MESON Chess Problem Database

Problem Display
PID: 89964 (3R2b1/4KN1P/7N/B1pPpP1r/1nPkP1R1/7p/1P2Q3/1B6 w - - 0 1)

Mladenovic, Slobodan

Die Schwalbe, 1974

3R2b1/4KN1P/7N/B1pPpP1r/1nPkP1R1/7p/1P2Q3/1B6

#2

14 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf5
      • 2.Sxf5#
    • 1...Sa2
      • 2.Qd3#
    • 1...Sc2
      • 2.Bc3#
    • 1...Sd3
      • 2.Qxd3#
    • 1...Sxd5+
      • 2.Rxd5#
    • 1...Sa6
      • 2.Bc3#
      • 2.Qd3#
    • 1...Sc6+
      • 2.dxc6#
  • Tries
    • 1.Bc7?
      • threat
        • 2.Bxe5#
      • 1...Sxd5+
        • 2.Rxd5#
      • 1...Sc6+
        • 2.dxc6#
      • 1...Rxf5
        • 2.Sxf5#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Bxf7!
    • 1.Qd1+?
      • 1...Kxc4
        • 2.Sd6#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Ke3!
    • 1.Qd2+?
      • 1...Sd3
        • 2.Qxd3#
      • 1...Kxc4!
    • 1.Qe3+?
      • 1...Kxc4
        • 2.Sd6#
      • 1...Kxe3!
    • 1.h8Q?
      • threat
        • 2.Qxe5#
      • 1...Sxd5+
        • 2.Rxd5#
        • 2.exd5#
      • 1...Sc6+
        • 2.dxc6#
      • 1...Rxf5
        • 2.Sxf5#
        • 2.exf5#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Bxf7!
    • 1.h8B?
      • threat
        • 2.Bxe5#
      • 1...Sxd5+
        • 2.Rxd5#
        • 2.exd5#
      • 1...Sc6+
        • 2.dxc6#
      • 1...Rxf5
        • 2.Sxf5#
        • 2.exf5#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Bxf7!
  • Keys
    • 1.Sxe5!
      • threat
        • 2.Sf3#
      • 1...Sxd5+
        • 2.exd5#
      • 1...Sc6+
        • 2.Sxc6#
      • 1...Kxe5
        • 2.h8Q#
        • 2.h8B#
      • 1...Rxf5
        • 2.exf5#
      • 1...Sd3
        • 2.Bc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • R(f);XP(I)::S(J),XR(f)
    • S(b);N_GUARD::QAR1(C)
    • S(b);OGATE::B(G)
    • S(b);N_GUARD::QAR1(C),XS(b)
    • S(b);CHECK,OGATE,P_SPINS(b),XP(H)::R1(N),XS(b)
    • S(b);CHECK,OGATE::R(N)+P(H),XS(b)
  • Tries
    • Try
      • B(G);
      • Threat
        • B(G),XP(e)
      • Vars
        • S(b);CHECK,OGATE,P_SPINS(b),XP(H)::R1(N),XS(b)
        • S(b);CHECK,OGATE::R(N)+P(H),XS(b)
        • R(f);XP(I)::S(J),XR(f)
        • S(b);N_GUARD::QAR1(C),XS(b)
      • Refutation
        • B(g);XS(L)
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);P-FLIGHT,XP(D)::S(L)
        • S(b);N_GUARD,P_SPINS(b)::QAR1(C),XS(b)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::QAR1(C),XS(b)
      • Refutation
        • K(c);P-FLIGHT,XP(D)
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);P-FLIGHT,XP(D)::S(L)
      • Refutation
        • K(c);S_FLIGHT,XQ(C)
    • Try
      • P(M);P_PINP(e)
      • Threat
        • QAB1(M),XP(e)
      • Vars
        • S(b);CHECK,OGATE::R(N)+P(H),XS(b)
        • S(b);N_GUARD::QAR1(C),XS(b)
      • Refutation
        • B(g);XS(L)
    • Try
      • P(M);P_PINP(e)
      • Threat
        • B(M),XP(e)
      • Vars
        • S(b);CHECK,OGATE::R(N)+P(H),XS(b)
        • S(b);N_GUARD::QAR1(C),XS(b)
      • Refutation
        • B(g);XS(L)
  • Actual
    • S(L);XP(e)
    • Threat
      • S(L)
    • Vars
      • S(b);CHECK,OGATE,P_SPINS(b),XP(H)::R(F)+P(E),XS(b)
      • S(b);CHECK,N_GUARD::S(L),XS(b)
      • K(c);S_FLIGHT,XS(L)::P=Q
      • R(f);OGATE,XP(I)::R(F)+P(E),XR(f)
      • S(b);OGATE::B(G)
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