MESON Chess Problem Database

Problem Display
PID: 149395 (8/1Qp2pKp/4pP1B/2Rr3k/2p4p/p5bP/8/6R1 w - - 0 1)

Dawson, Thomas Rayner

Western Morning News and Mercury, 1921

(First published on Sat Sep 17 1921)

8/1Qp2pKp/4pP1B/2Rr3k/2p4p/p5bP/8/6R1

#2

7 + 10

15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc5
      • 2.Qf3#
    • 1...Re5
      • 2.Qf3#
    • 1...Rf5
      • 2.Qf3#
    • 1...Rg5+
      • 2.Rxg5#
    • 1...Be5
      • 2.Rg5#
    • 1...c6
      • 2.Qxf7#
  • Tries
    • 1.Qxd5+?
      • 1...Be5
        • 2.Rg5#
        • 2.Qf3#
        • 2.Qd1#
        • 2.Qxe5#
      • 1...e5
        • 2.Qf3#
        • 2.Qxf7#
        • 2.Qd1#
      • 1...exd5!
    • 1.Qb2?
      • threat
        • 2.Qe2#
      • 1...Rg5+
        • 2.Rxg5#
      • 1...axb2!
    • 1.Qb3?
      • threat
        • 2.Qd1#
        • 2.Qf3#
      • 1...Rg5+
        • 2.Rxg5#
      • 1...Be5
        • 2.Rg5#
        • 2.Qf3#
      • 1...c3
        • 2.Qd1#
      • 1...e5
        • 2.Qf3#
      • 1...cxb3!
    • 1.Qxc7?
      • threat
        • 2.Qxf7#
      • 1...Rg5+
        • 2.Rxg5#
      • 1...Bxc7!
  • Keys
    • 1.Qb1!
      • threat
        • 2.Qd1#
      • 1...Rg5+
        • 2.Rxg5#
      • 1...Be5
        • 2.Rg5#
      • 1...e5
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • R(e);N_SPINR(e),OGATE,XR(C)::QAB(F)
    • R(e);OGATE::QAB(F)
    • R(e);CHECK,OGATE::R1(C),XR(e)
    • B(b);N_SPINR(e),OGATE,P_PINP(D)::R1(A)
    • P(h);OGATE::QAB(F),XP(i)
  • Tries
    • Try
      • Q(F);CHECK,XR(e)
      • Refutation
        • P(g);P_SPINP(g),XQ(F)
    • Try
      • Q(F);
      • Threat
        • QAB(F)
      • Vars
        • R(e);CHECK,OGATE::R1(C),XR(e)
      • Refutation
        • P(a);XQ(F)
    • Try
      • Q(F);
      • Threat
        • DUALS(2)
      • Vars
        • R(e);CHECK,OGATE::R1(C),XR(e)
        • P(c);::QAB(F)
        • P(g);N_SPINR(e)::QAB(F)
      • Refutation
        • P(c);XQ(F)
    • Try
      • Q(F);XP(h)
      • Threat
        • QAB(F),XP(i)
      • Vars
        • R(e);CHECK,OGATE::R1(C),XR(e)
      • Refutation
        • B(b);XQ(F)
  • Actual
    • Q(F);
    • Threat
      • QAB(F)
    • Vars
      • R(e);CHECK,OGATE::R1(C),XR(e)
      • B(b);N_SPINR(e),OGATE,P_PINP(D)::R1(A)
      • P(g);N_GUARD,N_SPINR(e),S_CUTR(e)::QAR2(F)
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