MESON Chess Problem Database

Problem Display
PID: 152931 (K3k3/RQ3pB1/3R4/6b1/1n3p2/1q5b/8/5n2 w - - 0 1)

Dawson, Thomas Rayner

British Chess Magazine, 1942

K3k3/RQ3pB1/3R4/6b1/1n3p2/1q5b/8/5n2

#2

5 + 8

15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Qd1
      • 2.Qxf7#
    • 1...Qc2
      • 2.Qxf7#
    • 1...Qa4
      • 2.Qxf7#
    • 1...Qb1
      • 2.Qxf7#
    • 1...Qb2
      • 2.Qxf7#
    • 1...Qa3
      • 2.Qxf7#
    • 1...Qc3
      • 2.Qxf7#
    • 1...Qd3
      • 2.Qxf7#
    • 1...Qe3
      • 2.Qxf7#
    • 1...Qg3
      • 2.Qxf7#
    • 1...Bd7
      • 2.Qxd7#
    • 1...Bh6
      • 2.Qe7#
    • 1...Be7
      • 2.Qxe7#
    • 1...Sd5
      • 2.Qxf7#
    • 1...f5
      • 2.Qd7#
    • 1...f6
      • 2.Qe7#
  • Tries
    • 1.Qc6+?
      • 1...Bd7
        • 2.Qxd7#
      • 1...Sxc6!
    • 1.Qc8+?
      • 1...Bd8
        • 2.Rxd8#
        • 2.Qxd8#
      • 1...Bxc8!
    • 1.Qb5+?
      • 1...Bd7
        • 2.Qxd7#
      • 1...Sc6!
    • 1.Qb8+?
      • 1...Bd8
        • 2.Rxd8#
        • 2.Qxd8#
      • 1...Bc8!
  • Keys
    • 1.Rh6!
      • threat
        • 2.Rh8#
      • 1...Kd8
        • 2.Rh8#
      • 1...Bxh6
        • 2.Qe7#
      • 1...Bd7
        • 2.Qxd7#
      • 1...Be7
        • 2.Qxe7#
      • 1...f5
        • 2.Qd7#
      • 1...f6
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 11
  • Sets
    • Q(b);N_GUARD::QAB1(C),XP(g)
    • Q(b);N_GUARD,P_PINR(B)::QAB1(C),XP(g)
    • B(c);N_GUARD::QAB1(C),XB(c)
    • B(f);N_GUARD::QAR1(C)
    • B(f);N_GUARD::QAR1(C),XB(f)
    • S(d);S_CUTQ(b)::QAB1(C),XP(g)
    • P(g);S_CUTB(c)::QAB1(C)
    • P(g);S_CUTB(f)::QAR1(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • B(c);N_GUARD,P_SPINB(c)::QAB1(C),XB(c)
      • Refutation
        • S(d);XQ(C)
    • Try
      • Q(C);CHECK
      • Refutation
        • B(c);XQ(C)
    • Try
      • Q(C);CHECK
      • Vars
        • B(c);N_GUARD,P_SPINB(c)::QAB1(C),XB(c)
      • Refutation
        • S(d);P_SPINS(d)
    • Try
      • Q(C);CHECK
      • Refutation
        • B(c);P_SPINB(c)
  • Actual
    • R(A);
    • Threat
      • R(A)
    • Vars
      • K(h);P-FLIGHT::R(A)
      • B(f);N_GUARD,XR(A)::QAR1(C)
      • B(c);N_GUARD::QAB1(C),XB(c)
      • B(f);N_GUARD::QAR1(C),XB(f)
      • P(g);S_CUTB(c)::QAB1(C)
      • P(g);S_CUTB(f)::QAR1(C)
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