MESON Chess Problem Database

Problem Display
PID: 11410 (2rR1q2/3B4/RP5Q/2knpr2/8/1K1PN3/1B6/4b3 w - - 0 1)

Dulcsan, Geza

1st HM., Magyar Sakkvilag, 1938

2rR1q2/3B4/RP5Q/2knpr2/8/1K1PN3/1B6/4b3

#2

9 + 7

3147 Chess Problems: Introduction to an Art 1963

SOLUTION

  • SOUND
  • Sets
    • 1...Rc6
      • 2.Qxc6#
    • 1...Ra8
      • 2.Qc6#
    • 1...Rb8
      • 2.Qc6#
    • 1...Rxd8
      • 2.Qc6#
    • 1...Bf2
      • 2.Ra5#
    • 1...Bg3
      • 2.Ra5#
    • 1...Bh4
      • 2.Ra5#
    • 1...Ba5
      • 2.Rxa5#
    • 1...Sb4
      • 2.Ra5#
    • 1...Sxb6
      • 2.Qxb6#
    • 1...Sf6
      • 2.Qxf8#
    • 1...Sc7
      • 2.Qc6#
    • 1...e4
      • 2.d4#
  • Tries
    • 1.Rxc8+?
      • 1...Sc7
        • 2.Rxc7#
        • 2.Qc6#
      • 1...Qxc8!
    • 1.Qxf8+?
      • 1...Se7
        • 2.Qxe7#
      • 1...Rxf8!
  • Keys
    • 1.Be8!
      • threat
        • 2.Rxd5#
      • 1...Rxd8
        • 2.Qc6#
      • 1...Sxe3
        • 2.Qxe3#
      • 1...Sxb6
        • 2.Qxb6#
      • 1...Qd6
        • 2.Qxd6#
      • 1...Qf7
        • 2.Qd6#
      • 1...Qg8
        • 2.Qd6#
      • 1...Sc3
        • 2.Ba3#
      • 1...Sb4
        • 2.Ra5#
      • 1...Sf4
        • 2.Rxc8#
      • 1...Sf6
        • 2.Qxf8#
      • 1...Sc7
        • 2.Qc6#
      • 1...Se7
        • 2.Qd6#
      • 1...e4
        • 2.d4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 7
  • Sets
    • R(f);N_GUARD::QAR1(G),XR(f)
    • R(f);N_GUARD::QAR1(G)
    • R(f);N_GUARD,P_PINP(F)::QAR1(G)
    • R(f);N_GUARD,XR(I)::QAR1(G)
    • B(a);N_GUARD::R(E)
    • B(a);N_GUARD::R(E),XB(a)
    • S(c);S_CUTB(a)::R(E)
    • S(c);OGATE,XP(F)::QAB1(G),XS(c)
    • S(c);N_GUARD,S_CUTR(e)::QAB(G),XQ(g)
    • S(c);S_CUTR(f)::QAR1(G)
    • P(d);N_GUARD::P(C)
  • Tries
    • Try
      • R(I);CHECK,XR(f)
      • Refutation
        • Q(g);XR(I)
    • Try
      • Q(G);CHECK,XQ(g)
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::QAB(G),XS(c)
      • Refutation
        • R(e);XQ(G)
  • Actual
    • B(H);
    • Threat
      • R1(I),XS(c)
    • Vars
      • R(f);N_GUARD,XR(I)::QAR1(G)
      • S(c);OGATE,XS(D)::QAB(G),XS(c)
      • S(c);OGATE,XP(F)::QAB1(G),XS(c)
      • Q(g);N_GUARD::QAB1(G),XQ(g)
      • Q(g);N_GUARD::QAB1(G)
      • S(c);N_GUARD,S_CUTB(a)::B(A)
      • S(c);S_CUTB(a)::R(E)
      • S(c);N_GUARD::R(I),XR(f)
      • S(c);N_GUARD,S_CUTR(e)::QAB(G),XQ(g)
      • S(c);S_CUTR(f)::QAR1(G)
      • S(c);S_CUTQ(g)::QAB1(G)
      • P(d);N_GUARD::P(C)
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