MESON Chess Problem Database

Problem Display
PID: 146216 (1n2RK2/5N2/1p2P1p1/3R4/Q1P1k1Pn/1p2p1B1/b3Prr1/8 w - - 0 1)

Thomson, Robert Gavin

Brisbane Courier, 1918

(First published on Sat Aug 31 1918)

1n2RK2/5N2/1p2P1p1/3R4/Q1P1k1Pn/1p2p1B1/b3Prr1/8

#2

10 + 10

14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe2
      • 2.Sg5#
    • 1...Rxf7+
      • 2.exf7#
    • 1...Sf3
      • 2.Sd6#
    • 1...Sf5
      • 2.Sg5#
    • 1...Sd7+
      • 2.exd7#
    • 1...b2
      • 2.Qc2#
  • Tries
    • 1.Kg8?
      • threat
        • 2.Sg5#
        • 2.Sd6#
      • 1...Rxe2
        • 2.Sg5#
      • 1...Rxf7
        • 2.exf7#
      • 1...Rf5
        • 2.Sd6#
      • 1...Sf3
        • 2.Sd6#
      • 1...Sf5
        • 2.Sg5#
      • 1...g5
        • 2.Sxg5#
        • 2.Sd6#
      • 1...Rxg3!
    • 1.Rd2?
      • threat
        • 2.c5#
      • 1...Rxf7+
        • 2.exf7#
      • 1...Sd7+
        • 2.exd7#
      • 1...Rxe2
        • 2.Sg5#
      • 1...Sf3
        • 2.Sd6#
      • 1...Sf5
        • 2.Sg5#
      • 1...Sa6
        • 2.Qc6#
      • 1...Sc6
        • 2.Qxc6#
      • 1...b2
        • 2.Qc2#
      • 1...b5
        • 2.cxb5#
      • 1...exd2!
    • 1.Rd6?
      • threat
        • 2.c5#
      • 1...Rxf7+
        • 2.exf7#
      • 1...Sd7+
        • 2.exd7#
      • 1...Rxe2
        • 2.Sg5#
      • 1...Sf5
        • 2.Sg5#
      • 1...Sa6
        • 2.Qc6#
      • 1...Sc6
        • 2.Qxc6#
      • 1...b2
        • 2.Qc2#
      • 1...b5
        • 2.cxb5#
      • 1...Sf3!
    • 1.Qd7?
      • threat
        • 2.Rd4#
        • 2.Re5#
      • 1...Rxf7+
        • 2.exf7#
      • 1...Sxd7+
        • 2.exd7#
      • 1...Rxe2
        • 2.Sg5#
      • 1...Rxg3
        • 2.Rd4#
      • 1...Rf5
        • 2.Rd4#
      • 1...Sf3
        • 2.Sd6#
      • 1...Sf5
        • 2.Sg5#
        • 2.Re5#
      • 1...Sc6!
  • Keys
    • 1.Rd1!
      • threat
        • 2.c5#
      • 1...Rxf7+
        • 2.exf7#
      • 1...Sd7+
        • 2.exd7#
      • 1...Rxe2
        • 2.Sg5#
      • 1...Sf3
        • 2.Sd6#
      • 1...Sf5
        • 2.Sg5#
      • 1...Sa6
        • 2.Qc6#
      • 1...Sc6
        • 2.Qxc6#
      • 1...b2
        • 2.Qc2#
      • 1...b5
        • 2.cxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(b);N_PINS(H),XP(A)::S(H)
    • R(b);CHECK,OGATE,XS(H)::R(I)+P(G),XR(b)
    • S(g);N_PINS(H)::S(H)
    • S(j);CHECK,OGATE::R(I)+P(G),XS(j)
    • P(d);OGATE::QAB(C)
  • Tries
    • Try
      • K(J);N_SPINS(H),P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • R(b);XP(A)::S(H)
        • R(b);OGATE,XS(H)::R(I)+P(G),XR(b)
        • R(b);::S(H)
        • S(g);::S(H)
      • Refutation
        • R(c);XB(B)
    • Try
      • R(F);
      • Threat
        • QAR(C)+P(D)
      • Vars
        • R(b);CHECK,OGATE,XS(H)::R(I)+P(G),XR(b)
        • S(j);CHECK,OGATE::R(I)+P(G),XS(j)
        • R(b);N_PINS(H),XP(A)::S(H)
        • S(g);N_PINS(H)::S(H)
        • S(j);N_GUARD::QAB(C)
        • S(j);N_GUARD::QAB(C),XS(j)
        • P(d);OGATE::QAB(C)
        • P(h);OGATE::QAR(C)+P(D),XP(h)
      • Refutation
        • P(e);XR(F)
    • Try
      • R(F);
      • Threat
        • QAR(C)+P(D)
      • Vars
        • R(b);CHECK,OGATE,XS(H)::R(I)+P(G),XR(b)
        • S(j);CHECK,OGATE::R(I)+P(G),XS(j)
        • R(b);N_PINS(H),XP(A)::S(H)
        • S(g);N_PINS(H)::S(H)
        • S(j);N_GUARD::QAB(C)
        • S(j);N_GUARD::QAB(C),XS(j)
        • P(d);OGATE::QAB(C)
        • P(h);OGATE::QAR(C)+P(D),XP(h)
      • Refutation
        • S(g);N_PINS(H)
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(b);CHECK,OGATE,XS(H)::R(I)+P(G),XR(b)
        • S(j);CHECK,OGATE,XQ(C)::R(I)+P(G),XS(j)
        • R(b);N_PINS(H),XP(A)::S(H)
        • R(c);XB(B)::R1(F)
        • R(b);::R1(F)
        • S(g);N_PINS(H)::S(H)
      • Refutation
        • S(j);
  • Actual
    • R(F);
    • Threat
      • QAR(C)+P(D)
    • Vars
      • R(b);CHECK,OGATE,XS(H)::R(I)+P(G),XR(b)
      • S(j);CHECK,OGATE::R(I)+P(G),XS(j)
      • R(b);N_PINS(H),XP(A)::S(H)
      • S(g);N_PINS(H)::S(H)
      • S(j);N_GUARD::QAB(C)
      • S(j);N_GUARD::QAB(C),XS(j)
      • P(d);OGATE::QAB(C)
      • P(h);OGATE::QAR(C)+P(D),XP(h)
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