MESON Chess Problem Database

Problem Display
PID: 17340 (4r3/1p2np1q/p7/4R2b/2Pk1Pn1/NRp2Q2/rb1BK3/8 w - - 0 1)

Buchwald, Julius

3rd Prize, Christian Science Monitor, 1946

4r3/1p2np1q/p7/4R2b/2Pk1Pn1/NRp2Q2/rb1BK3/8

#2

8 + 12

14773 The Best American Chess Problems of 1946 1948
5862 An ABC of Chess Problems 1970
4640 Chess Wizardry: The New ABC of Chess Problems 1996
5759 Selected Compositions of Julius Buchwald 2005

SOLUTION

  • SOUND
  • Sets
    • 1...Qd3+
      • 2.Qxd3#
    • 1...Qe4+
      • 2.Qxe4#
    • 1...Qg8
      • 2.Qe4#
      • 2.Qd3#
    • 1...Qh6
      • 2.Qe4#
      • 2.Qd3#
    • 1...Qg7
      • 2.Qe4#
      • 2.Qd3#
    • 1...Qh8
      • 2.Qe4#
      • 2.Qd3#
    • 1...Bc1
      • 2.Qxc3#
    • 1...Bxa3
      • 2.Qxc3#
    • 1...Sf2
      • 2.Be3#
    • 1...Sh2
      • 2.Be3#
    • 1...Se3
      • 2.Bxe3#
    • 1...Sxe5
      • 2.Be3#
    • 1...Sf6
      • 2.Be3#
    • 1...Sh6
      • 2.Be3#
    • 1...Sd5
      • 2.Qxd5#
    • 1...Sf5
      • 2.Qe4#
      • 2.Qd5#
      • 2.Qd3#
    • 1...Sc6
      • 2.Qd5#
    • 1...Sg6
      • 2.Qe4#
      • 2.Qd5#
      • 2.Qd3#
    • 1...Sc8
      • 2.Qd5#
    • 1...Sg8
      • 2.Qd5#
    • 1...f5
      • 2.Qd3#
  • Tries
    • 1.Sc2+?
      • 1...Kxc4
        • 2.Rb4#
      • 1...Qxc2!
    • 1.c5?
      • threat
        • 2.Rb4#
      • 1...Qd3+
        • 2.Qxd3#
      • 1...Qe4+
        • 2.Qxe4#
      • 1...Bxa3
        • 2.Qxc3#
      • 1...Sxe5
        • 2.Be3#
      • 1...Sd5
        • 2.Qxd5#
      • 1...Se3
        • 2.Bxe3#
      • 1...Sc6
        • 2.Qd5#
      • 1...a5!
  • Keys
    • 1.Rb4!
      • threat
        • 2.c5#
      • 1...Qd3+
        • 2.Qxd3#
      • 1...Qe4+
        • 2.Qxe4#
      • 1...Bxa3
        • 2.Qxc3#
      • 1...Sxe5
        • 2.Be3#
      • 1...Sd5
        • 2.Qxd5#
      • 1...Se3
        • 2.Bxe3#
      • 1...Sc6
        • 2.Qd5#
      • 1...a5
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 8
  • Sets
    • Q(k);CHECK,N_GUARD::QAR1(E),XQ(k)
    • B(b);N_GUARD,P_PINB(A)::QAB1(E),XP(c)
    • B(b);N_GUARD,P_PINB(A),XS(C)::QAB1(E),XP(c)
    • S(e);N_GUARD,P_PINQ(E)::B(A)
    • S(e);N_GUARD,P_PINQ(E)::B(A),XS(e)
    • S(e);N_GUARD,P_PINQ(E),XR(H)::B(A)
    • S(i);N_GUARD,P_PINR(H)::QAR1(E),XS(i)
    • S(i);N_GUARD,P_PINR(H)::QAR1(E)
    • P(j);S_CUTQ(k)::QAR1(E)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(d);P-FLIGHT,XP(F)::R1(D)
      • Refutation
        • Q(k);P_PINB(A),XS(C)
    • Try
      • P(F);
      • Threat
        • R(D)
      • Vars
        • Q(k);CHECK,N_GUARD::QAR1(E),XQ(k)
        • B(b);N_GUARD,P_PINB(A),XS(C)::QAB1(E),XP(c)
        • S(e);N_GUARD,P_PINQ(E),XR(H)::B(A)
        • S(i);N_GUARD,P_PINR(H)::QAR1(E),XS(i)
        • S(e);N_GUARD,P_PINQ(E)::B(A),XS(e)
        • S(i);N_GUARD,P_PINR(H)::QAR1(E)
      • Refutation
        • P(g);
  • Actual
    • R(D);
    • Threat
      • R(D)+P(F)
    • Vars
      • Q(k);CHECK,N_GUARD::QAR1(E),XQ(k)
      • B(b);N_GUARD,P_PINB(A),XS(C)::QAB1(E),XP(c)
      • S(e);N_GUARD,P_PINQ(E),XR(H)::B(A)
      • S(i);N_GUARD,P_PINR(H)::QAR1(E),XS(i)
      • S(e);N_GUARD,P_PINQ(E)::B(A),XS(e)
      • S(i);N_GUARD,P_PINR(H)::QAR1(E)
      • P(g);N_GUARD::S(C)
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