
        • S(c);XP(F)::QAR2(D)
        • S(c);N_GUARD::R(A)
      • Refutation
        • S(c);
    • Try
      • R(A);CHECK
      • Vars
        • K(b);P_SPINP(a),S_FLIGHT,XS(E)::R1(A)
      • Refutation
        • S(c);P_SPINS(c)
    • Try
      • P(H);CHECK
      • Vars
        • K(b);OGATE,P_SPINP(a),S_FLIGHT,XS(E)::QAR1(H)
      • Refutation
        • S(c);P_SPINS(c)
    • Try
      • P(H);CHECK
      • Vars
        • K(b);OGATE,P_SPINP(a),S_FLIGHT,XS(E)::R1(H)
      • Refutation
        • S(c);P_SPINS(c)
  • Actual
    • B(G);
    • Vars
      • K(b);P_SPINP(a),P_SPINS(c),S_FLIGHT,XS(E)::QAR2(D),XP(a)
      • S(c);XP(F)::QAR2(D)
      • S(c);N_GUARD::P=Q
      • S(c);N_GUARD::R(A)
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