MESON Chess Problem Database

Problem Display
PID: 152553 (4rBb1/bNp2P2/5R2/1p3P2/RNpkP3/6P1/2P1pP2/2Q1K3 w - - 0 1)

Dawson, Thomas Rayner

British Chess Magazine, 1941

4rBb1/bNp2P2/5R2/1p3P2/RNpkP3/6P1/2P1pP2/2Q1K3

#2

13 + 8

15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Kc3
      • 2.Qa1#
    • 1...Kxe4
      • 2.Qf4#
    • 1...Re5
      • 2.Qe3#
    • 1...c3
      • 2.Sc6#
  • Tries
    • 1.Sc6+?
      • 1...Kc3
        • 2.Bb4#
        • 2.Ra3#
      • 1...Kxe4!
    • 1.Bd6?
      • threat
        • 2.Qe3#
      • 1...Kc3
        • 2.Qa1#
      • 1...Kxe4
        • 2.Qf4#
      • 1...Rxe4
        • 2.Qd2#
        • 2.c3#
      • 1...c3
        • 2.Sc6#
      • 1...cxd6!
    • 1.Rd6+?
      • 1...Kc3
        • 2.Sa2#
        • 2.Qa3#
        • 2.Qa1#
      • 1...Kxe4
        • 2.Qf4#
      • 1...Ke5
        • 2.Qf4#
      • 1...cxd6!
    • 1.Re6?
      • threat
        • 2.Bg7#
        • 2.Qd2#
        • 2.Qe3#
        • 2.c3#
      • 1...Kc3
        • 2.Qa1#
      • 1...Rxf8
        • 2.Qd2#
        • 2.Qe3#
        • 2.c3#
      • 1...c3
        • 2.Sc6#
      • 1...Rxe6!
    • 1.Qb2+?
      • 1...c3
        • 2.Sc6#
      • 1...Kxe4!
    • 1.Qd2+?
      • 1...Kxe4
        • 2.Qf4#
        • 2.Qd5#
      • 1...Ke5!
    • 1.Qa1+?
      • 1...c3
        • 2.Sc6#
      • 1...Kxe4!
    • 1.c3+?
      • 1...Kxe4
        • 2.Qf4#
      • 1...Ke5!
    • 1.fxe8Q?
      • threat
        • 2.Qd2#
        • 2.Qe3#
        • 2.c3#
      • 1...Kc3
        • 2.Qa1#
      • 1...c3
        • 2.Sc6#
      • 1...Be6!
    • 1.fxe8R?
      • threat
        • 2.Qd2#
        • 2.Qe3#
        • 2.c3#
      • 1...Kc3
        • 2.Qa1#
      • 1...c3
        • 2.Sc6#
      • 1...Be6!
  • Keys
    • 1.Bg7!
      • threat
        • 2.Re6#
      • 1...Kc3
        • 2.Qa1#
      • 1...Kxe4
        • 2.Qf4#
      • 1...Ke5
        • 2.Re6#
      • 1...Rxe4
        • 2.Rd6#
      • 1...Re5
        • 2.Qe3#
      • 1...Re6
        • 2.Rxe6#
      • 1...c3
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::QAB(A)
    • K(c);OGATEB,P-FLIGHT,XP(H)::QAR1(A)
    • R(g);SBLOCK::QAB1(A)
    • P(b);SBLOCK::R(F)+S(G),DCHECK
  • Tries
    • Try
      • S(G);CHECK,P_PINP(b)
      • Refutation
        • K(c);P-FLIGHT,XP(H)
    • Try
      • B(M);
      • Threat
        • QAB1(A)
      • Vars
        • K(c);S_FLIGHT::QAB(A)
        • K(c);OGATEB,P-FLIGHT,XP(H)::QAR1(A)
        • P(b);SBLOCK::R(F)+S(G),DCHECK
      • Refutation
        • P(f);XB(M)
    • Try
      • R(J);CHECK
      • Vars
        • K(c);P-FLIGHT,XP(H)::QAR1(A)
        • K(c);S_FLIGHT::QAB1(A)
      • Refutation
        • P(f);XR(J)
    • Try
      • R(J);
      • Threat
        • DUALS(4)
      • Vars
        • K(c);S_FLIGHT::QAB(A)
        • P(b);SBLOCK::R(F)+S(G),DCHECK
      • Refutation
        • R(g);XR(J)
    • Try
      • Q(A);CHECK
      • Vars
        • P(b);P_SPINP(b)::R(F)+S(G),DCHECK
      • Refutation
        • K(c);P-FLIGHT,XP(H)
    • Try
      • Q(A);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • P(b);P_SPINP(b)::R(F)+S(G),DCHECK
      • Refutation
        • K(c);P-FLIGHT,XP(H)
    • Try
      • P(C);CHECK
      • Vars
        • K(c);P-FLIGHT,XP(H)::QAR1(A)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • P(L);XR(g)
      • Threat
        • DUALS(3)
      • Vars
        • K(c);S_FLIGHT::QAB(A)
        • P(b);SBLOCK::R(F)+S(G),DCHECK
      • Refutation
        • B(h);
    • Try
      • P(L);XR(g)
      • Threat
        • DUALS(3)
      • Vars
        • K(c);S_FLIGHT::QAB(A)
        • P(b);SBLOCK::R(F)+S(G),DCHECK
      • Refutation
        • B(h);
  • Actual
    • B(M);
    • Threat
      • B(M)+R(J)
    • Vars
      • K(c);S_FLIGHT::QAB(A)
      • K(c);OGATEB,P-FLIGHT,XP(H)::QAR1(A)
      • K(c);S_FLIGHT::B(M)+R(J),DCHECK
      • R(g);SBLOCK,XP(H)::B(M)+R(J),DCHECK
      • R(g);SBLOCK::QAB1(A)
      • R(g);::B(M)+R(J),XR(g)
      • P(b);SBLOCK::R(F)+S(G),DCHECK
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